The brightest bit of the Large Magellanic Cloud, the Tarantula Nebula! Although it has been in other shots I have taken, this is the longest focal length and best detail I have done! Shot over 2 partial nights (from about 1.40am!) in Hawker and Bendelby, South Australia. Askar 130PHQ telescope, QHY 268M camera, Astronomik RGB filters and an Optolong L-Para dual narrowband filter used as luminance, Warp Astron WD-20 EQ mount, NINA camera control, APP and PS processing.

Oahu, Hawaii

Not much sleep, but I got to view our galactic core this morning...oh, so worth it!

Single image using an Optolong L-Pro filter...sorry about the coma.

Telescopio: Takahashi Mewlon 210 mm

Lunghezza focale: 2415 mm

Camere di ripresa: ZWO ASI 174 mono Cooled

Montatura: iOptron CEM60

Filtri: Optolong Red CCD 50,8 mm

Focuser Primalucelab Esatto 2"

Data: 17 Agosto 2021 Ore: 20:47 Tempo Locale

Pose: 400 sommate su 1.000 riprese a 95 fotogrammi al secondo

Seeing: 2 Trasparenza: 8

Sh2-155 grayscale

Optics: Sharpstar SCA260 f/5 1300mm

Camera: Player One Zeus455 Mono

Filters

Blue: Optolong

Green: Optolong

Ha: Optolong (3nm)

Luminance: Optolong

OIII: Optolong (3nm)

Red: Optolong

SII: Optolong (3nm)

31h of data, integration in PixInsight done:

Blue: 17x180 sec

Green:17x180 sec

Ha: 58x600 sec

OIII: 59x600 sec

Red:17x180 sec

SII: 54x600 sec

starbase.insightobservatory.com/home

Calibration

Center (RA, Dec):(344.176, 62.544)

Center (RA, hms):22h 56m 42.146s

Center (Dec, dms):+62° 32' 36.669"

Size:69.3 x 53.8 arcmin

Radius:0.731 deg

Pixel scale:0.315 arcsec/pixel

nova.astrometry.net/user_images/11470795#annotated

First summer #milkyway arch of the season (southern hemisphere)! While I’d planned to capture this earlier, time and conditions weren’t on my side—until now.

This shoot was a race against the clock: nightfall began at 9:05 PM, and the moon rose at 10:47 PM, giving me just 1 hour and 42 minutes to frame and shoot 55 long-exposure images for this panorama at 24mm focal length (37mm full-frame equivalent). By keeping exposures to 20 seconds, I managed to nail the pano and even grab two more shots from different angles.

The location? Wanagarren Nature Reserve, a sprawling field of grass trees, recently scorched by a massive bushfire. These resilient beauties stand strong against the harshest conditions—even fire. Nature’s true survivors!

Gear: Nikon D5500 (modded) for the sky, Nikon D5200 for the ground - 24mm f/1.4 - Star Adventurer 2i Pro - Hoya UV/IR cut - Optolong Ha 7nm

Sky: 37 RGB x 20s at f/2.2, 32 Ha x 60s at f/1.4, 24mm

Ground: 18 x 2s, 24mm at f/10

Same data as last image, but reprocessed and cropped.

SKYWATCHER ED80, QHY163M - Optolong LRGB, 5min luminance x nearly 2hrs total luminance, with 2min RGB x approx 6 each filter.

Shooting a few frames here and there adding to the luminance data.

NGC 2024 Flame Nebula

TS 115/800

ZWO ASI 1600 MM

HALRGB (200-200-60-30-40)

Subs 5 minutes

Total: 530 Minutes

DSS + PixInsight + PS6

Astrodon Filters LRGB

Optolong Filter HALPHA

NGC 6992.

Heq5 + Askar 65PHQ+ASI533 MC Pro+Optolong L-Ultimate.

63x300sek

Contains open cluster M52, several Sharpless Catalogue items.

61mm Refractor @ FL 363mm

ZWO 183MC Pro

Optolong L-Ultimate filter

Messier 16 version Starsless.

A voir...

Megrez 72 + ASI1600MC + L-Extreme Optolong. 10x240s. Traitement SIRIL.

Telescope: WO ZenithStar 81 Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-Extreme Filters

Site: Elk Grove, California, USA

Calibration Files: None

Guiding: ZWO ASI 174mm mini/Orion 60mm Guidescope/PHD2

No of Frames: 68

Sub Exposure Time: 180sec

Integration Time:3h 24m

Bortle Zone: Class 6

Date Taken: Feb 23, 2022

Located in the monoceros constellation, it can be thought as a rose resting on the head of the unicorn. I have always been fascinated by how this nebula evokes the shape of a flower with the intensity of a storm inside.

Tecnhical information

Canon 400mm f/5,6 lens @ f/5.6

ZWO ASI183MC pro camera

Skywatcher Star adventurer 2i tracking mount

Guided with the ASI120MM mini

600x60s at Gain 111

Optolong l-extreme filter

Processing was done in Affinity photo, Siril, Lightroom Classic and VanceAI denoiser.

The Rosette Nebula is an H II region located in the constellation of Monoceros. The stars of the open cluster NGC 2244, within the nebula, have been formed from the nebula's matter. It lies at a distance of around 5,000 light years. Imaged over 2 nights in February 2025.

HEQ5 PRO

RedCat51 WIFD

QHY183C Gain 21 Offset 76 -20C

Optolong L-eNhance filter

16 x 900sec subs

Processed using Pixinsight and Photoshop 6.

M51 Ripresa in 3 tempi

Inus Siris Sardegna 26 02 22

Dal giardino di casa Mogoro Sardegna il 28 02 e 01 03 22

M 51 è un oggetto astronomico del catalogo di Messier che comprende due galassie distinte, nella costellazione boreale dei Cani da Caccia: La più grande e famosa Galassia Vortice è una classica galassia a spirale. Fu scoperta da Charles Messier il 13 ottobre del 1773. (Wikipedia)

Distanza dalla Terra: 23.160.000 anni luce

Raggio: 30.000 anni luce

Stelle: 100 miliardi

Caratteristiche rilevanti: Composto da due galassie interagenti, NGC 5194 (Galassia Vortice) e NGC 5195

Riprese dì Giànni Melis

9,5 ore dì integrazione

191 light x 180 gain 120

31 dark

49 bias

30 flat

C11 ridotto x 0,63 su EQ6 R PRO ASI533 Mc filtro Optolong L pro

Guida 60/240 Asi 224 Mc

Asi air pro , Pixinsite Ps

Hi guys, here 51 hrs of NGC3293 region.

Telescope: SharpStar 150 f2,8

Guide Scope:Evoguide

Mount : Skywatcher HEQ5

Imaging camera: ZWO 2600MC

Guiding camera: ZWO 290 MC

Filters: NBZ Idas,Optolong Lpro

Plate solving: SGpro

Imaging software: Sgpro

Guiding software: PHD2

Processing software: Pixinsight

NBZ: 258X600s exposure@100 Gain

Lpro:48X600s exposure@ 0 Gain

Integration: 51hrs

one of my projects for the upcoming weeks, and you can see parts of the other one (IC410) on the right.

both nights where i shoot this DSO were windy and occasional clouds were moving in, resulting in 4h exposure time with my optolong dual narrowband filter. unfortunately, no clear sky was left for at least 2h RGB, and as the moon is getting brighter every night this will have to wait at least two weeks.

camera: Canon 50Da

telescope: Skywatcher Esprit ED80

mount: Skywatcher HEQ5Pro

guiding: 50/180 scope with ToupTek224 cam and PHD2

48x300sec ISO1600 with Optolong L-enhance dual narrowband filter

calibrated with flats, darks, bias and darkflats (20 each)

total exposure 4h00m, processed in APP, Photoshop and Lightroom

shot under a bortle 5+ sky at an average 20% waxing moon

SpaceCat 51

Canon 6d rango completo

Optolong LEnhance

algo más de 3 horas en fotos de 600" y 1500" a ISO 3200

Procesado PIX y PS

bortle 3

Went out Monday night, IC5070, IC405 and M42&M43

Orion 80mm ED refractor, Zwo 294MC Pro cooled color camera, Used an electronic focuser, Nice to have!!

Optolong L eNhance filter

#SharpCap Pro, PoleMaster

Ioptron i45 Pro EQ mount, PHD2 guiding

Orion 60mm guidescope SSAG

220 Gain offset 10 -10c cooling,

IC5070 was 90 minutes, 1 minute exposure each

IC405 was 90 minutes, 1 minute exposure each

M42&M43 was 55 minutes, 1 minute exposure each

Weather was good, Getting cooler too with some dew forming.... High thin clouds trying to cover up M42

75 darks 100 flats and 75 bias frames

Astro Pixel Processor and PS

Telescopio: Celestron C8 Edge HD

Lunghezza focale: 2032 mm

Montatura: iOptron CEM60

Filtri: Optolong Blue CCD 50,8 mm

Data: 24 Aprile 2021 Ore: 21:09 Tempo Locale

Pose: 500 sommate su 2.008 riprese a 164 fotogrammi al secondo

Seeing: 3 Trasparenza: 8

Seeing 3 Antoniadi, trasparenza del cielo 8

The Jellyfish nebula is a cloud of gas left over from a supernova explosion more than thousands of years ago. It is 5000ly from Earth.

ASI294MC PRO , AT80LE @ f/4.8, CGEM

Optolong L-eNhance Dual-Bandpass Filter

3h 35m total exposure 5m subs

From the red zone backyard

M51

232 X5 19H30

Caméra 2600MC 88X5

Caméra 294MC 144X5

TAKAHASHI 120 TSA

Caméra guide 290mm

evoguide 50mm

Filtre optolong L

Eaf zwo

Asiair V1

Traitement pixinsight 99% 1% ps

ccd: Moravian G3-16200 with EFW + OAG

filters: Optolong LRGB and Astrodon 5-nm Ha/O3

telescope: FSQ 106N f/5

mount: 10Micron GM2000 QCI

guider: Lodestar X2

exposure: L 30x10min + RGB 20x5min + RGB 12x1min + Ha 15x30min (all 1x1)

location: Les Granges, 900 m (Hautes Alpes, France)

software: TheSkyX Pro, CCD Commander, Pixinsight, PS CC

date: 1 - 29 Oct 2019

Hello folks here Dolphin_Nebula

Telescope:FRA600

Reducer:0.7

Guide Scope:N/A

Mount : 10 Micron GM2000

Imaging camera: ZWO 2600MM

Guiding camera: N/A

Filters: Optolong filter set RGB/Ha/OIII

Plate solving: N/A

Imaging software: Sgpro

Guiding software: N/A

Processing software: Pixinsight

Exposures:

40 x 600 second H filter

56 X 600 second O filter

20 x 180 second R

20 x 180 second G

20 x 180 second B

Data acquisition:Manuel Marquez

Processed by me.

The data for this image was collected over several nights and combined to increase the signal-to-noise ratio. For the luminance channel, a narrowband H-alpha filter was used. H-alpha corresponds to the emission of ionized hydrogen – the most abundant element in the universe – and allows for capturing fine structural details of nebulae. This technique also effectively suppresses light pollution, including city lights and even moonlight.

The H-alpha data was captured from my backyard under suburban skies, while the RGB color data was collected during a separate session in the High Black Forest (Hochschwarzwald), under much darker conditions. Without this RGB component, the result would be a false-color image lacking natural color tones.

🔧 Technical Details (Astrophotography Setup):

🔭 Telescope: 5-element Flatfield APO, 520 mm – true color, perfect field correction

🔎 Focal Length: 520 mm

🌙 Optics: Integrated corrector and flattener

🎯 Guiding: M-GEN autoguider (precision ±0.01 px)

🔭 Guide Scope: Dedicated scope for tracking the guide star (paired with M-GEN)

️ Mount: HEQ mount (resolution: 9,024,000 microsteps/rev)

Control: SynScan / SkyScan – computerized GOTO and alignment system

Finderscope: Red dot finder for rough target acquisition

🔥 Dew Control: Heating bands on main optics and guide scope

There is so much going on in this wide field of view on the border of Cassiopeia and Cepheus that it is hard to know where to start! The largest object is The Lobster Claw Nebula (Sh2-157) in the upper right quadrant, with the small cluster, NGC 7510, above and to its left. The small bright nebula in the upper left is NGC 7538. In the middle lower portion of the image is a very small looking Bubble Nebula (NGC 7635). Finally the open cluster M52 (NGC 7654) is glistening in the lower left corner.

The northern section of the Lobster Claw Nebula has a ring shape due to the stellar wind of several giant stars. The southern section is illuminated because of excited particles caused by light radiation from stars with a spectral type O. Inside this nebula there is a very young star cluster, this is the latest generation of a process of star formation.

The open cluster NGC 7510 lies on the boundary of Cepheus and Cassiopeia. It is estimated to be 10 million years old and the light from the cluster has undergone partial extinction by interstellar gas and dust.

The nebula NGC 7538 also lies within this region of the sky. It is home to the biggest yet discovered protostar which is about 300 times the size of the Solar System. It is an active site of star formation and home to several luminous near-infrared and far-infrared sources.

The Bubble Nebula, NGC 7635, is a star surrounded by a giant molecular cloud. The Bubble is illuminated by the star’s intense ultraviolet radiation and is still growing due to the constant pressure of stellar wind.

The open cluster M52 has an apparent magnitude of 5.0 with its brightest star having a magnitude of 11. It is a compressed star cluster populated by many faint stars.

Equipment used

EQ6R Pro mount

William Optics GT81V and .8 reducer

Asi 2600MC cooled to -10c

Optolong L Extreme Filter

ASIAIR Pro

120mm guide scope and mini camera

Zwo EAF

Processed in Pixinsight

6 hours of 600 second exposures

Con la focale di 1260mm non potevo non puntare il mio telescopio verso la bella e luminosa "nebulosa planetaria" M27, denominata "Nebulosa Manubrio", catalogata anche con la sigla NGC 6853 e che si trova nella costellazione della Volpetta . La sua denominazione "artistica" è dovuta alla sua caratteristica forma nelle osservazioni visuali e foto. Ultimamente grazie ai nuovi sensori più performanti le foto si sono arricchite di altre nebulosità più deboli quasi a formare 2 ali di farfalla.

Il cuore della nebulosa è molto luminoso, al contrario delle parti più esterne che secondo me avevano bisogno di altra integrazione. Non è stato semplice estrapolare le "ali" dal fondo cielo, evidenziando per contro un discreto rumore, che sono riuscito a ridurre grazie anche ai recenti Python scripts di Siril 1.4.0 Graxpert e Cosmic Clarity.

__________

With a focal length of 1260mm, I couldn't help but point my telescope at the beautiful and bright "planetary nebula" M27, known as the "Dumbbell Nebula", also cataloged as NGC 6853 and located in the constellation Vulpecula. Its "artistic" name is due to its distinctive shape in visual and photographic observations. Recently, thanks to new, higher-performance sensors, the photos have been enriched with other, fainter nebulae that almost resemble two butterfly wings.

The heart of the nebula is very bright, unlike the outer parts, which in my opinion needed further integration. It wasn't easy to extract the "wings" from the background sky, revealing a fair amount of noise, which I was able to reduce thanks to the recent Python scripts from Siril 1.4.0: Graxpert and Cosmic Clarity.

________________

Optic: Celestron SC C8 203mm f/10+ Celestron riducer-corrector 0.63X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5-Pro

Seeing: 3-4 (scala Antoniadi)

Filter: Narrowband Optolong L-eNhance 2" + SVbony UV-IR cut

-158x180s 250gain/ 25 dark /23 flat / 23 darkflat /80 bias

t° sensor: -5°C

Date: 01-03/08/2025

Integration: 7h 54m

Temperature: 24°C (media)

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

Acquisition: NINA, PHDGuiding

Processing: DSS, SIRIL, PS, GraXpert

Nouveau traitement V5.

Sky: Class 8 Bortle.

Lights: Total 3H

36x300s Optolong L-Extreme

DOF: 20x

Prétraitement: Siril

Traitement: PixInsight / EZ Processing Suite / PS / DxO PhotoLab

Canon 450D Défiltré

Skywatcher 80ED Equinox (80x500)

Télévue TV85 Field Flatteneur 0.8x

Skywatcher Neq6 Pro

Guide Scope: Zwo 30mm F/4

Guide Cam: Zwo Asi120MM

Guide Soft: Phd2 on Rpi

Heart Nebula with Melotte 15

45 x 600s

ASI 2600 MC Pro

Skywatcher 150/750 PDS

Optolong L-Extreme 2"

Asiair Pro

Zwo OAG

ASI 120 Mini

A different view of Carinae

Telescope Service 115/800

TS Flattener/Reducer 0.80

ZWO ASI 1600 MMPRO

ZWO FW 8x1.25

SHO filter Optolong

Frames:

SII: 60 x 300

OIII: 60 x 300

Halpha: 60 x 300

Total: 15 hours

DSS + Pixinsight + PS6

The Face in Space - Sh 2-173

90x600s

Asi 2600 MC Pro

150/750 PDS

Asiair Pro

Optolong L-Extreme 2"

A questa bellissima nebulosa diffusa non ho potuto dedicare il tempo che meritava anche perchè il suo piccolo diametro apparente necessitava di focali medio-alte. Dopo i risultati ottenuti su "M16" e "M20" ho puntato il mio C8 su questo target, la "Nebulosa Crescente", conosciuta anche con le sigle "NGC 6888" e C27.

E' un esempio di bolla di vento stellare. La nebulosa è stata generata da un particolare tipo di stella massiccia, la WR136 (una "stella di Wolf-Rayet", caratterizzata da espulsione di enormi quantità di materia con forti e veloci venti stellari) dopo la sua evoluzione in gigante rossa e ciò ha dato origine alla sua forma particolarissima.

Le 9h e 36m di integrazione mi hanno permesso, dopo tanti tentativi falliti, di evidenziare la nebulosità azzurra con emissione di O3 molto debole rispetto all'emissione Halfa. Molto bello anche il tappeto di idrogeno Halfa di cui è ricca quella parte della Via Lattea nela costellazione del Cigno.

Non so voi ma io sono soddisfatto del risultato.

___________

I couldn't devote the time it deserved to this beautiful diffuse nebula, partly because its small apparent diameter required medium-long focal lengths. After the results obtained on "M16" and "M20", I pointed my C8 at this target, the "Crescent Nebula", also known by the acronyms "NGC 6888" and C27.

It is an example of a stellar wind bubble. The nebula was generated by a particular type of massive star, WR136 (a "Wolf-Rayet star," characterized by the expulsion of enormous quantities of material with strong, fast stellar winds) after its evolution into a red giant, which gave rise to its very particular shape.

The 9 hours and 36 minutes of integration allowed me, after many failed attempts, to highlight the blue nebulosity with very weak O3 emission compared to the Halfa emission. The Halfa hydrogen carpet, which is abundant in that part of the Milky Way in the constellation Cygnus, is also very beautiful.

I don't know about you, but I'm satisfied with the result.

________________

Optic: Celestron SC C8 203mm f/10+ Celestron riducer-corrector 0.63X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5-Pro

Seeing: 3-4 (scala Antoniadi)

Filter: Narrowband Optolong L-eNhance 2" + SVbony UV-IR cut

-192x180s 250gain/ 25 dark /23 flat / 23 darkflat /80 bias

t° sensor: -5°C

Date: 22-23-25-27/07/2025

Integration: 9h 36m

Temperature: 22°C (media)

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

Acquisition: NINA, PHDGuiding

Processing: DSS, SIRIL, PS, GraXpert

Weitfeldaufnahme

Objektiv: Sigma 135/f1,8

Kamera: Nikon Z6II

Nachführung: Skywatcher Adventurer GTI

Filter: Optolong L-eXtreme NK-Z

Version LHaRVB.

100x180s (5h) - Filtre Idas LPS D1 - gain 120, -10°C - ciel Bortle 4.

80x300s (6h40) - Filtre Optolong L-Extreme - gain 120, -10°C - ciel Bortle 7.

Lunette TS triplet 80x480.

Réducteur TS x0.79.

Monture HEQ5 pro goto modifiée.

Caméra ZWO ASI294mc pro.

Guidage chercheur SW 9x50 + ASI120mm mini.

Asiair pro.

Pixinsight, PS.

Cometa C/2025 A6 Lemmon

26 ottobre 2025 ore 17.45 u.t.

Località: San Romualdo - Ravenna

Rifrattore Apo Tecnosky AG70 F/5

Avalon M-Zero - Nessuna autoguida

QHY294C Raffreddata -0 - Eagle5

Filtro Optolong L-Pro - 44x30sec

Acquisizione: Astroart9 - Calibrata con Bias e Flat

Elaborazione: Astroart9, StarTools1.9, Affinity photo2 e Paint Shop Pro2023.

www.cfm2004.altervista.org/astrofotografia/comete/c2025a6...

Our sky is so beautiful at night. You will have a marvellous feeling when you realise that we are covered by a black blanket with billion of stars shining through darkness like diamonds,and you will feel that, you are so tiny in this universe. Gear setup: ZWO 2400MC @ 0, Sigma 14-24mm @ 20mm f/2.8, iOptron Sky Guider pro, Optolong CLS Filter, ASIAir. Sky: 20 x 180 sec, Darks 20, Bias 50. Foreground: 20 x 20 sec.

5hrs of integration, 5min subs under bottle 6 skies. Scope Askar fra400, camera ZWO asi2600 my pro, filter Optolong Lenhance.

Ha and O3 extracted with Astropixel processor, combined and stretched in Adobe Photoshop.

Valentines Day is fast approaching so here is the Heart Nebula from the backyard! Light pollution filters cut through the stray light allowing smaller wavelengths of light to pass through them on to the sensor.

Camera: ASI2600MC-Pro

Telescope: Zenithstar 61

Aperture: f5.6

Mount: CEM70EC

Filter: Optolong L-eNhance

Frames: 73X180sec

Gain: 100 Offset: 10

OAT: 10°C

Camera Temp: -15°C

Guiding: ASI290MC

Darks: 30 frames

Flats: 50 frames

Post Processing: PixInsight, PS,

Telescopio: APM 140 mm f 7 APO

Televue Powermate 4X 50,8 mm

Lunghezza focale: 3920 mm

Camera di ripresa: ZWO ASI 462 MC

Montatura: iOptron CEM60

Filtro: Optolong IR-CUT 50,8 mm

Focuser Feather Touch Starlight 3,5"

Data: 30 Settembre 2021 Ore: 21:49 Tempo Locale

Pose: 3450 sommate su 15.000 riprese a 212 fotogrammi al secondo

Seeing: 3 Antoniadi Trasparenza del cielo: 6

Jellyfish Nebula IC443/444, Gemini, taken with Askar 65PHQ, ZWO ASI 2600mc, ZWO ASI AM5, 40x600", Optolong L-Ultimate, from Aosta Valley Western Alps.

EDIT [FR] : il s'agit là de la partie RGB de la photo déjà présentée en mai. La description ci-dessous est identique mais il faut y retrancher toute la partie HOO. Cette photo a en outre bébéficié de l'aide au traitement via BlurX de mon ami Damien Guillard, excellent astrophotographe (bien qu'il néglige parfois ses filés d'étoiles ;))

EDIT [EN]: This is the RGB part of the photo already presented in May. The description below is identical but should exclude all the HOO processing. Additionally, this photo benefited from processing assistance using BlurX from my friend Damien Guillard, an excellent astrophotographer (although he sometimes overlooks his star trails ;)).

-------

[Version française en haut / English version below]

[FR]

A l'occasion d'un passage dans la famille dans le sud, j'ai profité de 3 nuits très claires dans le sud de la France pour me faire un bivouac astro en haut du Gros Cerveau au dessus de Sanary sur Mer et imager la nébuleuse de la trompe d'éléphant que je n'avais jamais faite. Cette nébuleuse se trouve dans la constellation de Cephée, bien observable (en astrophotographie seulement) dans le ciel d'été car montant dans le ciel en début de nuit. J'ai fait 2 sessions en RVB et une en HOO (filtre optolong L-Enhance). La photo présentée ici est une photo cumulant 14h38 d'exposition. Les détails concernant la photographie sont donnés plus bas (EXIFs).

Anecdote : le seul soir où je n'y suis pas allé, le vendredi 10/05/24, soirée à rallonge que j'ai passé avec des amis, c'est le seul soir où il y a eu d'importantes aurores boréales ... que je n'ai donc pas vues ! Le lendemain soir (le samedi 11/05) quand je suis retourné en haut de la montagne déserte l'avant veille, les gens se pressaient pour aller observer les aurores boréales qui ... n'ont pas montré le bout de leur nez cette nuit là. Mais plusieurs en ont profité pour passer une soirée avec moi qui ai pris plaisir à faire les présentations avec les nébuleuses et autres amas visibles ce soir là en leur permettant de belles observations avec mes jumelles.

* Description de la photo :

Sur la photo apparaissent 2 grandes nébuleuses lumineuses et des nébuleuses sombres. L'astrométrie donnée ici (nova.astrometry.net/annotated_full/10666855) répertorie d'autres objets d'intérêt.

- IC 1396 (Nébuleuse de la trompe d'éléphant). C'est la grande nébuleuse sur la droite de la photo. IC 1396 qui ressemble un peu à la nébuleuse de la rosette contient également un amas en son centre. C'est une nébuleuse en émission située à environ 2400 années lumières (AL) de nous. Elle porte son nom à cause d'une nébuleuse sombre bien visible à droite de son centre sur la photo, nébuleuse sombre qui comporte un globule nébuleux en son centre, lieu d'acite formation d'étoiles. L'étoile très visible en haut de la nébuleuse et qui éclaire celle-ci est nommée Etoile Grenat ou Erakis ; il s'agit de mu-Cephei. C'est une étoile variable pulsante dans un système double.

- SH 2-132 / LBN 473 (Nébuleuse du lion) et LDN 1150 et 1154. Cette nébuleuse est produite par l'ionisation de gaz par 2 étoiles très chaudes, étoiles de Wolf-Rayet HD 211564 et HD 211853. elle est distante de 10400 années lumières donc bien plus loin qu'IC 1396. A la droite de la nébuleuse, on voit 2 zones plus foncées. Il s'agit de LDN 1150 et LDN 1154, 2 nébuleuses obscures (des nuages de poussières interstellaires).

- zeta-Cephei, LBN 479 et LBN 474. En haut de la photo, il y a une étoile très brillante entourée à gauche et à droite de 2 nébuleuses de faible intensité. L'étoile est zeta-Cephei, une supergéante rouge dans un système binaire à eclipses située à 840 AL de nous. A gauche se trouve LBN 479 et à droite LBN 474, 2 nuages d'hydrogène éclairé et ionisé par zeta-Cephei.

- B174 / LDN 1165. A droite de zeta-cephei, au dessus d'IC 1396, on observe une grande région marbrée de nébuleuses obscures. Je ne vais pas donner tous leurs noms. La plus grande est B174.

- Kruger 60. L'objet répertorié sous ce nom dans l'astrométerie (voie le lien plus haut) est une étoile double de magnitude 9.8. Il s'agit d'un couple d'étoiles naines rouges très proches puisqu'elles sont distantes en moyenne de 9.5 unités astronomiques (9.5 x 150 millions de km), soit la distance Soleil-Saturne, distance variant de 5.5 UA à 13.5 UA.

- IC 1442, NGC 7245, NGC 7226, NGC 7175, NGC 7234, NGC 7261, NGC 7281. Tous ces objets sont des amas ouverts.

* Matériel :

- Canon EOX 1200 D défiltré partiel (IRPhotomax)

- Samyang 135 mm f/2 @ f/2.8

- Star Adventurer 2i

* Conditions : ciel très clair, lune absente le premier soir, nouvelle les autres soirs, mais prise de vue au coucher du soleil peu au dessus de l'horizon, donc gradient important.

* EXIFs :

- 272+269 (2 nuits) brutes de 60s (soit 4h40+4h29) sans filtre (traitement RVB) + 286 brutes de 90s (soit 5h29) avec filtre L-Enhance (traitement HOO)

- 800 iso

- 60 darks 60s et 45 darks 90s, 3 séries de 40 flats (1 par nuit), 40 offsets.

* Traitement : Siril puis post-traitement GIMP

----------------------

[EN]

During a visit to my family in the south, I took advantage of three very clear nights in the south of France to set up an astro-bivouac on top of Gros Cerveau above Sanary-sur-Mer and image the Elephant Trunk Nebula, which I had never photographed before. This nebula is located in the constellation Cepheus, and is well observable (in astrophotography only) in the summer sky as it rises early in the night. I had two RGB sessions and one HOO session (with an Optolong L-Enhance filter). The photo presented here is a compilation of 14 hours and 38 minutes of exposure. The details regarding the photograph are provided below (EXIFs).

Anecdote: The only evening I didn’t go up, Friday, May 10, 2024, I spent a long evening with friends. It was the only night with significant auroras... which I did not see! The next evening (Saturday, May 11) when I returned to the deserted mountain top from the previous night, people were rushing to observe the auroras which... did not show up that night. But several people took the opportunity to spend an evening with me, and I enjoyed introducing them to the nebulae and other clusters visible that night, allowing them to make some beautiful observations with my binoculars.

* Description of the photo:

In the photo, two large luminous nebulae and dark nebulae are visible. The astrometry provided here (nova.astrometry.net/annotated_full/10666855) lists other objects of interest.

- IC 1396 (Elephant Trunk Nebula): This is the large nebula on the right side of the photo. IC 1396, which resembles the Rosette Nebula, also contains a cluster at its center. It is an emission nebula located about 2400 light-years (LY) away. It is named after a dark nebula, clearly visible to the right of its center in the photo, which contains a nebular globule, an active star formation region. The very visible star at the top of the nebula that illuminates it is named the Garnet Star or Erakis; it is mu-Cephei, a pulsating variable star in a double system.

- SH 2-132 / LBN 473 (Lion Nebula) and LDN 1150 and 1154: This nebula is produced by the ionization of gas by two very hot stars, Wolf-Rayet stars HD 211564 and HD 211853. It is located 10,400 light-years away, much farther than IC 1396. To the right of the nebula, two darker regions are visible. These are LDN 1150 and LDN 1154, two dark nebulae (clouds of interstellar dust).

- Zeta-Cephei, LBN 479, and LBN 474: At the top of the photo, there is a very bright star surrounded on the left and right by two faint nebulae. The star is Zeta-Cephei, a red supergiant in an eclipsing binary system located 840 LY away. To the left is LBN 479 and to the right is LBN 474, two clouds of ionized hydrogen lit by Zeta-Cephei.

- B174 / LDN 1165: To the right of Zeta-Cephei, above IC 1396, a large region marbled with dark nebulae is visible. I won’t name them all, but the largest is B174.

- Kruger 60: Listed in the astrometry as Kruger 60, this object is a double star of magnitude 9.8. It is a pair of red dwarf stars very close to each other, with an average distance of 9.5 astronomical units (AU), equivalent to the distance from the Sun to Saturn, varying from 5.5 AU to 13.5 AU.

- IC 1442, NGC 7245, NGC 7226, NGC 7175, NGC 7234, NGC 7261, NGC 7281: All these objects are open clusters.

* Equipment:

- Canon EOX 1200D (partially modified by IRPhotomax)

- Samyang 135mm f/2 @ f/2.8

- Star Adventurer 2i

* Conditions:

Very clear sky, no moon on the first night, new moon on the other nights, but shooting at sunset just above the horizon, creating a significant gradient.

* EXIFs:

- 272+269 (2 nights) raw images of 60s each (4h40+4h29) without a filter (RGB processing) + 286 raw images of 90s each (5h29) with L-Enhance filter (HOO processing)

- 800 ISO

- 60 darks of 60s and 45 darks of 90s, 3 sets of 40 flats (1 per night), 40 offsets.

* Processing:

Siril, then post-processing with GIMP

This is a 4 night Two panel shot join is in the middle of the two shots. As I am able to rotate the Nikon 300mm F4 prime on its lens clamp I marked the degrees so I could rotate to suit camera angle. once done I got an error reading each night 1.4 degrees.

the two panels joined perfectly with next to no step between the two panels. I am impressed so much I am almost willing to for go the Auto Focus with the belt to be able to rotate the camera.

en.wikipedia.org/wiki/Vela_Supernova_Remnant

for those interested a bit more info in the link.

Who can see the face in the shot.

ZWOASI071MC -10c 90 shots per panel 600 secs, over 4 night camera rotated.

ZWOEAF disconnected ,

Optolong LeNhance filter In filter draw,

Nikon 300MM F4 D Lens,

Skywatcher NEQ 6 Pro Hypertuned

Guided PHD2, SGP

Pixinsight, Ps & Lr.

Venus 4/24/20 8:50 EST

First light with the Optolong IR bandpass filter

11" Celestron EdgeHD @F/20

QHY290M

Optolong 685nm IR Filter(as Red & Lum) 5000 frames, 20% stacked in AS2!

Baader UVenus Filter(as Blue)

2500 frames, 20% stacked in AS2!

Green-synthetic

EN: Actually, nights with a bright moon are not particularly suitable for astrophotography, but as there was a clear sky (at the weekend), I tried the Heart Nebula with an appropriate filter. An emission nebula at a distance of about 6500 light years in the constellation Cassiopeia. After all, I was able to collect about 6.3 hours of usable exposure time in two nights.

Techdata: 191 x 120 seconds, telescope TS72, camera ATR2600, filter Optolong L-eXtreme, stacking in Siril.

DE: Eigentlich eignen sich die Nächte mit hellem Mond nicht besonders für die Astrofotografie, da es aber nun mal klaren Himmel gab (am Wochenende), versuchte ich es mit einem entsprechenden Filter am sogenannten Herznebel. Ein Emissionsnebel in etwa 6500 Lichtjahren Entfernung im Sternbild Kassiopeia. Immerhin konnte ich in zwei Nächten so etwa 6,3 Stunden verwertbare Belichtungszeit sammeln.

Techdata: 191 x 120 Sekunden, Teleskop TS72, Kamera ATR2600, Filter Optolong L-eXtreme, Stacking in Siril.

IC1340 - Die Knochenhand (östlicher Cirrusnebel)

ASI 2600 MC Pro - Skywatcher 150/750 PDS - Optolong LExtreme - Asiair - Guiding Mgen II

40 x 600s - Gain 100 bei -10 Grad

50 x Darks - Flats - Bias

Triplet 115/800

Reducer 0.79

ZWO ASI 183MMPRO

HA: 5 hours

L: 3 hours

RGB: 30 minutes each channel

Total: 9:30 hours

PixInsight + PS6

HaLRGB

en.wikipedia.org/wiki/Gabriela_Mistral

The nebula is Named after the Chilean Poet when you see the photo in the link above you can miss the profile in the side. small part of the huge Carina nebula that is only seen in the Southern skies this is three nights worth of shots 41 Shots each night.

QHY 183C -10c 41 shots each night 10 min each over Three nights..

MeLE Mini PC

Pegasus Astro Pocket Mini power box

Prima Luce Essato Focus

Optolong LeNhance filter,

Skywatcher Black DiamondED80 OTA

Skywatcher NEQ 6 Pro Hypertuned

SVbony 50MM Guide scope

QHY QHY5L-II-M Guide camera

Guided PHD2, Nina

Pixinsight, Ps .

NGC 6960 a.k.a. Western Veil Nebula a.k.a. The Witch's Broom

………………………………………

10,000 years ago, long before the first records in human history, a bright light appeared in the sky and lasted for weeks until it faded and disappeared. Now we know that the phenomenon was caused by the explosion of a supernova, a huge star, 20 times larger than the Sun. What is seen in the attached image is a part of the remnants of that star, remnants that created a cloud consisting mainly of hydrogen (red) and oxygen (blue) and which expands with a speed of about 1 milion miles per hour.

This nebula is found in the constellation Cygnus, at a distance of about 2400 light-years from Earth, and is one of the best known summer targets for astrophotography enthusiasts, but due to the large number of stars in that area, it cannot be considered a easy target.

Besides Witch's Broom, other names under which this nebula is known are: Finger of God, Filamentary Nebula or Lacework Nebula.

Equipment and settings:

Mount: SW EQ6R

Telescope: SW Newtonian 150PDS

Camera: ASI 533MC Pro

Filter: Optolong Lextreme

Integration: 6h

88 light frames x 4 min + calibration frames

Stacking with DSS. Edit in Pixinsight si Lightroom.

Location: my Bortle 6+ backyard

Combining data from 2021 and 2022

Edinburgh Bortle 7/8 zone

Sept 2021 plus Dec 2022 combined

Celestron RASA 8"

ZWO 183mc pro

Optolong l-pro filter

ZWO ZWO ASI Air Pro

Sky-Watcher HEQ5 Pro

4 hrs lights; with flats, darks and bias

Gain 122 at -10C

The Pleiades also known as the Seven Sisters, the Chioccetta or with the acronym M45 from the Charles Messier catalogue.

Acquisition Telescope

Tecnosky APO Triplet 152/1216

Acquisition Chamber

Omegon VeTec 571C latest version

Mounting

iOptron CEM120

Homemade flat box, with Ascom 50x50 dimmer

Filters

Optolong L-Pro

Optolong L-Ultimate

Accessories

Primaluce Lab SESTO SENSO 2 • WandererRotator • Electronic control of anti-condensation bands • ZWO 7x2" filter wheel • Riccardi flattener 0.75x

Software

Adobe Photoshop · Astrometric STAcking Program (ASTAP) · iOptron ASCOM Driver and Commander · Planewave Platesolve2 · Pleiades Astrophoto PixInsight · Stark Labs PHD Guiding · Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)

Guiding Telescope

Omegon 90/500

Driving Room

Asi Zwo 224MC

Second test with this setup, together with Marcello Carrieri

35 300s lights with L-Pro filter

Gain 100. Offset 500 Temp -5°

31 flats and 11 darks