Technical Information:

Telescope: AIRY APO 130T PrimaLuceLab

Mount: Paramount MyT - Software Bisque

Camera: QHYCCD QHY9

Filter: Optolong 36mm unmounted L-Pro, R, G, B

Frames: L-Pro:150x240s -- R:45x240s -- G:45x240s -- B:45x240s

Total Integration: 19 Hours

Software: SGP – TheSkyX – PHD2 – DSS – PixInsight – CS6

Location: AstroAtlas Observatory - Noventa di Piave (Venice) 4 meter above sea level – ITALY

Environment Temperature: About 1°C

Relative Humidity: 75%

Date: 27.02.22 - 01.03.22 - 05.03.22 - 08.03.22 - 09.03.22 - 10.03.22

This is my last picture taken from the AstroAtlas Observatory situated in Noventa di Piave (ITALY).

This is M64 acquired with Optolong LRGB filters. Small galaxy for my equipment - The photo had been cropped.

I am happy of this result and I hope you like it!!!

Clear skies!

AstroBin: astrob.in/xfqgjf/0/

NOTE: The image was acquired from a polluted sky with high humidity - Bortle 5.

#astrophotography #astronomy #astroatlas

Teleskop: OMEGON pro Apo 94ED

Reducer: 0,8x

Kamera: Nikon D780a

Nachführung: CEM26

Filter: Optolong L-Pro

Taken with ES127mm scope from my Bortle7 skies. Using AS2600MC camera and Optolong L-eNhance filter for light pollution and moon light. Consists of 18 x 7 minutes Live Stacked and calibrated on the fly in SharpCap Pro. Unfortunately the dither function failed to work in PHD2 so things are less smooth than I would like.

Includes NGC2032, NGC2052, NGC2040, NGC2038, NGC2021, NGC2020, NGC2014, NGC2004 plus others.

Telescope: William Optics ZenithStar 81 Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-Pro

Site: Elk Grove, California, USA

Calibration Files: None

Guiding: None

Integration Time: 5h 9m

Bortle Zone: Class 6

Processing: DSS and Photoshop 2021

---Photo details----

Stacks RGB: 57x2min

Darks : 100

Flats: 100

Exposure Time : 1h54min

Stack program : PixInsight

---Photo scope---

Camera : ZWO ASI2600MC PRO

CCD Temperature : -10C

Filter(s) used: Optolong L-Pro

Tube : Takahashi FSQ-106 EDX4

Field flattener / Reducer : -

Effective focal length : 530 mm

Effective aperture : F/5

---Guide scope---

Camera : ASI Mini guider

Guide exposure : 2 sec

---Mount and other stuff---

Mount : Skywatcher AZ-EQ-6 GT

---Processing details----

NINA for acquisition, controlling the following:

- ASTAP (plate solving)

- PHD2 (guiding)

- Stellarium

PixInsight : stacking, alignment, background extraction, histogram manipulation

Lightroom for final touchups

Topaz Denoise for a last processing step

This is the rich region in the centre of the constellation of Auriga with the Flaming Star Nebula, IC 405 at right and the roundish IC 410 at bottom with the cluster NGC 1893. At top left is the star cluster Messier 38, with small NGC 1907 below it. The small nebula at left is IC 417 around the loose cluster Stock 8. The large elongated nebula at top is Sharpless 2-230. The colourful asterism of stars between IC 405 and IC 410 is the Leaping Minnow or Little Fish, aka Mel 31.

This is a blend of 8 x 4-minute exposures at ISO 800 unfiltered with 8 x 8-minute exposures at ISO 2000 shot through an Optolong L-Enhance dual-band nebula enhancement filter (it lets through only Oxygen III blue-green and Hydrogen-alpha red to really enhance the nebulosity). Blending the exposures adds the extensive red nebulosity recorded by the filtered images without turning the whole field — and stars — red and losing the blue reflection nebulas and subtle colour variations even in the red Ha nebulas.

All exposures with the Canon EOS Ra mirrorless camera through the SharpStar HNT150 Hyperbolic Newtonian Astrograph at f/2.8, from home on a very clear moonless night January 24, 2020. All stacked, aligned and blended in Photoshop 2020. High pass sharpening applied as well as a very selective use of frequency separation sharpening with WOW Freq Equalizer extension.

25x300s

ASI071MC-Cool, Optolong L-Extreme, WO SpaceCat, CGX.

Cygnus from Sadr to the Tulip via the Crescent and WR134. Samyamg135_ASI2600mc. Combination of Colour and Optolong LExtreme data as HaR_0iiiG_Oiiib. Pixinsight and Photoshop

Bonjour,

Encore du beau temps sur les Hauts de France en cet avant dernier week-end d'août. J'en ai donc profité pour faire l'image de la bien nommée nébuleuse de la trompe de d'éléphants (IC1396 - SH2-131 pour ces numéros de catalogue).

C'est une nébuleuse par émission, elle se situe dans la constellation de Céphée à environ 2400-3000 années lumière de notre système solaire.

La nébuleuse complète est très vaste, son diamètre apparent fait 5 fois la pleine lune (je n'ai donc pris en photo qu'une petite partie), cette nébuleuse est très peu lumineuse (magnitude apparente de 9.6), il est donc très difficile de la voir et ceux même à travers un télescope. Seul l'imagerie pourra en révéler toutes ses extensions.

Voici les informations pour le prise de vue de cette image :

Matériel:

Monture Orions Atlas EQ-G

Lunette Skywatcher Equinox 80ED (80/500)

Camera omegon Vetec 533C

Réducteur de focale 0.8

Filtre Optolong LPRO

Guidage:

Chercheur 9X50

Caméra QHY 5 Lii c

Image:

59 poses de 300 secondes soit environ 5 heures au total

25 Darks, Flats, Offset

Caméra refroidie à -5°

Logiciels de prise de vue:

NINA + PHD2

Logiciel de traitement d'images :

Siril + Photoshop

Lieu :

Monchecourt (59) Ciel Bortle 6 niveau pollution lumineuse (données Clear Outside)

Mon site internet : regardceletesteetterrestre.fr

Roughly 7 hours total data, finally got some clear (Bortle 5/6) skies from suburban Brisbane driveway

This is a rich region for star clusters and nebulas on the Cassiopeia-Cepheus border:

The bright open star cluster Messier 52 is at upper left, and below it is the Bubble Nebula, NGC 7635. Below the Bubble is the aptly named Lobster Claw Nebula, Sharpless 2-157 showing subtle shades of red and pink. The small bright nebula to the right of the Bubble is the unnamed NGC 7538. The large nebula at upper left is the Cave Nebula, Sharpless 2-155. However, the entire field is filled with faint nebulosity as well as small intense red patches. A small yellowish star cluster at lower right is NGC 7419.

This is a stack of 10 x 8-minute exposures through the William Optics RedCat 51mm f/4.9 astrographic refractor with the red-sensitive Canon EOS Ra camera at ISO 800, and blended with a stack of 4 x 15-minute exposures through the Optolong L-Enhance narrowband filter, with the EOS Ra at ISO 3200, to make up for the nearly 3 stops loss of light from the filter. But it really pops out all the faint nebulosity. This was the first use of the add-on filter drawer from Starizona, which facilitates adding and removing a 48mm filter into the light path without having to remove the camera and risk field rotation. It worked very well.

Guiding was with the Lacerta MGEN 3 stand-alone autoguider, which also controlled the camera shutter and applied dithering of 10 pixels between each frame to reduce thermal noise without having to apply LENR in camera or dark frames. However, the temperature was -16° C this night so thermal noise was likely low anyway! But the dithering doesn’t hurt! All images were stacked, aligned and mean combined in Photoshop with the filtered set blended with a Lighten blend mode. Taken from home November 11, 2020, using the Astro-Physics Mach1 mount.

This is a wide field view of the central region of the constellation Cygnus and the star Sadr (the bright star near the center). There are several objects in this image including the Butterfly Nebula (right above Sadr), open cluster Messier 29, and several NGC objects. This is part of a larger project I’ve been working on this summer covering the entire central region of Cygnus.

Tech Specs: William Optics REDCAT 51 Telescope, ZWO ASI071MC camera running at 0F, 180-minutes using 5-minute exposures, Optolong l-eXtreme 2” filter, Sky-Watcher EQ6R-Pro mount, ZWO EAF and ASIAir Pro, processed in PixInsight. Image Date: August 25, 2024. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

Optique: TSAPO 125-975 Photoline

Monture: HEQ-5

Imageur: Zwo ASI-2600MC-Pro

Guidage: Zwo ASI 120 MC

Filtre: Optolong L-extrem

60 Brutes de 120s Gain:100

30 DOF

Pré-traitement: SIRIL

Traitement: PixInsight

ccd: Moravian G3-16200 with EFW + OAG

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

telescope: TEC 140 f/7

mount: 10Micron GM2000 QCI

guider: Lodestar X2

exposure: L 21x20min + RGB 8x12min (all 1x1)

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

software: TheSkyX Pro, CCD Commander, Pixinsight, PS CS5

date: 7 Mar - 2 Jun 2019

——— STRUMENTAZIONE ———

Telescopio: Askar fra600

Camera: Zwo Asi 294 mc pro

Montatura: Skywatcher AZ-EQ5

Autoguida: Zwo mini guide con zwo asi 224mc

Filtro Optolong L-pro

Software d'acquisizione Sgpro

————— FOTO ————

temp 0 con dark, flat e darkflat

rgb 177 x 300s

————— ELABORAZIONE ———

Pixinsight

Photoshop

Apod NASA 15-11-2022

apod.nasa.gov/apod/ap221115.html

——— STRUMENTAZIONE ———

Telescopio: Skywatcher evostar ed80

Camera: Zwo Asi 294 mc Zwo Asi 294 mm

Montatura: Skywatcher AZ-EQ5

Autoguida: 60mm UltraGuide Artesky con zwo asi 224mc

Correttore 0.85x ed80 skywatcher

Filtri Optolong L-pro H-alfa

Software d'acquisizione Sgpro

————— FOTO ————

temp 0 con dark, flat e darkflat

ha 90 x 300s

rgb 252 x 300s

—— ELABORAZIONE ——

Pixinsight

Photoshop

* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: QHY163M

Mount: Veronica CEM

Filters: LRGB Optolong and H-Alpha Baader

*Exposure:

L: 2.8 hours (subs 180s) bin1x1

Ha: 4.2 hours (subs 300s) bin1x1

R: 0.5 min. (subs 60s) bin2x2

G: 0.5 min. (subs 60s) bin2x2

B: 0.5 min. (subs 60s) bin2x2

Total: 8.5 hours

Recent clear and frosty nights have given me some decent data collection on this target. This is the Christmas Tree Cluster and the Cone Nebula (NGC2264) located in the constellation of Monoceros. The red Christmas tree shape is clear, adorned with its blue tinged open star cluster masquerading as the baubles. The Cone Nebula sits at the top of the 'tree' but is inverted in this shot. Deep within the clouds of gas and dust are the ingredients for producing new stars, which burn a fiercely hot bright blue. The red hue in the image is a result of gas clouds glowing as they are hit by ultra-violet light emanating from the newborn stars. The region is about 30 lightyears across and sits 2600 lightyears from Earth, not far in the sky from the Orion constellation.

William Optics GT81

William Optics Flat 6AIII

ZWO ASI2600MC Pro

ZWO ASI Air Pro

Skywatcher HEQ 5 Pro

Optolong L-eXtreme filter

117 x 300s lights, 40 darks, 50 flats and 50 dark flats at gain 100 and -10C.

Stacked in DSS, processed with PS and LR.

Technical Informations:

Telescope: AIRY APO 130T Reduced f/5.3

Mount: NEQ6-Pro

Camera : QHY168C -- GAIN:10 ; OFFSET:32 -- -20°C

Filter: Optolong 2" L-Pro

Frames: RGGB 180 x 240s

Total Integration: 12 Hours

Software: SGP – PHD2 – PixInsight – CS6

Location: Noventa di Piave (Venice) 4 meter above sea level – ITALY

Relative Humidity: 87%

Date: 21.01.18 - 23.01.18

NOTE: Unfortunately I acquired this image from a very polluted sky ( where I live - Red Zone ).

I am happy of this result by the way... I hope I can acquire from a dark sky, soon!!!

Supernova remnant (SNR) with an apparent diameter of a Full Moon. It's a very challenging object to photograph, as it is quite faint. Without using Ha and OIII filters, the SNR is virtually invisible. Captured in 5 nights, from October, 2018 to January, 2019 (13.5 Hours of global exp.)

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: Triplet Apo Tecnosky 80mm f/4.8

Mount: Ioptron CEM60 HP

Autoguider: camera Magzero 5m, SW 70/500, Phd guiding

Frames: Ha 7nm: 27X600sec - OIII 6.5nm: 27X600sec - RGB: 9X600 sec each bin1

Processing: Pixinsight, Photoshop

This is the rich region of clusters and nebulosity in the constellation of Gemini, with the Jellyfish Nebula, IC 443 at bottom near the orange star eta Geminorum. IC 443 is a supernova remnant. The larger region of fainter, diffuse nebulosity at left is IC 444. The loose star cluster embedded in it, with the blue star 12 Gem, is Collinder 89. At top right is the bright showpiece open star cluster Messier 35 with its smaller, more distant companion cluster NGC 2158 at lower right from M35.

This is a blend of 8 x 5-minute exposures at ISO 800 unfiltered with 6 x 10-minute exposures at ISO 1600 shot through an Optolong L-Enhance dual-band nebula enhancement filter (it lets through only Oxygen III blue-green and Hydrogen-alpha red to really enhance the nebulosity). All exposures with the Canon EOS Ra mirrorless camera through the SharpStar HNT150 Hyperbolic Newtonian Astrograph at f/2.8, from home on a very clear moonless night January 27, 2020. All stacked, aligned and blended in Photoshop 2020.

NGC6883 (Open Cluster) and Wolf Rayet 134.

Reflector Takahashi FC76DCU

Mount Takahashi EM 200 Temma 2

ZWO Asi 2600MC Pro + DO + Azi 290 mini

Optolong L-Extrem Filter.

DOF 10/10/10

Process HOO with SIRIL.

10h integration over 3 nigths.

——— STRUMENTAZIONE ———

Telescopio: Skywatcher evostar ed80

Camera: Zwo Asi 294 mc

Montatura: Skywatcher AZ-EQ5

Autoguida: 60mm UltraGuide Artesky con zwo asi 224mc

Correttore 0.85x ed80 skywatcher

Filtro Optolong L-pro

Software d'acquisizione Sgpro

————— FOTO ————

temp -10 con dark, flat e darkflat

120 x 300s

—— ELABORAZIONE ——

Pixinsight

Photoshop

Je vous présente la version finale nébuleuse de la rosette dans la constellation de la Licorne, Elle se situe à environ 5400 années lumières.

La prise de vue a été réalisée sous 3 nuits de Lune quasi pleine début février et une nuit de fin février avec une Lune à 50%, le filtre L-extreme de Optolong est très efficace pour ça. Cette image est donc une composition HOO.

Au niveau matériel:

Lunette Skywatcher Equinox 80ED (80/500)

Monture Orion Atlas EQ/G

Réducteur de focale 0.8

Caméra Omegon.com Vetec533C

USB FOCus V3

Filtre optolong L-extreme

Guidage:

Chercheur 9X50

Caméra QHY 5 Lii

Logiciel d'acquisition : N.IN.A

Image:

Jour 1: 30 images de 5 minutes (Lune à 100%)

Jour 2: 31 images de 5 minutes (Lune à 97 %)

Jour 3: 32 images de 5 minutes (Lune à 93%)

Jour 4 : 28 images de 5 minutes (Lune à 50%)

Traitement images: SIRILIC+SIRIL+Photoshop

Here is 16 x 4-minutes on the Omega Nebula using a One-shot-color camera (ASI294) with an Optolong L-eNhance Filter.

I heard someone mention that this filter "let's in too much light pollution", but I have not found that to be that case.

More Info: astrobackyard.com/optolong-l-enhance-filter/

The Omega Nebula does not reach more than 30 degrees in apparent altitude from my location, and it sits right over the light dome of my city (Bortle Class 6/7).

The telescope used was a William Optics FLT 132, riding on a Celestron CGX-L. I think I'll share a photo of this setup next.

Thanks for looking, all!

Taken Nov 7/8, 2021. I stayed out till almost 1:00 AM on a work night shooting this image of the California Nebula. It is 2.55 hours of 3 minute sub-images (51x180 sec) calibrated and stacked in SharpCap 3.2 LiveStacking, then a quick stretch and color balance adjustment in FitsWorks with final post processing in PS.

Taken with a QHY183c camera at -15C cooling (gain 11, offset 50,) an Astro-Tech AT60ED at F/4.8 and an Optolong L-eNhance filter. Metro area location under heavy light pollution, but clear and transparent skies.

cali-neb-51x180-g11-o50-qhy183c_-15C-lenh-60f4_8

A portrait of various emission nebulas in southern Gemini and into northern Orion. At top is the bright star cluster Messier 35, with the small more distant open star cluster NGC 2158 below and to the right of it. Left of centre is the shell-like supernova remnant, IC 443, aka the Jellyfish Nebula. The small blue reflection nebula above and to the left of it is IC 444 amid a field of fainter emission nebulosity. The round and bright nebula at bottom is IC 2174 in Orion, aka the Monkeyhead Nebula. It is mostly an emission nebula but has some blue reflection components. The smaller round red nebula above it is Sharpless 2-247. It appears to be an ionized HII region, as a form of bubble, but is not a planetary nebula. So this is a field of various forms of nebulas: emission, reflection and supernova remnants. Missing is an obvious planetary nebula or dark nebula.

The orange star to the right of the Jellyfish is Propus, or eta Geminorum.

This is a stack and blend of filtered and unfiltered exposures, the latter set maintaining the natural star colours, and avoiding the haloes introduced by the filters, particularly the L-eXtreme.

The image is a blend of: 10 x 6 minutes at ISO 800 without a filter + 8 x 12 minutes at ISO 1600 with an Optolong L-eNhance dual narrow-band filter + 6 x 16 minutes at ISO 3200 with the Optolong L-eXtreme vary narrowband filter, the latter set taken at the end of the sequence when the field was quite low. Through masking the L-eXtreme images contributed only some of the nebulosity, particularly the subtle cyan fringes on the leading edges of IC 443 — it is the Oxygen III cyans that the L-eXtreme is good at picking up.

All were with the Canon EOS Ra camera and through the SharpStar 76mm triplet apo refractor with the EDPH reducer/flattener for f/4.5. Guiding was with the multi-star Lacerta MGEN3 stand-alone auto-guider, which also controlled the camera shutter and performed dithering between each frame to shift each exposure by a few pixels for noise reduction in stacking. All stacking, alignment and blending was with Photoshop v22.3. Some curves were applied with Lumenzia luminosity masks to selectively adjust the mids or dark-mid tones. Nik Collection ColorEFX ProContrast filter applied locally to the nebulas, plus a high pass sharpening, both to further enhance the nebulosity. No darks or LENR frames were employed or applied on this cool but pleasant and very clear and dry late winter night.

Le Triplet du Lion est un petit amas de trois galaxies - M65, M66 et NGC 3628. Il est situé dans la constellation du Lion, à environ 35 millions d'années-lumière de nous, et ces galaxies sont d'une magnitude apparente de 9.

The Leo Triplet is a small group of galaxies about 35 millions light-years from us in the constellation of Leo. Its avarage magnitude is about 9.

Acquisition:

Rising Cam IMX571 color + Zenithstar

iOptron CEM26 + iPolar

Filtre Optolong L-Pro

ZWO ASI224MC + WO Uniguide 120mm

NINA & PHD2

11, 12 et 14 février 2023 : 50x3min

Traitement/processing :

Siril & Gimp

AstroM1

(rsi3x.3a)

Telescope: WO ZenithStar 81 Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-Pro Filter

Site: Elk Grove, California, USA

Calibration Files: None

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

Integration Time: 2h 30m

No of Frames: 75

Sub Exposure Time: 120sec

Bortle Zone: Class 6

Date Taken: Sept 1, 2021

Northfield, OH

August 19, 2023

Equipment--

Telescope: RedCat 51, 250mm focal length

Mount: Sky-Watcher EQ6R-Pro

Camera: ZWO ASI204MC-Pro

Guide scope: Williams Optics 50mm guide scope

Guide camera: ZWO ASI120MM-S

Software: NINA, PHD2

Imaging--

Lights: 32x300s

Darks, Flats, DarkFlats, Bias: assorted

Sensor temp: -10.0

Filter: Optolong L-Pro

Sky: Bortle 6 (nominal)

Post processing--

Software: PixInsight, Photoshop

Actually a dwarf galaxy. Located in Ursa Major, a constellation in the northern sky, it is an outlying member of the M81 Group. It is believed that 90% of its mass is in the form of dark matter. A mere 12 million light-years away, and 50,000 light-years across.

Esprit 120mm, QHY268M, Optolong LRGB and Ha filters. Shot at my Bortle 1 sight in Arizona.

2hr 15min lum, 1 hr each RGB and 6hr of Ha. 15 hr integration

Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 200p + SW Coma Corrector 0.9x + EQ6-R-Pro + Long Perng 2" Dual Speed Low Profile Crayford Focuser + ZWO EAF

Equipo guía: guidescope 60/240 mm, camara guia ZWO ASI 120mm mini

*Gain 139, -20 º C, Ha 7nm 2" Optolong, 71x180"

*Gain 139, -20 º C, Oiii-CCD 6.5 nm 2" Optolong, 71x180"

100 Darks

100 Flats por filtro

Polar Align: SharpCap 3.2

Adquisición: SGP 3.1

Procesado: Pixinsight 1.8.8, PS

Sunflower galaxy M63 is a spiral galaxy located about 37 million years from Earth in Canes Venatici. It’s resemble sunflower with compacted dust lanes, yellow core and Blue spiral arms. Gear setup: Celestron HD8 @ f/7, iOptron GEM45 guided by Celestron OAG with ZWO 174, light subs from last year with ZWO 2600MC -5C, Optolong L-Pro 12/05/2023 - 27x180sec, 13/05/2023 42x180sec, Darks 20, Flats 10, Bias 50. Celestron HD11 @f/7, iOptron CEM70, light subs 04/05/2024 235x30sec, 11/05/2024 31x180sec , Antlia Tri RGB ultra Filter. Total exposure 7 hours. Captured by APT, Sharpcap pro, PHD2. Stacking by APP and processed by PI & PS.

Esse objeto é muito tênue, mas gosto bastante dele, principalmente pela imensa quantidade de estrelas presentes no campo. O céu tem ficado bem instável e após uma hora de captura as nuvens apareceram para estragar a festa.

Refletor GSO 305mm + AZ/EQ-6.

Canon 6D mod. + Cooler box.

Corretor de coma Baader MKIII.

Filtro cls-ccd Optolong.

13 x 300 ISO 1600.

05-01-2020

Singapore

OTA: SR60mm f/6.0 APO, w/Flattener

Imaging: ASI183MM Pro, w/ASI120-MM-S (Guiding - QHY MGS)

Mount: CEM25P

Filters: Optolong Ha, Oiii

Sequencing: ASIAIR

Integration: (Ha) 12x300s, (Oiii) 9x600s

Pixinsight, GIMP 2.0

Reprocessed to add synthetic red from Ha & Oiii Channels by PixInsight's PixelMath function.

Revised PI Narrowband workflow routine:

Phase 1 - QC and LRGB image generation.

Blink, Image Calibration (Superbias, Master Dark & Light Frames), Star Alignment (Pre-Integration), Image Integration, LRGB Combination or Channel Combination

Phase 2 - Image enhancement

Dynamic Crop, Dynamic Background Extraction, Background Neutralization, Color Calibration, Screen Transfer Function, Histogram Transformation, Unsharp Mask, Multiscale Linear Transformation, Curves Transformation

Optional - DynamicPSF, Deconvolution, TGVDeNoise

La NGC 7000 nebulosa Norteamerica y la IC5070 nebulosa del pelicano forman parte de la misma nube interestelar de hidrogeno ionizado en la constelación del Cisne cerca de la estrella Deneb. Son nebulosas de emisión

El nombre nebulosa Norteamerica viene de que se asimila al continente Norteamericano con el golfo de mexico incluido, el area oscura central.

Se encuentra a 1800 años luz de nosotros y ocupa el tamaño de la luna llena.

Adjunto una fotografía tomada el 9 de julio de 2021 en Guadalajara (España) en un área de Bortle 2, en ella se pueden ver las nebulosas Norteamérica y Pelicano. La imagen se tomó con una cámara Canon 6Da y un telescopio SpaceCat 51 de 250 mm f 4.9, la imagen es de cuatro horas con tomas de 600s a ISO 1600 con el filtro Optolong L_extreme.

He realizado el procesamiento con Pixinsight y PS.

The NGC 7000 North America Nebula and IC5070 Pelican Nebula are part of the same interstellar ionized hydrogen cloud in the constellation Swan near the star Deneb. They are emission nebulae

The name North America nebula comes from the fact that it is assimilated to the North American continent with the Gulf of Mexico included, the central dark area.

It is 1800 light years from us and is the size of the full moon.

I attach a photograph taken on July 9, 2021 in Guadalajara (Spain) in an area of Bortle 2, in it you can see the North America and Pelican nebulae. The image has been taken with a Canon 6Da camera and a 250mm f 4.9 SpaceCat 51 telescope, the image is four hours of 600s shots at ISO 1600 with the Optolong L_extreme filter.

I have done the processing with Pixinsight and PS.

Galassia Girandola del Sud (nota anche come M83 o NGC 5236) è una galassia a spirale intermedia visibile nella costellazione dell'Idra. È una delle galassie a spirale più vicine e luminose nel cielo, ed è individuabile anche con un binocolo. Il suo nome "Galassia Girandola" è dovuto ai suoi bracci a spirale. M83 appare vista quasi perfettamente di faccia, pertanto è ben studiata e le sue strutture dei bracci sono ben conosciute, la sua distanza è stimata sui 15 milioni di anni luce appena, diventando così una delle galassie più vicine a noi. Il suo moto nello spazio tuttavia la fa allontanare da noi alla velocità di 337 km/s.

Sky-Watcher Newton 200/1000@960

ToupTek Astronomy Cameras ATR2600C

Light 129 da *300" e 180" Tot. 7 ore e 47 minuti

Optolong L-QEF

Guida Phd2 tubo 60/240 e ASI 224

Sky-Watcher EQ6-r pro

Acquisizione N.I.N.A.

Stacking DSS elab. Pixinsight Photoshop

Ripresa del 26/29 Aprile e 1/2 Maggio 2025

Sannicola ( LE ) Italy

SQM 19.48

The Iris Nebula (also known as NGC 7023 and Caldwell 4) is a bright reflection nebula in the constellation Cepheus embedded in surrounding fields of interstellar dust

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: Televue 102 f/7

Mount: Ioptron CEM60 HP

Autoguider: camera Magzero 5m on SW 70/500, Phd guiding

Frames: L: 16X600sec - RGB: 6X600sec each Bin1 -25°

Processing: Pixinsight, Photoshop

The sky-gods surprised me last night with 3 semi-clear hours. I quickly set up the RedCat 51 and Canon EOS Ra for some wide-field deep-sky images in Auriga.

Here is 50 x 3-minutes at ISO 1600 on the Flaming Star Nebula and Tadpole Nebula at a true 250mm focal length.

You can also see the "Spider and the Fly" in there.

This was a fantastic test of the Ha sensitivity of the Ra using a dual bandpass filter (Optolong L-eNhance).

Canon EOS Ra

Optolong L-eNhance Filter

William Optics RedCat 51

William Optics Uniguide 50mm

ZWO ASI290mm Mini

Sky-Watcher EQ6-R Pro

Astro Photography Tool

PHD2 Guiding

DeepSkyStacker

Photoshop 2020

There is a conspicuous chain of large craters, "The Great Eastern Chain", which lines up along the same meridian on the Southeastern limb of the Moon. They start on the southeastern shore of the Sea of Fertility and continue south (to the right in this image). The chain consists of the craters Langrenus, Vendelinus, Petavius, and Furnerius. The craters formed at different times, separated by gulfs of millions, even billions of years. This photo features the trio (L-R) of Langrenus, Vendelinus, and Petavius. I captured it on the night of March 30, 2021.

• Langrenus & Vendelinus: These craters are the first two links of the Great Eastern Chain. Langrenus and Vendelinus are two large 90-mi. craters located on the southeast shore of the Sea of Fertility. One is considerably older than the other. It should be easy for you to decide which that is. If you cannot tell, take note of the terraced walls and central peaks of Langrenus, standing out with clear detail. Note also the pattern of craterlets that radiate away from Langrenus. These are features of younger craters. Vendelinus, in contrast, has a smooth floor, where lava and rubble from later impacts filled its basin. The central peaks have been buried by this debris. The rim of Vendelinus is overlain by younger craters, and its surrounding rampart is battered down. These are the signs of great age. Indeed, these two craters may differ in age by a billion to as much as 3 billion years.

• Petavius: This is an example of a floor-fractured crater, a type of crater that has been modified by later volcanism, uplift, and consequent fracturing. The floor of Petavius is nearly 1,000 feet higher near its center than around the edge! Turbulence and volcanic upheaval from below split the central mountain (which rises to nearly one mile above the floor) and formed the rilles. The principal rille, Rima Petavius, is quite prominent: it extends from the central peak to the southwest wall. Petavius falls between Langrenus and Vendelinus in age. While it retains a notable central peak and its walls are terraced, its walls are also slumped and battered by secondary craters.

The imaging system used was a Celestron EdgeHD SCT, 8" aperture, f/10, 2032mm on a Celestron Advanced VX mount. I used a ZWO ASI290MM camera with an Optolong IR Pass (685nm) filter . I collected 32,399 video frames, then stacked the best 5 percent of them into a single image using AutoStakkert! 3. I applied some mild wavelets processing with Registax 6 and a final buff in Photoshop.

I want to acknowledge the work of Andrew Planck and his wonderful blog posts which first directed my attention to this (and many other) fascinating lunar features. I borrowed his organization and blended some of his text with my own for this post.

Far far away, about 12 million light-years distant the M81 group galaxies are seen toward the northern constellation Ursa Major (the Great Bear).Also known as Bode's galaxy, M81 itself spans some 100,000 light-years. On the left is cigar-shaped irregular galaxy M82. The pair have been locked in gravitational combat for a billion years. Their last go-round lasted about 100 million years and likely raised density waves rippling around M81, resulting in massive star forming regions arrayed along M81's spiral arms. M82 was left with violent star forming regions too, and colliding gas clouds so energetic that the galaxy glows in X-rays. In the next few billion years, their continuing gravitational encounters will result in a merger, and a single galaxy will remain. M81 contains a supermassive black hole (SMBH) at its center, with a mass estimated to be around 70 million times the mass of our Sun. This black hole is significantly larger than the Milky Way's central black hole, which has a mass of about 4 million solar masses. Other galaxies in the shot, like NGC 3077, are much farther- 205 million light-years away. The closer foreground the wide-field image is filled with integrated flux nebulae (IFN) whose faint, dusty interstellar clouds reflect starlight above the plane of our own Milky Way galaxy.

Taken mostly at the Texas Star Party, April 2025. Radian Raptor 61 Telescope, ZWO2600M, Optolong RGBHa filters, AM5 mount.

51 hours 40 min total integration time.

Northfield, OH

Oct 29, Nov 25 2022

Equipment--

Telescope: Explore Scientific ED 80, field flattener (no reducer), 480mm focal length

Mount: Sky-Watcher EQ6R-Pro

Camera: ZWO ASI204MC-Pro

Guide scope: Williams Optics 50mm guide scope

Guide camera: ZWO ASI120MM-S

Software: NINA, PHD2

Imaging--

Lights: 40x300s

Darks, Flats, DarkFlats, Bias: assorted

Sensor temp: -10.0

Filter: Optolong L-Pro

Sky: Bortle 6 (nominal)

Post processing--

Software: PixInsight, Photoshop

The Horsehead Nebula is a dark nebula found just below the star Alnitak in the Orion belt.

This nebula with its characteristic shape is observable thanks to the IC 434 emission nebula located behind it.

The Flame Nebula, instead, is found just to the left of the horse.

The characteristic of this nebula, which gives it its name, is the dark mass of dust that passes through it and which gives it the shape of a flame.

Shooting data:

21.11.2020 - CET 9:50 pm

Verona, Italy 45° 24' N - 10° 59' E

Bortle class: 8-9 / 9

SQM average: 18,35 mag./arc sec2

Sky-Watcher Newton 200/1000 F5 reduced to 900 F4,5

Canon EOS 450D modified Baader

Coma corrector Sky-Watcher F5 reducer 0,90

Optolong L-eNhance

HEQ5 Pro

Guide telescope Sky-Watcher achromatic 80/400

Guide camera ZWO ASI224 MC

73 x 180"

ISO 800

34 Dark

34 Bias

25 Flat

alessandrobiasia.wixsite.com/astrophotography

ZWO first light

ZWO ASI294 Camera cooled to -10C

Williams Optics Redcat 51 scope 250mm at f4.9

Optolong IR cut filter

Exposer 70 minutes (35 x 120 sec) Bordle 2 site

ccd: Moravian G3-16200 with EFW + OAG

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

telescope: TEC 140 f/7

mount: 10Micron GM2000 QCI

guider: Lodestar X2

exposure: RGB 8x12min + Ha 16x30min + OIII 22x30min (all 1x1)

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

software: TheSkyX Pro, CCD Commander, Pixinsight, PS CS5

date: 18 Jun - 16 Aug 2019

M77 (NGC 1068), centre, and NGC 1055 at lower right are two spiral galaxies in the constellation of Cetus. They are around 50 million light years distant and 500,000 light years apart.

This is an RGB integrated image with just under 6 hours of data in each of the channels. Shot with a QHI163M camera and Optolong RGB filters, the scope was a WO FLT110. Image sequencing and guiding was controlled via SGP and PHD2 respectively, all post-processing was carried out in PixInsight.

Observed from Prachinburi, Thailand

Here's the heart of the Heart Nebula, or Melotte 15 and surrounding nebulosity. When the light that made this photo left it's source 7,500 years ago, humans were just starting to figure out civilization and copper smelting... you could make the argument we are still figuring out civilization 😆.

This area is rich in Hydrogen (red) and ionized oxygen (blue/green) and dust which blend to create the red/pink and contrasting dark sections seen in the region. Some of the large, young stars near the center of Melotte 15 are nearly 50 times the mass of our sun.

This data was my first light with the new Optolong L-Extreme duoband filter and so far I'm a huge fan. Considering half of this data was shot through thin, high level clouds from our suburban back yard and the moon was about 70% the entire time...pretty amazing!

Specs: 45x300" exposures. Calibrated with 30 darks, no flats or dark flats (I was lazy this weekend). TSO 130 Photoline Refractor, Skywatcher EQ6-R mount, ASI294MCPRO camera, Optolong L-Extreme filter. Cooled to 5 degrees F, unity gain. Captured in APT, stacked and Ha / oiii channels extracted with APP, Merged and processed in Photoshop, Final touches in Lightroom.

Here's to a great start of 2022! I spent the night under the stars at a nearby observatory with my telescope, and here's my take at a classic of the winter sky.

Technical data:

OTA: SkyWatcher Newton 200mm F/5 - upgraded with the secondary mirror support kit from ArteSky

Mount: iOptron CEM60

Camera: ZWO ASI 1600 MM-C, cooled at -20C

Guide Camera: ASI290MM

Guide Scope: ArteSky 60mm F/4

Filters: Optolong LRGB

Baader Coma Corrector MPCIII

Software: Sequence Generator Pro, PHD2, Deep Sky Stacker, PS

96 frames in total, Gain 139 - Offset 21

L 20x10s + 19x30s + 16x120s (45m)

R 13x60s (13m)

G 15x60s (15m)

B 13x60s (13m)

Total Integration Time: 1 hour, 26 minutes

29 Darks

60 Flats

Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 200p + SW Coma Corrector 0.9x + EQ6-R-Pro + Long Perng 2" Dual Speed Low Profile Crayford Focuser + ZWO EAF + ZWO 7x2" EFW

Equipo guía: guidescope 60/240 mm, ZWO ASI 120mm mini

*Gain 100, -25 º C, L 2" Optolong, 360x15"

*Gain 100, -25 º C, R-CCD 2" Svbony, 120x15"

*Gain 100, -25 º C, G-CCD 2" Svbony, 120x15"

*Gain 100, -25 º C, B-CCD 2" Svbony, 120x15"

*Gain 139, -25 º C, Ha 7nm 2" Optolong, 20x180"

100 Darks

100 Flats / filter

100 DarkFlats

Polar Align: SharpCap 3.2

Adquisición: SGP 3.1

Procesado: Pixinsight 1.8.8, PS

Image of the great Orion nebula M42 and the Running man nebula on the left. Orion nebula is the nearest star forming cloud to Earth with a distance of 1300 light year. This cloud is composed of hot Hydrogen gas and dust and can be seen by the naked eye in the dark places. In the image, we can see the Trapezium core of the nebula which is hot young stars that energise the hydrogen gas to emit red light. Gear setup: ES 102 CF, x0.8 F/F, iOptron GEM 45 pro, Optolong L-Pro filter, ZWO 294 MC @0. Zwo mini guide scope, ZWO 120MM-S. Lights 70x120s, 20 Darks, 20 Flats, 50 Bias. Total integration of 2 hours. Stacked and processed by PI.