This deep-space image showcases two stunning nebulae in the constellation Auriga: the Tadpoles Nebula (IC 410) at the top center, and the Flaming Star Nebula (IC 405) toward the lower left.

IC 410, the Tadpoles Nebula, is an emission nebula located about 12,000 light-years from Earth. It surrounds the young star cluster NGC 1893, whose massive, energetic stars light up and shape the surrounding gas. The 'tadpoles' that give the nebula its nickname are dense streams of dust and gas about 10 lightyears long. They are assumed to be sites of star formation.

IC 405, the Flaming Star Nebula, lies in the lower left portion of the image. This beautiful mix of emission and reflection nebula is about 1,500 light-years away and is illuminated by the hot, massive star AE Aurigae. Its flowing, flame-like filaments of gas and dust give the nebula its name and striking appearance.

Set against a dense star field, this image uses narrowband imaging techniques to highlight different elements: hydrogen, oxygen, and sulfur. The result reveals both the structure and composition of these rich star-forming regions.

This image is a SHO combination with the classic gold and blue hues of the Hubble Palette

Equipment

Telescope: William Optics Megrez 88

Mount: Equatorially mounted Skywatcher AZ-GTI

Camera: ZWO ASI 1600MM

Filters: Baader H/Sii/Oiii with ZWO EFW

Autofocus: ZWO EAF

Autoguider: ZWO ASI 385MC & Artesky Guidescope UltraGuide 32mm

Rig control: ZWO ASIAir

15x 300s H

15x 300s Sii

15x 240s Oiii

Ebbene sì!!! Elaborare questa immagine è stato per me veramente difficile!

Ci troviamo nella costellazione della Coda del Serpente, tra le costellazioni dello Scudo e Ofiuco, nei pressi dell'equatore galattico. E' una zona ricca di dense nebulose oscure e polveri che fanno parte della "Fenditura dell'Aquila" e al loro interno una vasta regione HII di formazione stellare. Questa nebulosa è catalogata con le sigle LBN90, "Sh2-64" , RCW174 e "Westerhout 40" o W40. Dista dalla Terra circa 1420 a.l. ed è difficilmente osservabile perchè oscurata dalle dense nubi oscure interstellari che la circondano.

Alla ricerca di un nuovo target, sono incappato per caso su questa debole nebulosa ma mi ha attratto il contrasto tra zone ricche di stelle e zone molto oscure. Ho iniziato quindi ad integrare le prime ore di esposizione e con mia sosrpresa ho notato la presenza di deboli nebulosità più chiare che si stagliavano sulle nubi stellari e sulle nubi oscure. Incuriosito ho cercato conferme sul web che ho puntualmente trovato, ma i migliori risultati erano ottenuti da siti con cieli molto bui Bortle 2 o persino dalla Namibia. Dal mio cielo Bortle5-6 infatti queste deboli nubi venivano rovinate dai gradienti e si presentavano alquanto rumorose. Che fare? Ho deciso di sfidare queste difficoltà integrando il più possibile e arrivando quasi a 43h.

E così sono riuscito a raggiungere un discreto risultato, malgrado i problemi causati dai gradienti da Inquinamento luminoso o la difficoltà nel gestire il riverbero di alcune stelle come la stella 60Ser.

La sfida è stata dura ma la soddisfazione alla fine non è mancata.

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Well, yes!!! Processing this image was really difficult for me!

We are in the "Serpens Tail" constellation, between the constellations Scutum and Ophiuchus, near the galactic equator. It is an area rich in dense dark nebulae and dust that are part of the "Aquila Rift" and within them a vast HII star-forming region. This nebula is cataloged as LBN90, "Sh2-64", RCW174, and "Westerhout 40" or W40. It is about 1420 light years from Earth and is difficult to observe because it is obscured by the dense interstellar dark clouds surrounding it.

In search of a new target, I stumbled upon this faint nebula by chance, but I was intrigued by the contrast between star-rich areas and very dark areas. I then began integrating the first few hours of exposure and, to my surprise, noticed the presence of faint, brighter nebulosity standing out against the star clouds and dark clouds. Curious, I searched the web for confirmation, which I promptly found, but the best results were obtained from sites with very dark skies, such as Bortle 2 or even Namibia. From my Bortle 5-6 sky, these faint clouds were ruined by the gradients and appeared quite noisy. What to do? I decided to challenge these difficulties by integrating as much as possible, reaching almost 43 hours.

And so I managed to achieve a decent result, despite the problems caused by the gradients from light pollution and the difficulty in managing the glare of some stars, such as star 60Ser.

The challenge was tough, but the satisfaction in the end was not lacking.

Google translator

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Optic: APO Refractor Askar 103APO + 0.6X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Seeing: 3-4 (scala Antoniadi)

Filter: Astronomik CLS

Narrowband filter: Optolong L-eNhance 2"

-446x300s 121gain/ 25 darks /29 flats /29 darkflats /80 biases (Astronomik CLS)

-67x300s 121gain/ 25 darks /29 flats /29 darkflats /80 biases (Optolong L-eNhance 2" )

t° sensor: -5°C

Date: 2026-07-04+05+06+07+08+09+11+12+13+14

Integration: 42h 45m

Temperature: 24°C (media)

location for: Biancavilla -Catania-(Italy) 515m slm (Bortle 5-6)

flic.kr/p/8AWHek

lightpollutionmap.app/it/?lat=37.641252&lng=14.871604...

Acquisition: NINA, PHDGuiding

Processing: SIRIL1.4.4, GraXpert, ARm, SCUNet_Denoise, StarNet 2.5, PS

Tout d'abord, bonne année 2023 à tous 😁 ! On commence enfin l'année avec cette première publication qui aura su se faire attendre (traitement galère entre airglow, brume, nuages et givre ).

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✨ La pluie d’étoiles filantes des “Géminides” est la plus prolifique de l’année avec environ 150 météores/heure lors de son pic d’activité ! Le problème, c’est que ce pic arrive au milieu du mois de Décembre et la météo est souvent mauvaise à cette période. Cet hiver ne fait pas exception. On compte les nuits dégagées de ces 2 derniers mois sur les doigts d'une main 😪. C'est très frustrant de faire de l'Astro en France et encore plus dans ch'Nord ️.

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🏰 Le Donjon de Bours est un vestige médiéval situé sur la commune de Bours. Classé monument historique depuis 1965, il est érigé au XIVᵉ siècle. Il s'agit de l'un des plus anciens logis nobles de la région.

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🚗 Il m'a fallu parcourir 600km en 4 nuits pour éviter les nuages et ainsi tenter de capturer des météores. Voici tous les détails de ces nuits d'acquisition (bien-sûr, il faisait nuageux partout en France le 14 décembre, nuit du maximum) :

Triple setup (All Sky Camera, 14mm et 15mm)

All Sky Camera en remote à domicile

Nuits du 11-12-13-15 Décembre sur différents spots

4500 clichés entre 15 et 20 secondes (environ 22h d'acquisition au total)

112 météores confirmés au total (31 dans le champ ici)

20h de tri et de traitement

Bortle 5 à 7

Ciel : pano 9 tuiles, stack de 3x90s ISO1250 f/2 au 35mm chacune

Sol : pano 6 tuiles, pose unique 30s ISO1600 f/2 au 35mm

Orientation ciel-sol conservée, sur le même spot. Météores en position d'origine

Canon France EOS Ra + EOS R6 + EOS 6Da + 35mm f/1.4L II USM

Sky-Watcher USA Star Adventurer GTi

A classic shot from my backyard in New Orleans.

Televue NP-101IS

Optolong L-Ultimate Dual Band Filter

ZWO ASI071MC Pro

Takahashi EM-200

35x5m Exposures

Exoplanet Orbiting Two Stars

My Interplanetary Memories

Interplanetary Travel

A sea of clouds surrounding me on the exoplanet. And the blue planet rising above it. That planet also had two suns. Everything was quite suitable for life on this planet with double suns. Its correct position to the sun made this planet highly habitable. However, unfortunately, this planet was also recorded as another planet that they left after being chosen as a habitat by the plutonians for a while. The dark force that followed them and made them leave the planets had not left them on this planet either. I was very curious about this dark force that frightens a civilization with technology advanced enough to migrate between planets. On the other hand, I had a growing fear of this dark power. However, this fear also increased my curiosity towards this dark power. I wanted to find the Plutonian civilization and the dark force that frightened them and was so terrifying that it would push them to abandon their planet. When I found the Plutonian civilization, I did not know how they would welcome me. Perhaps they would be hostile. Perhaps they would accept me and make me a member of civilization. The only thing I am sure of is the fact that I am traveling into the unknown in the depths of space.

Camera: Canon EOS Kiss X7i

Photograph by Yusuf Alioglu

Location: Outer space (space)

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Orion is setting earlier every day now. Time to post another image of my favorite winter constellation, before the "Orion Season" draws to an end.

I captured this 'deep' exposure in early January, when it was still possible see Orion rising.

The night before, I was partially fogged out and even though it cleared again later in the night, I missed the rise if Orion.

I therefore decided to hike to a slightly higher spot the next night and face the cold one more time. Shortly after sunset, the fog started to form again, but thanks to my higher vantage point, the fog top stayed some 200m below my position, enabling my to successfully capture my planned composition.

The low fog not only added a special mood to the foreground, it also blocked a good part of the light pollution and thus enabled me to capture one of my most detailed Orion widefields to date, with a popping Barnard's Loop and an almost 3 dimensional Witchhead Nebula.

Sometimes, landscape astrophotograohers are walking a thin line. A few meters of hight difference or a slight difference in temperature or air pressure can be all that separates a successful shooting from a total failure.

Prints available: ralf-rohner.pixels.com

EXIF

Canon EOS 6D, astro-modified

Canon EF 24-70mm f/2.8 @ 70mm; f/4

iOptron SkyTracker Pro

Sky:

30 x 60s + 10 x 15s + 10 x 5s @ ISO1600

Foreground:

5 x 120s @ ISO1600

First image using the new Celestron Edge HD 9.25 SCT.

Messier 81 (M81), also known as Bode’s Galaxy, is a grand design spiral galaxy located in the constellation Ursa Major. The galaxy lies at an approximate distance of 11.8 million light years from Earth and has an apparent magnitude of 6.94. It has the designation NGC 3031 in the New General Catalogue. Technical Info:

36 x 180 sec. ZWO Red filter

35 x 180 sec. ZWO Green filter

32 x 180 sec. Zwo Blue filter

Gain 200, Offset 50, Binning 1x1

Total Integration 5.2 hours

Celestron Edge HD 9.25 f/10 SCT Reflector

Sensor cooled to -15°C on ZWO ASI1600MM Pro (mono)

Calibration frames: Bias, Darks, and Flats.

Plate Solve-PlateSolver 2 via N.I.N.A. 2.0

Image processing Pixinsight 1.8.9, and Photoshop CC 2023

Equipment:

Scope: GSO 8" f/4 with 2" Moonlite autofocuser, flocked

Coma corrector: TS GPU

Mount: EQ6-R

Camera: Nikon D750 mod

Guide scope: ZWO 280/60

Guide camera: ZWO ASI 120MC-S

Filter: RGB - Baader UV/IR cut, Ha - Antlia ALP-T

Acquisition:

Location: central Poland, Bortle 5/6

Lights:

- RGB: 119x120s ISO 1600 per panel

- ALP-T: 32x480s ISO 1600 per panel

Darks: none

Flats: x80 per night

Darkflats: x80 per night

Bias: x100

Total exposure time: 24h 42min

🌀 M81 & M82 // Galaxies de Bode et du Cigare

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✅ Tout premier test du télescope avec la caméra refroidie et les premiers résultats sont encourageants ! C’est d’ailleurs également ma toute première mosaïque du ciel profond (2 tuiles). Malgré un échantillonnage juste, le niveau de détail atteint est tout de même assez bluffant. J’ai pu profiter de la qualité du ciel nocturne de notre spot favori avec @otsugaphoto pour essayer d’avoir rapidement du signal. Néanmoins le faible temps de pose induit encore beaucoup de bruit et je ne peux pas tirer les détails au maximum comme j'aimerai. Il y a par exemple les IFN qui apparaissent au traitement si je tire fort sur les curseurs mais je préfère ne pas détériorer la qualité de l'image.

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🌌 M81 est une galaxie spirale-barrée située qui fut découverte par Johann Elert Bode en 1774. La répartition de la masse de la galaxie n’est pas homogène en raison de l’effet de marée dû à la proximité (~ 150 000 AL) d’une autre galaxie moins massive.

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M82, la galaxie du Cigare, est une galaxie irrégulière située dans la constellation de la Grande Ourse. Avec M81, ces deux galaxies forment avec d’autres un groupe de galaxies proche du nôtre. M82 représente le prototype d’une galaxie irrégulière. Son noyau, qui semble avoir énormément souffert d’un rapprochement avec M81 il y a quelques centaines de millions d’années, se trouve dans une phase de violente activité stellaire et présente de remarquables raies sombres. Il s’agit d’une galaxie à sursaut de formation d’étoiles. De grandes quantités de matières sont éjectées à environ 1 000 km/s de la galaxie. On suppose que ces éjections sont dues à l’explosion de supernovas.

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M81 :

-Type d'objet : Galaxie spirale

-Distance : 12 M d’AL

-Dimensions : 96 000 AL

-Magnitude apparente : 6.9

M82 :

-Type d'objet : Galaxie irrégulière

-Distance : 14,7 M d’AL

-Dimensions : 47 000 AL

-Magnitude apparente : 8.4

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EXIF :

-@zwoasi 533MM Pro

-Newton 250/1000 tube maison fibre/carbone

-@sky_watcher_official AZ-EQ6

-Asiair plus + EAF

-Omegon 50/180

-Zwo ASI 120MM mini

-2 nuits (23 et 24/06/23)

-L = 100*120s

-R/V/B = 3*10*180s

-Ha = 10*600s

-6h30 au total (3h15 par tuile)

-Lune moyenne à 31%

-Bortle 4

-Pix

[ 2022 ]

Premier post de cette nouvelle année. J'en profite pour vous souhaiter une excellente santé, du bonheur dans vos vies mais aussi une montagne de merveilleux clichés !

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Quoi de mieux qu'une photo de ma Champagne natale pour commencer 2022 🍇 ?! Voici une image que j'avais teaser il y'a plusieurs mois déjà, elle a été prise au printemps dernier au moulin de Verzenay. Ayant assez peu l'occasion de faire de l'Astro dans la Marne, je voulais marquer le coup en essayant de réaliser mon premier "deepscape", un astro-paysage au téléobjectif en ayant au moins une nébuleuse du ciel profond.

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La fin du printemps était une période idéale pour réaliser un deepscape ici. La Voie Lactée se lève très horizontalement et la région du Cygne se trouve à l'Est juste au dessus du coteau ou se trouve le moulin, parfait pour une prise de vue en contre-plongée. C'est aussi le moment de la floraison des vignes, les feuilles sont d'un vert pétant et on devine timidement les premiers raisins.

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Au 135mm, je n'avais pas l'ensemble du paysage ou alors pas assez de ciel. J'ai alors réalisé un panorama de 4 photos verticales. Quatre pour le sol sans suivi et quatre pour le ciel avec suivi. Pour contrer la pollution lumineuse de Reims qui se trouve 20km dans mon dos, j'ai utilisé le filtre Nisi Natural Night. Vous pouvez distinguer facilement la nébuleuse de l'Amérique du Nord à gauche et la nébuleuse du papillon (Sadr) à droite. Ce sont des cibles assez facile avec un APN défiltré car très lumineuses.

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Sol : 1x4x30s iso 1000 f/2.8 fin de l'heure bleue.

Ciel : 8x4x90s iso 1600 f/2.8 Star Adventurer.

Canon 6Da + Samyang 135mm f/2 + Nisi Natural Night, traitement PI & PS.

Même spot et même orientation, tout est fait au même endroit et sur la même nuit.

Markarian's Chain is a stretch of galaxies that forms part of the larger Virgo Custer in the constellation of Virgo. The two bright galaxies on the lower section of the chain are M84 and M86 discovered by Charles Messier in 1781. In this field of view approximately 30 identified galaxies are visible making it a spectacular target to image.

A combination of 10 nights imaging in January and February 2022 and May 2023 using two different cameras. 2022 images were taken using a mono camera and 4 filters, 2023 images were taken using a colour camera and a single filter.

Imaging and processing details can be found on my Astrobin page at: astrob.in/full/zy1fpo/0/

Thank you for looking.

Technical summary:

Captured: 7,8,29,30,31 Jan 2022, 1,2,3 Feb 2022 and 13,14 May 2023

Imaging Sessions: 10

Location: Gérgal, Andalucía, Spain 2022 and Gorafe, Granada, Spain 2023

Bortle Class: 4 Gergal, 3 Gorafe

Total Integration: 23 hours 10 minutes

Blue 116x 120s 3hr 52m BIN 1 Gain 100 -5C

Blue 4x 300s 20m BIN 1 Gain 100 -5C

Green 123x 120s 4hr 6m BIN 1 Gain 100 -5C

Green 11x 300s 55m BIN 1 Gain 100 -5C

Red 149x 120s 4hr 58m BIN 1 Gain 100 -5C

Red 8x 300s 40m BIN 1 Gain 100 -5C

UV/IR 142x 120s 4hr 44m BIN 1 Gain 100 -5C

UV/IR 3x 300s 15m BIN1 Gain 100 -5C

Moon & Skyglow: 40x 300s 3hr 20m BIN 1 -5C

Pixel Scale: 2 arcsec/pixel

Telescope: William Optics GT 81 385mm

Imaging Cameras: ZWO ASI6200MM Pro and ZWO ASI2600MC Pro

Guiding: ZWO UniGuide 50mm - ZWO ASI120MM-S

Filters: ZWO R, G, B, UV/IR and Baader Moon & Skyglow

Mount: Skywatcher EQ6-R Pro

Capture Computer: Eagle 4

Capture software: NINA, PHD2

Editing software: PixInsight, Adobe Lightroom

If you've seen my feed, you know I've been working on deepspace landscapes like this basically all winter. This is my most recent effort. The foreground is an old fire tower and observation deck. In the sky, from left to right, is the M38 star cluster, the tad pole nebula (the blueish object), and then the flame nebula just above. I thought the idea of the flame nebula and a fire tower was poetic in a way.

My goal with this series has been to illustrate just how big these objects in the night sky are, by showing them near terrestrial objects. Ah if only our eyes could see this!

The Butterfly nebula (IC1318) is located in the constellation of Cygnus. The whole region is huge... Here you can only see IC1318b (upper area of nebulosity) and IC1318c (the lower area). IC1318b and c constitute a single giant HII cloud bisected by a thick obscuring dust lane known as LDN 889 which is shown in the middle of the frame.

The bright star to the top right is a class F8 star known as Sadr or Gamma Cygni. Its true location is only 750 light years away and not related to the nebulosity which is much more distant at 5000 light years.

This is a 6 pane mono mosaic. It has been stitched together using Astro Pixel Processor, whch created a seamless mosaic.

Details

M: Mesu 200

T: TMB 152/1200

C: QSI683 with 3nm Astrodon Ha filter

16x1800s in EACH pane, totalling 48 hours of exposure time.

M33 is a large, bright galaxy in the constellation Triangulum. Part of the Local Group of Galaxies, which also includes the Milky Way and Andromeda Galaxies, it lies at a distance of "only" 2.7 million light years.

Telescope: Tele Vue 76mm Refractor with 0.8x Focal Reducer (383mm focal length)

Camera: QSI 683wsg

Mount: iOptron iEQ45 Pro

Integration: 75 minutes each of RGB (15 x 5mins)

Software: PixInsight 1.8.8

LBN 458, LBN 462, LBN 460 and more

Equipment:

Epsilon 130D dual rig

QHY268m + CFW3M

TS2600MP (Touptek IMX571) + ZWO EFW

Astronomik DeepSky RGB

Astronomik MaxFR

Pegasus NYX-101

June/July 2024

Location: french alp

412x180s Luminanz

34x180s red

46x180s green

43x180s blue

26,75 total

The first color image to feature Sivan 5 and Sivan 6?

I believe this is the first successful color image of the nebulae Sivan 5 and Sivan 6. Siv 5 is the larger mass at the top. Siv 6 lies beneath it and includes Sh2-287, the bright section bottom center. The swooping red wisp that stretches from left to right and looks like a ship’s hull isn’t officially part of either nebula.

Astronomer J.P. Sivan identified these forgotten nebulae in 1974 from an Hα survey of the Milky Way in which they appeared as a couple of tiny, irregular blots. Apparently, no one has bothered with them since.

Sivan nebulae are large and exceedingly faint: this image spans over 5° of the constellation Monoceros; and total exposure time is 74 hours with narrowband filters. This area has been photographed before, but always with far less exposure time. Thus, they scarcely reveal these Sivan objects at all, not that anyone was looking for them. In fact, even the small, brighter Sharpless objects in this image barely appear in most other widefield images. If you find any that clearly show these Sivan nebulae, please let me know and I will update this page.

...Speaking of blots, in the cosmic Rorschach ink blot test that is interstellar space, to me this looks like a dog (or seal) sitting in a boat with a single sail. So, I call this the Seadog Nebula.

OTA: Takahashi FSQ-106 EDX4

GUIDER: Stellarvue F50

MOUNT: Software Bisque Paramount MyT

CAMERA: FLI ML-16070M

GUIDE CAMERA: ZWO ASI 174 Mini M

REDUCER: Takahashi 645 QE .72x f/3.6

SOFTWARE: SGP, PhD2, TheSkyX, Pixinsight, Starnet++, Photoshop

FILTERS: Astrodon LRGB

ACCESSORIES: Optec Gemini Focuser/Rotator

LOCATION: SRO

COPYRIGHT: 2021 JKLOVELACE

Data Acquisition from 2020-10-17 until 2021-01-13

DSO Color Mapping: SH-HO-O with RGB stars

Original Image (Pix) Scale: 4.00

For More Technical Information: www.astrobin.com/1dnvcy/0/

To see more of my work and to buy prints visit www.jklovelacephotography.com/pages/space

Orion Nebula / Nebulosa de Orión (M42, Messier 42, NGC 1976)

Second and last attempt in 2021 to shoot the M42 nebula, in this time with the same unmodified Sony A7M3 camera and Sony FE 100-400 GM lens, but I use the tracker Skytwatcher AZ-GTI in EQ Mode and QHY guided camera with 60mm tube to increase exposure times.

The location and the weather conditions were ideal, but everything began to go wrong when I did not carry the AC50s Powerbank with me to power the laptop, badly enough that I always carry another portable Powerbank for the tracker, this except the day. During the session, the Sony A7M3 did not admit to connecting any of the 2 Mini-USB cables that it carried for the remote shutter camera control, so I finally decided to launch the shots with the wireless remote control and keeping track of the exposure time.

Despite all this, for a 54 min. total exposure time, quite a few details of this magnificent nebula have been captured with this equipment. It is definitely worth the effort to use guided mount and tracking, there is a brutal difference in the results obtained compared to using only a tripod and low exposure times.

I will continue in future sessions trying to capture more light by increasing the number of shots and exposure.

Segundo y último intento en 2021 de captar a M42, en esta ocasión con la misma cámara no modificada Sony A7M3 y el objetivo Sony FE 100-400 GM, pero utilizo la montura guiada Skytwatcher AZ-GTI EQ Mode y una cámara de seguimiento QHY con tubo de 60mm para aumentar los tiempos de exposición.

La nueva ubicación y las condiciones meteorológicas fueron las idóneas, pero todo se empezó a torcer cuando no lleve conmigo el Powerbank AC50s para alimentar el portátil, manos mal que siempre llevo para la montura otro Powerbank portable, esto salvo el día. Durante la sesión, la Sony A7M3 no admitió conectar ninguno de los 2 cables Mini-USB que llevaba para el auto disparador, por lo que finalmente decidí lanzar las tomas con el mando a distancia y llevando la cuenta del tiempo de exposición.

A pesar de todo ello, para ser una toma de 54 min. de tiempo total de exposición, se han captado bastantes detalles de esta magnífica nebulosa con este equipo.

Definitivamente merece el esfuerzo utilizar montura guiada y seguimiento, hay una diferencia brutal en los resultados obtenidos con respecto a utilizar trípode fijo y bajos tiempos de exposición.

Seguiré en futuras sesiones intentando captar más luz aumentando el número de tomas y exposición.

- Date/Fecha: 12/30/2021

- Higueruelas 1.010m asl (39° 48' 25" N / 0° 53' 19" O)

Bortle 4 location

GEAR

- Tracker Sky-Watcher AZ-GTi EQ Mode

- Guiding with QHY 5L-II Mono and guidescope EZG-60

- Camera Sony ILC3-A7M3 APS-C Mode

- Lens Sony FE 100-400mm F4.5-5.6 GM OSS

IMAGE

- 20 Lights at 600mm, ISO 800, 30seg, f5.6 (for the core)

- 30 Lights at 600mm, ISO 1600, 90seg, f5.6 (for the nebula)

- 17 Darks at 600mm, ISO 800, 30seg, f5.6

- 5 Darks at 600mm, ISO 800, 90seg, f5.6

- 8 Darks at 600mm, ISO 1600, 90seg, f5.6

- Total time of exposition 54m.

SOFTWARE

- Stellarium & PHD2 to guide the tracker

- Stacked with DeepSkyStacker

- Image viewer Adobe Bridge

- Image processing with Adobe Camera Raw and Adobe Photoshop

©2021 All rights reserved. MSB.photography

Thank all for your visit and awards.

On Explore 01/02/2022

I tested my 500 mm lens with iOptron CEM60EC mount... I am not so satisfied with result, picture is litle bit blury because no auto guiding and noisy because short acquisition. I lookng forward to your comments, advises and tips 🙏

OBJECT: M101, Pinwheel Galaxy, Const. Uma, apparent mag. 7,86, apparent dim. 29 x 27 arcmin. FOV 3,24 x 2,03 arcdeg, sampling rate 1,79 arcsec / px, cropped 1,53 x.

GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor 500/5,6 PF, No filter, Tracking mount iOptron CEM60EC - 3 star alignment, no auto guiding.

ACQUISITION: May 20, 2020, CZ. Lights 13x, Darks 5x, Bias 5x, Flats 5x. Exposure 300 s, ISO 400, f 5,6

POST PROCESSING: Stacking APP, Adobe PS.

SHO processing

Equipment:

Epsilon 130ED dual rig

QHY268m + CFW3M

Touptek IMX571 + ZWO EFW

Astronomik MaxFR

Skywatcher EQ8

July 2022

Processing: PixInsight/affinity photo

276 x 180s Ha

80 x 180s OIII

80 x 180s SII

total: 21,8 hour

Explanation: At the down right, large spiral galaxy NGC 1055 joins spiral Messier 77 in this sharp cosmic view toward the aquatic constellation Cetus. The narrowed, dusty appearance of edge-on spiral NGC 1055 contrasts nicely with the face-on view of M77's bright nucleus and spiral arms. Both over 100,000 light-years across, the pair are dominant members of a small galaxy group about 60 million light-years away. At that estimated distance, M77 is one of the most remote objects in Charles Messier's catalog and is separated from fellow island universe NGC 1055 by at least 500,000 light-years. The field of view is about the size of the full Moon on the sky and includes colorful foreground Milky Way stars (with diffraction spikes) along with more distant background galaxies. (text: apod.nasa.gov/apod/ap141226.html)

This picture was photographed October, 13-17, 2015 in Rozhen observatory, Bulgaria.

Equipment: home assembled reflector 10 in., f/3.8

Mount WhiteSwan-180 with a control system «Eqdrive Standart», camera QSI-583wsg, Televue Paracorr-2. Off-axis guidecamera QHY5L-II.

LRGB filter set Baader Planetarium.

L = 18 * 900 seconds + 18 * 300 seconds, bin.1, RGB = 11 * 300-450 seconds, bin.1 each filter. About 9 hours.

FWHM source in L filter 2.24 "-2.68", summ in L channel - 2.46"

The height above the horizon from 36° to 48°, the scale of 1"/ pixel.

Processed Pixinsight 1.8 and Photoshop CS6

Horse head late Feb 2023

The Iris Nebula is a bright reflection nebula in the constellation Cepheus. It resides about 1,300 light-years away from earth and is six light-years across. Technical Info:

34 x 300 sec. Badder UV/IR Cut filter

22 x 300 sec. Astronomik Ha 12 nm filter

46 x 300 sec. Optolong L-eHance

Gain 200, Offset 50, Binning 1x1

Total Integration 8.5 hours

Explore Scientific 102mm f/7 APO Refractor

Sensor cooled to -20°C on ZWO ASI294MC Pro (OSC)

Calibration frames: Bias, Darks, and Flats.

Plate Solve-ASTAP via N.I.N.A. 1.11

Image processing Pixinsight 1.8.8 and finished in Photoshop CC 2021

reworked

The Whirlpool Galaxy is an interacting spiral galaxy in the constellation Canes Venatici

at distance of 23 Mio. Lj

LRGB

Equipment:

TS 10" f/4 ONTC Newton

1000mm f4

GPU Aplanatic Koma Korrector

Moravian CCD G2-8300FW

Astrodon LRGB Filter

Losmandy G11/LFE Photo

Guding:

Lodestar on TS Optics - ultra short 9mm Off Axis Guider

PHD2

16x900s Luminanz

5x900s RGB

total exposure time: 7h 45′

Processing: PixInsight/Affinity Photo

IC 2944, aka the Running Chicken Nebula, is an emission nebula associated with an open star cluster in the constellation Centaurus. Just right of centre are Thackeray's Globules - a group of Bok Globules comprised of dense cosmic dust and gas. Bok Globules are often a site of star formation but not in this case.

Captured at Yass, Australia 5-24 April, 2018.

Scope: Planewave CDK17 @ f/6.8 = 2939mm FL

Mount: Paramount ME

Camera: SBIG STXL-11002/AOX

Filters: Astrodon LRGB gen II, 3nm NB

Image scale: 0.63 arcsec/pixel

Exposures: 14x1800s Ha, 14x1800s Oiii, 14x1800s Sii (21 hours)

Processing: PixInsight 1.8.5

Comet:

60x20s red

60x20s green

60x20s blue

180sx20s Luminanz

Stars:

11x180s red

11x180s green

11x180s blue

30x180s Luminanz

Equipment:

Epsilon 130D dual rig

QHY268m + CFW3M

TS2600MP (Touptek IMX571) + ZWO EFW

Astronomik DeepSky RGB

Astronomik MaxFR

Pegasus NYX-101

23.10.2024 19:28 - 20:44

The Whirlpool Galaxy is one of the most spectacular sights when observing the night sky. Located at about 31 million years from us, it is a grand design spiral galaxy interacting with another one, in a slow dance by which both will merge within several million years. As a result of this, tidal streams of stars are swirling around, here seen as the faint light patch around. The Whirlpool Galaxy has lots of star formation areas - the bluish areas reveal the presence of young and hot stars.

Shot at Santa Susana, Portugal on the 29th and 30th of April, 2022 and at Barcarena, Portugal on the 24th, 25th, 26th and 27th of January 2023.

Technical details:

LUM: 172 x 180’’ (8h36)

RGB: 120 x 180’’ (6h00)

Ha: 119 x 300’’ (9h55)

Total integration: 24h31

SW EQ6-R Pro | TS Optics Triplet APO 800/115 | TS Optics TSFLAT2 0.79x | QHYCCD 268M | Optolong LRGB |Astronomik Ha 6nm | RBFocus Gaius-S | RBFocus Myrrdin 2.3

Acquisition: N.I.N.A. |

Processing: Pixinsight

More than 38 hours of total exposures went into this 4 panels mosaic covering about 140 square degrees of sky.

Pentax 67 EDIF 300mm f/4 - FLI Proline 16803 - Ha (920m) OIII (890) R (160m) G (160m) B (160m) - Coonabarabran, NSW, Australia

If you would like to see larger sizes of this image or get high quality professional prints please visit my homepage at www.glitteringlights.com

The Spaghetti Nebula is a supernova remnant (SNR) in the Milky Way, straddling the border between the constellations Auriga and Taurus. The nebulous area has an almost spherical shell and a filamentary structure. It is believed that the stellar explosion left behind a rapidly spinning neutron star known as a pulsar in the nebula core, emitting a strong radio signal. Sh2-240 is approximately 3,000 light-years from earth.

Image captured over 3 nights; 2023-02-12, 14, & 16

7 hours 20 minutes total integration

Ha subs 14 * 1,200 sec = 4 hours 40 min

OIII subs 8 * 1,200 sec = 2 hours 40 min

Imaging Equipment:

Canon EF 70-200mm at 135mm

Rainbow Astro RST-135,

ZWOASI294MM Pro camera

SH 3.0nm filters

Messier 104 a.k.a. Sombrero Galaxy

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Discovered 250 years ago, the Sombrero galaxy (The Hat) is an elliptical galaxy located just over 30 million light-years from us and can be seen between the constellation Virgo and the constellation Corvus. According to measurements made by specialists in the field, M104 has a diameter of about 40,000 light-years, being about 3 times smaller than our galaxy. The name of the Hat is given both by the angle from which we can see it, and due to that prominent ring of cosmic dust that surrounds this galaxy and which is also the main source of new star formation. Regarding the nucleus of this galaxy, with the help of special infrared measurements it was found that in the galactic center of M104 there is a massive black hole, larger than in any other galaxy located within a radius of 40 million light years around the Milky Way.

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Equipment and settings:

Mount: Skywatcher Eq6 R

Telescope: 150/750 Newtonian telescope

Camera: ASI 533MC Pro

Total integration: 4 hours.

120 light frames x 2 min + calibration frames.

Stacking in Deep Sky Stacker.

Edit in Pixinsight and Lightroom.

www.thesun.co.uk/sol/homepage/news/2725529/Northern-Light...

Peek toward the handle of the Big Dipper with a telescope and you can find the Pinwheel Galaxy also known as M101. It lies 21 million light-years away, meaning the light traveled for 21 million years before hitting my camera's sensor. Discovered in 1781 by Pierre Méchain, one of Charles Messier's colleagues, the spiral arms stretches 170,000 light-years wide—almost twice the size of our Milky Way Galaxy.

Equipment:

SkyWatcher EQ6-R

Nikkor 800mm f/5.6 AI-S at f/5.6

Sony a7rIII (unmodified)

ZWO 30mm Guide Scope

GPCAM2 Mono Camera

Acquisition:

Taos, NM: my front yard - Bortle 3

40 x 212-second exposures for 2 hours, 11 minutes and 20 seconds of exposure time.

5 dark frames

15 flats frames

15 bias frames

Guided

Software:

SharpCap

PHD2

PixInsight

Photoshop

Lightroom

My a7rIII and adapted Nikon 800mm f/5.6 lens were mounted to my SkyWatcher EQ6-R mount using a vixen rail. The guidescope/camera was fixed to the front of the rail. I used SharpCap to achieve "excellent" polar alignment. I shot ISO 1600 at f/5.6. I took 212-second exposures using PHD2 with my guidescope to keep tracking accurately. I brought the lights/darks/flats/bias frames into PixInsight for stacking and aligning and then used: STF, Cropping, GraXpert, Dynamic Background Extraction, BlurXTerminator, plate solving, color correction, NoiseXTerminator, and then the galaxy was separated from the stars using StarXterminator, and both files processed and stretched separately and then recombined using PixelMath. That file was brought into Lightroom for Metadata and EXIF tags, light post-processing, and cropping. I used Photoshop to sharpen the final image.

English below

Abell 85 o LBN576, nota come Nebulosa Testa d'Aglio, è un resto di supernova nella costellazione di Cassiopea distante circa 9780 anni luce e di diametro di circa 98 anni luce.

11 ore e 20 minuti in pose guidate da 600 secondi con filtro dualband Antlia ALP-T 5nm, per le stelle un'ora in pose guidate da 60 secondi con filtro broadband SV260. Telescopio newton 150/600 con correttore Tecnosky 0.95x, camera Tecnosky Vision 571C, montatura Eq6-R Pro, elaborazione in Pixinsight.

Abell 85 or LBN576, known as the Garlic Nebula, is a supernova remnant in the constellation Cassiopeia, approximately 9,780 light-years away and approximately 98 light-years in diameter.

11 hours and 20 minutes in 600-second guided exposures with an Antlia ALP-T 5nm dual-band filter, and one hour for stars in 60-second guided exposures with an SV260 broadband filter. 150/600 Newtonian telescope with a Tecnosky 0.95x corrector, Tecnosky Vision 571C camera, EQ6-R Pro mount, and Pixinsight processing.

We haven't had a lot of clear skies during the "COVID days", however when we have had some I've tried to take advantage of it. In the mean time though, I've been working on some older images like this one. I captured the pictures that make up this image last year in Arizona, and then recently re-processed them and am SUPER happy with the result. The night sky is just so intriguing!

Volcanic turmoil, radiating out from the propeller nebular . DWB-111 Propeller Nebula is an emission nebula in the constellation Cygnus

This is the next installment of my 2016 Cygnus exploration. This image is made up of two panels and has an integration of approximately 50 hours of photography.

First light with the new scope! IC 1848 - The Soul Nebula in LRGB. The next door neighbor to the well-imaged Heart Nebula, which I imaged in narrowband back in 2020. I've never shot this target before and while initially it was "just a first light target", I was pleasantly surprised with the small structures and Bok globules within the nebula itself as well as the broadband dust that surrounds it.

- Location: Remote Observatory (Bortle 1, SQM 21.99) near Fort Davis, TX

- Total Exposure Time: 30.35 Hours

Equipment:

- Scope: Takahashi FSQ106EDX4

- Imaging Camera: QHY 268M

- Filters: Chroma LRGB (36mm)

- Mount: Astro Physics Mach1GTO

- Guidescope: SVBony 50mm Guidescope

- Guide camera: ASI 120mm mini

- Focuser: Moonlite Nitecrawler WR35

- Accessories: Pegasus Ultimate Powerbox v2, QHY Polemaster, Optec Alnitak Flip Flat

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Software:

- N.I.N.A for image acquisition, platesolving, and framing

- PHD2 for guiding

- PixInsight for processing

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Acquisition:

- L: 319 x 3m

- R: 99 x 3m

- G: 97 x 3m

- B: 92 x 3m

- All images at Gain 56, Offset 25 (Readout mode 1) and -5C sensor temperature

- 20 flats per filter

- Master Dark, Flat & Bias from Library

- Nights: 12/16, 12/18-12/20, 12/23-12/25, 12/27/22, 1/13/23

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Processing:

- WBPP for Calibration

- Blink to remove bad subs

- ImageIntegration for stacking

RGB Processing (apply to each master):

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- StarAlignment to align G and B to R

- ChannelCombination to combine to color image

- Duplicate image and ImageSolver to platesolve

- SpectroPhotometricColorCalibration on platesolved duplicate

- StarAlign both original and SPCC'd image to Luminance

- StarXterminator on original image to extract stars and save for later

- StarXterminator to create starless SPCC'd image

- HistogramTransformation x3 on SPCC'd image to stretch to non-linear

- NoiseXterminator on RGB image for noise reduction

Luminance processing:

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- StarXterminator to create starless and extract stars

- GeneralizedHyperbolicStretch for initial stretch

- HistogramTransformation x2 for further stretch

- NoiseXterminator for slight noise reduction

- UnsharpMask using RangeMask for sharpening of structures in nebula

Combine Luminance and RGB:

- LRGBCombination with saturation at 0.35

- HistogramTransformation for slight stretch

- CurvesTransformation for slight saturation boost

- MultiscaleMedianTransform for chrominance noise reduction

Add RGB Stars to Nebula and further processing:

- HistogramTransformation x3 to stretch RGB stars and then Luminance stars to approximately the same amount

- LRGBCombination to combine RGB and Luminance stars

- ColorSaturation for saturating blue stars

- PixelMath and HistogramTransformation to add RGB stars to Nebula image

- CurvesTransformation for color balancing

- Slight SCNR green

- NoiseXterminator for noise reduction

- DynamicCrop to remove edges

- Save and Export

Distance: ca.41 Mio. Lj

Constellation Canes Venatici

Equipment:

TS 10" f/4 ONTC Newton

1000mm f4

ZWO ASI 1600mmc

Astrodon LRGB

Skywatcher EQ8

Guding:

Lodestar on TS Optics - ultra short 9mm Off Axis Guider

PHD2

total exposure time: 3,7 hours

29x180 luminanz

15x180 red

15x180 green

15x180 blue

26/27.04.2020

Processing: PixInsight/Capture One

This image shows the tail of the constellation Cygnus (Swan) around the stars Deneb and Sadr.

The left side of the frame is dominated by the famous North America Nebula (NGC7000) and the Pelican Nebula (IC5070). The bright blue star is Deneb. It is the brightest known star in visible light. If it was as close to earth as Vega (25 light years), it would shine as bright as a crescent moon!

The right yellowish-white star on the right side is a supergiant named Sadr. Sadr is surrounded by the emission nebula IC1318 one of the several nebulous regions at the centre of Cygnus. IC 1318 is known as the Gamma Cygni Nebula, Sadr Region or the Butterfly Nebula. It is not physically related to Sadr, but merely lies in the same line of sight. The nebula is located much farther away than the star.

At the very edge of the frame on the right is the Crescent Nebula. The star responsible for the nebula’s shape and glow is the Wolf-Rayet star WR 136. The nebula is formed by the star’s fast, powerful stellar wind that collides with the slower wind ejected by the star about 250,000 years ago, when WR 136 expanded to become a red giant. The collision has produced a dense shell, which continues to expand at a speed of 80 km/s.

Prints available: ralf-rohner.pixels.com

EXIF

ZWO ASI 1600MM Pro, cooled astrocam

Canon EF 70-200mm f/2.8 L ll @ 70mm

Baader Hll & Olll ultra narrowband and RGB filters

Skywatcher AZ-GTI, equatorially mounted

ZWO ASI 385MC guide cam

Rig control with a ZWO ASIair

20 x 180s Hll

30 x 120s Olll

20 x 30s RGB

Explanation: Follow the handle of the Big Dipper away from the dipper's bowl, until you get to the handle's last bright star. Then, just slide your telescope a little south and west and you might find this stunning pair of interacting galaxies, the 51st entry in Charles Messier's famous catalog. Perhaps the original spiral nebula, the large galaxy with well defined spiral structure is also cataloged as NGC 5194. Its spiral arms and dust lanes clearly sweep in front of its companion galaxy (left), NGC 5195. The pair are about 31 million light-years distant and officially lie within the angular boundaries of the small constellation Canes Venatici. Though M51 looks faint and fuzzy to the human eye, the above long-exposure, deep-field image taken last month shows much of the faint complexity that actually surrounds the smaller galaxy. (Text from apod.nasa.gov/apod/ap090526.html)

This photo was taken for four nights in May and June 2013 in Crimea and Khlepcha observatory near Kiev, Ukraine.

Equipment: reflector S&D 10" f/4.7, Mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr-2. Off-axis guidecamera Orion SSAG.

LRGB filter set Baader Planetarium.

L=20*900 sec. bin.1 RGB: 10*900 sec. each channel, bin.1 Total exposure 12.5 hours.

North left.

Processed Pixinsight 1.8 and Photoshop CS6.

The **Eagle Nebula**, also known as **Messier 16 (M16)** or **NGC 6611**, is a stunning region of active star formation located about **7,000 light-years** from Earth in the **constellation Serpens**. It is best known for containing the **Pillars of Creation**, towering columns of gas and dust famously photographed by the **Hubble Space Telescope** in 1995.

This vast nebula spans about **70 by 55 light-years** and consists of **interstellar gas, dust, and young, hot stars** that illuminate and shape the surrounding material. The Eagle Nebula is a **stellar nursery**, where massive new stars are born from collapsing clouds of gas. These young stars emit intense ultraviolet light and powerful winds that sculpt the nebula’s features and erode the dense pillars from which they formed.

The "eagle" shape that gives the nebula its name is created by dark, silhouetted dust lanes against the bright background of glowing hydrogen gas. The Eagle Nebula is both a scientifically important object and a visually iconic one, offering astronomers insight into how stars and planetary systems form and evolve over time.

Shot in New Orleans, LA

Bortle 8 Skies

TEC140

AP900

SHO: 21 / 20 / 24 x15m

Total Integration = 16.25h

SXT/LF/SHO/NBNorm/NXT/NBStars/HT/Conv/Recreen

ColorEfex/Curves/Sat

☄️ Comète Leonard en approche 😱.

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J'étais obligé de la faire celle là ! J'ai tellement apprécié Neowise l'année dernière qu'il fallait que j'aille photographier la comète Leonard.

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Elle aura attendu le dernier mois de l'année pour pointer le bout de son nez . Mais quel spectacle encore !!

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Il est désormais possible de la voir à l'œil nu dans des bonnes conditions. Encore faut-il que la météo vous le permette. Et elle m'en a donné du fil à retordre la météo... Plus d'une semaine a check les nuages chaque nuit/aube parfois en mettant un réveil en pleine nuit (😂😭). Le ciel étant tellement couvert, il m'a fallu 2 sessions différentes pour accumuler assez de temps de pose. Un peu plus d'une heure d'expo au total pour ne garder que 35mn au final. Le pic de visibilité sera sans doute le 12 décembre mais aucune certitude si la météo me permettra de retourner shooter la comète une dernière fois.

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Comme l'année précédente, j'ai voulu trouver un spot fort de la région pour immortaliser ce moment. En cherchant une orientation Nord-Est, j'ai alors choisi le mémorial de Vimy qui s'est proposé à moi comme une évidence. C'est un lieu que j'aime particulièrement et que je n'avais pas encore photographié 🇨🇦.

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03/12/21 + 07/12/21 45x45sec iso 800 f/3.2 @ 135mm

The colorful Rho Ophichui cloud complex is one the closest star forming regions in our Milky Way and a favorite target for astrophotography. Highlighted by the bright star Antares, the region provides an impressive spectacle of colorful glowing gases, juxtaposed with converging dark rivers of thick dust.

IC 4604 (Rho Ophiuchi Nebula) is a large diffuse nebula of 5th magnitude located in the southwestern corner of the constellation Ophiuchus (Serpent Bearer), surrounding the bright multiple star system ρ (Rho) Ophiuchi. Several regions of bright and dark nebulosity surround the area, which takes its name from ρ Oph.

At the mid-northern lattitudes, I normally work from, it plays a bit hard to get, as it always rides close to the horizon and is only visible for a few hours during nights from spring to mid summer.

During my Namibia trip in 2023, I had the pleasure to shoot this wonderful area riding high in the unspoiled southern hemisphere sky.

EXIF

Canon EOS-Ra

Canon 70-200mm f/2.8 L IS USM ll @ 135mm

Equatoriallly mounted Skywatcher AZ-GTI

IDAS 12 filter

30x 90s @ ISO1600, unfiltered & 10x 180s @ ISO6400, filtered

Presenting an M31 Andromeda Galaxy “beginner equipment” side-project. I wanted to capture a deep space object with what is representative of relatively “beginner” equipment and modest exposure times as a sort of “you don’t need to spend heaps of money to make a good image” demonstration. And Andromeda seems like the perfect target for this sort of thing. Something I can share when people argue a basic camera can’t make a nice image, or get caught up feeling as though spending thousands of dollars is the right solution to solve frustrations they are encountering learning this challenging hobby.

As Ed Ting quipped (paraphrased), “You end up spending a lot of money to find out you didn’t need to spend a lot of money.”

Or maybe it’s mainly a “for better or for worse” reminder that experience, process, and (especially) post-processing knowledge and software are valuable parts of the formula. Expensive equipment does not offer an escape from this. Not to say the right sort of equipment (e.g. an interchangeable lens camera with a decent sensor and a tracking mount) doesn’t play a vital role in what is possible.

Hopefully this is helpful.

And in the spirit of this goal, I also spent some time documenting, in detail, the post-processing steps and thought process behind the edits involved. For this I used PixInsight and Adobe Photoshop.

Full Post-Processing Notes

tinyurl.com/JPAndromeda

www.astrobin.com/uld8ae/

Olympus E-M1 Mk.II M43 Camera

Olympus 40-150 f/2.8 Pro (150mm)

iOptron SkyGuider Pro

Vello Intervalometer

ASIAir Pro, ZWO 30mm Guide Scope, 2x ASI120MM (one as a dummy camera)

Lights RGB 100x90s ƒ/2.8 ISO1000

Calibrated with Darks, Flats, Flat Darks

Antelope Island, Utah, USA (Bortle 4)

Lights Hα 24x300s ISO3200

RedCat 51 & Astronomik 12nm Hα

I wanted to show that a color, stock sensor doesn’t mean Hydrogen-alpha can’t be accented. But had to use the RedCat 51 for this as, unlike a basic Canon DSLR, I don’t have a good means of using a Hydrogen-alpha filter with this Olympus.

www.starkeeper.it/NGC7822B.htm

Hot, young stars and cosmic pillars of gas and dust seem to crowd into NGC 7822. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. Within the nebula, bright edges and dark shapes stand out in this colorful skyscape. The image includes data from narrowband filters, mapping emission from atomic oxygen, hydrogen, and red,blue and green filters. The atomic emission is powered by energetic radiation from the central hot stars. Their powerful winds and radiation sculpt and erode the denser pillar shapes and clear out a characteristic cavity light-years across the center of the natal cloud. Stars could still be forming inside the pillars by gravitational collapse but as the pillars are eroded away, any forming stars will ultimately be cutoff from their reservoir of star stuff. This field of view spans over 40 light-years at the estimated distance of NGC 7822 [Text adapted from APOD]

Optics: Takahashi FSQ-106EDXIII F/5 530mm. - APO Refractor

Mount: AP Mach1 GTO

Camera: Moravian G4-16000 Mark II

Filters: Astrodon E Series Gen II LRGBH 50mm squared

Guiding Systems: SX Lodestar

Dates/Times: 2020-2021

Location: Pragelato - Turin / Italy

Exposure Details: H:R:G:B => 360:60:50:50 = > (24x15):(12x5):(10x5):(10x5) [num x minutes]

Cooling Details: -25 °C

Acquisition: Voyager Astrophotography Automation

Processing: CCDStack2+, PS CC, StarXTerminator

Mean FWHM: 1.21 / 2.05

SQM-L: 20.21

✌️ "V" zodiacal et arche hivernale ✨.

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Au-revoir à Orion et son ciel d'hiver qui nous quittent en ce mois d'Avril. On se retrouve en Octobre pour de nouvelles astrophotos . Je n'ai malheureusement pas pu trop en profiter d'une part à cause de la météo et d'autre part à cause d'un autre projet photo qui me prend beaucoup de temps 👀.

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🆑 Ici, c'est un peu mon Chili à moi 😂. Probablement un des meilleurs ciels de notre région (disons plutôt le moins pire). Il me faut environ 1h15 de route de la maison pour profiter de ce ciel assez correct. Situé au fin fond du Pas-de-Calais, cet endroit est classé dans une zone Bortle 4 (proche Bortle 3). La meilleure valeur de la qualité de ciel que j'ai pu mesurer ici au SQM (Sky Quality Meter) est de 21.47. Le maximum étant 22.00, il correspond aux endroits sur Terre où le ciel est le plus pur, sans aucune pollution lumineuse. Cette différence entre les 2 valeurs paraît minime mais elle est en fait énorme et la différence sur la pureté du ciel l'est tout autant.

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🔭 Alors certes je n'ai pas la puissance des télescopes du désert chilien mais j'essaye de me débrouiller avec mon Newton 250/1000 . C'est un petit parallèle avec les moyens du bord comparé aux énormes observatoires qui sont là-bas. On voit beaucoup d'arches galactiques au-dessus des immenses coupoles, je voulais mettre à mon tour en valeur la bête . J'avais cette compo en tête du backstage : un "V" formé sous l'arche de la Voie Lactée. La cible ce soir-là était la galaxie M51, le post arrive bientôt. On peut observer de gauche à droite : le complexe d'Orion, la Voie Lactée, la lumière zodiacale, la galaxie d'Andromède et bien d'autres nébuleuses en H-alpha.

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EXIF :

-@canonfrance EOS R astro mod by a-m.de

-@sigmafrance ART 24mm f/1.4 DG HSM

-@skywatcherusa Star Adventurer GTi

-Ciel : pano de 12 tuiles 1*30s f/2.2 ISO 1250 suivi

-Sol : pano de 6 tuiles 1*75s f/3.2 ISO 3200 non suivi

www.astrobin.com/unoexu/

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• Sky-Watcher Quattro 250P

• Sky-Watcher EQ8-R Pro

• ZWO ASI294MM-Pro

• Astronomik L: 27x300s bin1 gain 0

• Astronomik RGB: 30x300s bin2 gain 125

• ZWO Hα 7nm: 41x600s bin1 gain 200

• ZWO Hα 7nm: 13x300s bin1 gain 200

• ZWO OIII 7nm: 4x600s bin2 gain 200

• ZWO OIII 7nm: 36x300s bin2 gain 200

(total integration 16.3h)

• ZWO OAG & ASI290Mini guide cam

• TS GPU coma corrector

• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2

Trevinca, Valding, Spain

Bortle 3, SQM 21.8

processed with Pixinsight

La saison d'Orion est bientôt terminée, la Voie Lactée commence à se lever tôt le matin mais j'ai encore quelques clichés du ciel d'hiver à vous partager !

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C'était surement la plus grosse sortie de cet hiver avec @remi.aug . Pas moins de 5 projets photos que j'avais en tête ont étés réalisés. Une nuit qui aura été bien prolifique avec des conditions exceptionnelles du début à la fin.

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Un cliché pensé depuis des mois et des mois et qui m'a rendu la vie un peu difficile au traitement. Ce n'est pourtant pas le projet le plus compliqué que j'ai pu faire lors de cette soirée. La météo m'a clairement empêché de le faire plus tôt dans l'année mais une fois les tempêtes Eunice et Franklin passées, le beau temps est revenu !

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Vous pouvez admirer les principales nébuleuses en Hydrogène (rouge) qui accompagnent notre ciel d'hiver. L'hexagone d'hiver se dessine au centre de l'image, il est formé par 6 étoiles brillantes et permet de connaître le positionnement de la Voie Lactée car elle passe en son centre.

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La Voie Lactée est bien visible au dessus de la mer, c'est grâce à l'absence de pollution lumineuse. On peut quand même remarquer l'énorme pollution de Boulogne-sur-Mer à gauche, quelques villes très éloignées mais avec une pollution lumineuse quand même visible (Le Tréport, Dieppe, etc...), quelques bateaux et sur la droite de l'image, les premières villes des côtes anglaises.

After many months of clouds, wind and/or extreme temperatures, we finally completed this winter target. Imaged from late February to late March as conditions allowed.

The HII region, Sh 2-261, is often called Lower's nebula because it appears on a photographic plate taken by the father-and-son team of Harold and Charles Lower in 1939.

Image captured over 5 nights; 2022-02-25, 2022-03-06, 21, 24 & 29

15 hours 40 minutes total integration

Ha subs 23 * 1,200 sec = 7 hours 40 min

OIII subs 9 * 1,200 sec = 3 hours

SII subs 15 * 1,200 sec = 5 hours

Imaging Equipment:

SharpStar 140PH Triplet 910mm focal length

Mesu 200 MKII mount,

ZWOASI2600MM Pro camera

SHO 3.0nm filters