Picture was taken in CZ, August 30, 2019. Nikon Z7 + Sigma 135/1,8 Art @ 2,2. Exposure 60 s, ISO 400. Light frames 40 x, Dark 15 x, Bias 15 x, No Flat. Tracking iOptron SkyGuider Pro, Stacked in AstroPixelProcessor, adjusted in Adobe LR + PS. Full image. M31 has apparent dimensions 190 x 60 arcmins and apparent magnitude 4,3. In low light pollution area you can see it by naked eyes, but small binocular is recommended. Enjoy...

Dati: 60 x 300 sec ( 5 ore) gain 5 @ -10° c + 36 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: asi120mm su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 23 ° C - Umidità 65%

Je 10x180sec in Luminanz, Rot, Grün und Blau also 2 Stunden Gesamtbelichtungszeit aus 2 Nächten, Teleskop: Takahashi FSQ ED Petzval, D=106mm, F=530mm, f/5.0, Kamera: FLI Microline 16803, Siding Springs Observatory, Australien, Teleskop T08 von iTelescope.net; bearbeitet mit AstroPixelProcessor und Photoshop

Je 4x300sec RGB, 3x600sec Halpha, 110 min Gesamtbelichtungszeit, Teleskop T10 von iTelescope.net (Takahashi TOA-130 APO, D=130mm F=762mm f/5.9, Kamera: SBIG STX-16803), Bearbeitung mit AstroPixelProcessor, Photoshop

Dati: 33x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 20 ° C - Umidità 70%

NGC 7822 is a beatiful region in the constellation of Cepheus. This image shows this very nice region taken in narrowband.

Processing was done using Astropixelprocessor, Pixinsight and photoshop.

Telescope: TBM92SS

Camera: QSI583ws

Ha: 25x900s

OIII: 8x900s

SII: 25x900s

Color Combination according to Hubble palette.

Shooting Location :

* 51° N 3° E

* bortle class 5 backyard

IC1805 Information

* Type : Emission Nebula

* Magnitude : 6.5

* Location (J2000.0): RA 02h 20m 45s / DEC +61° 12' 42"

* Approximate distance : 7.500 lightyears

IC1845 Information

* Type : Emission Nebula

* Magnitude : 6.5

* Location (J2000.0): RA 02h 55m 24s / DEC +60° 24' 36"

* Approximate distance : 7.500 lightyears

Hardware

* Mount : Celestron CGX

* Imaging Scope : Canon EF 70-200mm f/2.8 L IS II USM @ 135mm f/2.8

* Imaging Camera : ZWO ASI 183MM

* Filter Wheel : ZWO EFW 7*36mm + Baader Ha 7nm, Baader OIII 8.5nm + Baader SII 8.5nm + Baader LRGB

* Guide Scope : -

* Guide Camera : -

Exposures

* Single Exposure Length : 120s

* Sensor Temperature : -20°C

* Gain : 111

* Offset : 10

* Light Frames :

> Baader Ha : 42

> Baader OIII : 40

> Baaser SII : 40

* Bias Frames : 50

* Dark Frames : 30

* Flat Frames : -

* Flat Dark Frames : -

* Total Integration Time : 4h04m

* Capture Date : 2019-11-20/21

Capture Software

* ZWO ASIair

Processing Software

* AstroPixelProcessor

* PixInsight

* Adobe Photoshop

* Topaz AI Denoize

3 hours collected (2 min exposures). 2.8 hours integrated via AstroPixelProcessor. Last month's flats, bias,darks applied. RASA 8, 2600Duo, AM5. Guiding via WO 32 Uniguide. Processed in PI. Crop/sig in PScc. SCNR applied 3 times :)

Comet Neowise last night.

10x 10second shots stacked at 500mm ISO800 f5.6 10secs.

Nikon D850.

500mm PF

iOptron skyguider.

AstroPixelProcessor.

PS

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All photos are ©GadgetGaz_photo

-All rights reserved- www.gadgetgazphoto.com

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Dati: 40 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 25 flat e darkflat

Filtro Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura 14° C - Umidità 63%

41 freames, processed in Astro Pixel Processor and Lightroom

2018 version. A total of 17.4 hrs integration time with Red, Green and Blue filters on QHY16200 CCD cooled to -20C attached to Esprit 100 f5.5 refractor. (209 subs of 300 seconds) Imaged on 10,11,12,14,15 & 16 Aug 2018.

Processed with Astropixelprocessor using 2 x Drizzle and 60 Darks, 256 Bias and 25x3 Flatframes. Further processing in Pixinsight (PhotometricColorCalibration, Arcsinh Stretch, Curves, HDRMultiscale, LocalHistogramEqualisation.)

This is the full version of this image: www.flickr.com/photos/kees-scherer/30243178338/in/datepos...

Knight Observatory, Tomar

Used: www.numerama.com/sciences/463614-la-galaxie-andromede-vie...

Nova PNV J23244760+6111140 (PNVinCas) was discovered on 18 March by Japanese amateur astronomer Yuji Nakamura.

Here it is, centre-frame, the middle of a line of 3 below and slightly left of the triangle of 3 golden stars, the scene surrounded by the Bubble Nebula and open cluster M52 (NGC 7654).

Skywatcher Quattro 8" with Altair Astro 26C camera, -10ºC, gain 1000, 2min

subs:.

Lights: .Baader Neodymium: 10.

UHC: 5.

Bias: 128.

Dark: 32.

Flats: 8 each.

AstroPixelProcessor and Affinity

telescopius.com/pictures/view/82557

www.popastro.com/main_spa1/blog/2021/03/19/nova-in-cassio...

Star Adventurer - Canon 6D - Lente Canon EF 50mm f/1,4 USM

16 lights - f/4 - 300s - ISO 1600 - 4000K - 16 darks - 24 flats

Procesado: AstroPixelProcessor - Adobe Lightroom

Messier 51 (a.k.a Whirlpool Galaxy) was one of the first of Charles Messier's spiral galaxy discoveries in 1773, found whilst observing a comet. This object is actually two galaxies (NGC5194 & NGC5195) interacting with each other where the outer regions are just touching. M51 is located approximately 30 million light years from Earth.

🌀🌠🌌🌟

Image Information

Telescope: Planewave 20" CDK Reflector | f4.5

Camera: FLI Proline PL11002M CCD

Mount: Planewave Ascension 200HR

Exposure Details: L 12 x 300 sec (1xbin), RGB 18 x 300 sec (2xbin)

Observatory: New Mexico, Mayhill, USA

Date Taken: February 2019

Post-Processing: AstroPixelProcessor

The start with the new mount is done. All went very very well and all was working perfectly :-)

This is the Messier 101 (The Pinwheel Galaxy).

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years (6.4 megaparsecs)[5] away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781[a] and was communicated that year to Charles Messier, who verified its position for inclusion in the Messier Catalogue as one of its final entries.

On February 28, 2006, NASA and the European Space Agency released a very detailed image of the Pinwheel Galaxy, which was the largest and most-detailed image of a galaxy by Hubble Space Telescope at the time.[10] The image was composed of 51 individual exposures, plus some extra ground-based photos.

{Wikipedia)

Mount: SkyWatcher HEQ5 Pro

Guiding: ZWO ASI 120MM Mini USB 2.0 Mono Camera - Orion 50mm Guide Scope

Filter: Astronomik CLS CCD EOS APS-C Clip-Filter

Camera: Canon EOS 70D (full spectrum modified)

Sigma 150-600mm f/5-6.3 DG OS HSM (Contemporary)

Focal length: 600mm

130 x 120 seconds frames - ISO 500 - f6.3

4hr 20" total Integration

Darks: 15 frames

Flats: 25 frames

Bios: 15 frames

DarkFlats: N/A

Bortle 5.5

Apps: N.I.N.A. > PHD2 > ASCOM

Processing: AstroPixelProcessor > Photoshop >Topaz > Photoshop

4 panel mosaic.

Imaged over 17 nights in June and July 2018, near Cambridge UK.

Image Details:

40 hours 5 mins total exposure.

57 x 300s Red 1x1 (4 hours 45mins)

49 x 300s Green 1x1 (4 hours 5mins)

47 x 300s Blue 1x1 (3 hours 55mins)

82 x 1200s Ha (27 hours 20m)

Scope - Altair Astro Wave Series 115mm Refractor, Planostar 0.79x reduced to 642mm/F5.54.

Sensor - Atik 383l+ Mono CCD + Baader Ha and RGB filters. -20degC.

Scale - 1.73 arcsec/pixel.

Mount - Altair Astro Pier mounted iOptron CEM60.

Guiding - Lodestar X2 and SX OAG with PHD2.

Sequence Generator Pro

PixInsight and AstroPixelProcessor (mosaic construction).

Thanks for looking.

I totally forgot to upload this image to Flickr, but also this is a re-processed image after learning some new techniques in post processing, but this is NGC1893 / IC410 or most commonly referred to as The Tadpoles, at a distance of over 12,000 light years from earth in the constellation of Auriga

Image Details:

Red 51x150S in SII 6nm Filter

Green: 51x150S in Ha 6nm Filter

Blue: 51x150S in OIII 6nm Filter

Darks, Flats and Flat Darks were applied in the image stacking process

Total Capture time: 12.8 Hours

Acquisition Dates: Nov. 19, 2019 , Dec. 30, 2019 , Jan. 3, 2020 , Jan. 17, 2020 , Jan. 18, 2020 , Jan. 19, 2020 , Jan. 21, 2020 , Jan. 28, 2020 , Feb. 1, 2020

Equipment Details:

Imaging Camera: Qhyccd 183M Mono ColdMOS Camera at -20C

Imaging Scope: SharpStar 15028HNT Hyperboloid Astrograph

Guide Camera: StarlightXpress Lodestar X2

Guide Scope: Sky-Watcher Finder Scope

Mount: Sky-Watcher EQ8 Pro

Focuser: Primalucelab ROBO Focuser

Filterwheel: Starlight Xpress Ltd 7x36mm EFW

Filters: Astronomik 6nm Ha, OIII and SII 36mm

Power and USB Control: Pegasus Astro USB Ultimate Hub Pro

Acquisition Software: Main Sequence Software. Sequence Generator Pro

Calibration and Stacking: Astro Pixel Processor

Processing Software: PixInsight 1.8.6

This is an extremely faint but rewarding target. For this image I used 12 hours of H alpha data (73x600 sec) and 2 hours RGB data (in 120 second subs)

Esprit 100 f5.5 APO triplet/ QHY16200 @ -20C.

Acquisition dates: 25,26,27,28 en 29 september 2017.

Knight Observatory, Tomar

(Explore)

NG 2175 dans la constellation d'Orion

Planewave CDK 431 mm + FLI

New Mexico

FLI

16 x 600s Ha

13 x 600s SII

13 x 600s OIII

Astropixelprocessor

Pixinsight

Affinity Photo

Just south (to the right) of the great Orion Nebula lies the small reflection nebula NGC1999 surrounded by strings of Herbig Haro (HH) Objects. This view shows a bright Orion Nebula region and also the very faint dusty NGC1999 region. High Dynamic Range (HDR) techniques have been used to compress the dynamic range. 3 stacks made with 30, 120 and 600 second exposures (488 in total) with a total integration time of 24.6 hours. The stacks have been combined using HDRCombination in Pixinsight and further processsed with HDRMultiscaletransform and other processing steps.

Esprit 100 f5.5/ QHY16200 CCD @ -20C

Image dates:11,12,13,15,16,17,18 & 19 dec 2017 and 14,15,17,18& 19 jan 2018

en.wikipedia.org/wiki/NGC_1999

hubblesite.org/news_release/news/2011-20

Knight Observatory, Tomar

(Explore)

The Pleiades, also known as the Seven Sisters, Messier 45 or Subaru (to unite in Japanese), is an open star cluster of very hot B-type stars estimated to be between 75 and 150 million years old.

Distance to Earth: 444.2 light years

Radius: 17.49999965 light years

Constellation: Taurus

🌀🌠🌌🌟

Image Information

Telescope: Takahashi FSQ-ED 106mm | f5.0

Camera: SBIG STL-11000M CCD

Mount: Paramount PME

Exposure Details: L 6 x 300 sec, RGB 9 x 300 sec

Observatory: Mayhill Observatory, New Mexico, USA

Date Taken: 25 January 2019

Post-Processing: AstroPixelProcessor, PS

M8 y M20

30-04-2017 - 00:00 aprox. GMT -3

Recorte del original

Star Adventurer

Canon 6D - Sigma AF 70-300mm f/4-5.6 APO DG Macro @ f/5,6

ISO 1600 - 5150K - 120 segundos - DF 190mm

20 lights, 32 darks, 32 flats, 300 bias

Procesado: AstroPixelProcessor, Adobe PS y LR

Picture was taken in CZ, August 30, 2019. No astro mod. Nikon Z7 + Sigma 135/1,8 Art @ 2,2. Exposure 60 s, ISO 400. Light frames 60 x, Dark 15 x, Bias 15 x, No Flat. Tracking iOptron SkyGuider Pro, Stacked in AstroPixelProcessor, adjusted in Adobe LR + PS. Cropped 2x. North American Nebula (NGC7000) has apparent dimensions 120 x 100 arcmins and apparent magnitude 4.

Logiciels et plugin utilisés :

Lightroom, AstroPixelProcessor, BlurXTerminator (Merci @h.collis pour le passage dans le plugin de Pixinsight) , PhotoShop (Plugin HLVG, Topaz Denoise)

127 lights, 100 offsets, 100 flats, No Dark

Date: Nov.1, 2019 / Nov.29, 2019 / Dec. 27, 2019 / Feb.23, 2020

Location: Amagi Highland, Shizuoka Pref., Japan / Asagiri Arena, Shizuoka Pref., Japan

Optics: SIGMA 135mm F1.8 DG HSM | Art (f/2.2)

Mount: SWAT-310 V-spec(single axis autoguiding)

Autoguider: QHY5L-II, LM75JC, PHD2

Camera: Canon EOS 6D (mod)

ISO speed: 1600

Exposure: 30x180sec.x11panels

Processing: PixInsight, Astro Pixel Processor

Auriga is busy; DeepSkyStacker registered 50k+ stars in this extent. DSOs include the Flaming Star Nebula (IC 405), the Tadpole Nebula (IC 410), the Spider (IC 417) and Fly (NGC 1931) Nebulae, the Pinwheel Cluster (M 36), the Starfish Cluster (M 38), dark nebulae MLB 35, B 222, and CB 27 (on the lower right), and Sharpless 232, 231, and 235 (emission nebulae on the upper left, flic.kr/p/Ru8EmT).

Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Nov. 21, 2019 under Bortle 3/4 skies.

Un joyau niché aux portes du bulbe de la Voie lactée.

Chaque année, je reviens sur cette région du ciel. Pas par habitude, mais par fascination. À mesure que le matériel évolue et que l’expérience grandit, cette nébuleuse révèle toujours plus de nuances, de textures et de détails cachés. Complexe, subtile, exigeante… exactement le genre de cible qui ne se livre jamais entièrement et qui pousse à aller plus loin à chaque tentative.

- 📍 Juin 2025, Cévennes, Lozère

- ⏱ 2h d’intégration • 120 x 60s • f/2.8 • 1600 ISO

- 📷 135 mm

- 🌌 Star Adventurer • Filtre NiSi Natural Night

- AstroPixelProcessor • GraXpert • Starnet++ • Photoshop

DESCRIPTION: Orion nebula M42, Horsehead nebula, IC434 etc. Only 22 min integration time because cloudy weather.

OBJECT: Orion constellation, RA (center) 5h 37 min, DEC 0°, FOV approx 8°x 5°.

GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor Z 70-200@200, Astronomic UV/IR/L2 Clip in filter, Optolong L Pro light pollution filter, Dew heater strip, tracking mount iOptron CEM60EC

ACQUISITION: February 23, 2022, Struz, CZ, Subexposure 120s, f 2,8, ISO 800, Interval 10 s, RAW-L, Lights 11x, Darks 20x, Bias 20x, Flats 20x, DarkFlats 15x. Total exposure time 22 min. Night, cloudy, no wind, -2° C, no Moon, Backyard - Light pollution - Bortle 5.

STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralisation, light pollution removal, calibrate background and stars colours), Adobe Photoshop CC 2022 (stretching, black and white point settings, star reduction, enhance DSO, deep space noise reduction, contrast setting and sharpening). Cropped 1,5x, image size 3840 x 2560 px.

Quand l’éphémère devient éternel

——

__________________________

-

Cette photo est née d’une idée un peu folle.

Dans la semaine, je disais à ma compagne :

« Tu t’imagines… le lac est déjà là. S’il faisait beau, si tout s’alignait, on pourrait peut-être tenter de l’astrophoto au-dessus… »

—

Sauf que la météo a été implacable. Averses sur averses.

Le lac des Rives, déjà formé depuis la semaine précédente, continuait de monter. Un lac éphémère qui n’apparaît en moyenne qu’une fois tous les dix ans.

Malgré tout, ce rêve ne m’a pas quitté.

—

Puis arrive ce fameux samedi 7 février 2026. La veille au soir, je scrute encore une fois la météo, sans trop y croire… et là : stupeur. Une éclaircie annoncée, avec une fenêtre d’à peine une heure de nuit. Pas le droit à l’erreur. Un stress immense, malgré la confiance dans la technique.

Le mercredi précédent, j’étais déjà venu sur le lac, sous la pluie, pour repérer un point de vue et le chemin. Heureusement.

En trois jours, le niveau de l’eau avait encore augmenté. Et de nuit, avec pour seule lumière une frontale, tout se métamorphose.

Il a fallu traverser cinq zones d’eau, à l’aller comme au retour.

-//-

Techniquement :

▪️ Blend de deux tuiles

▪️ Ciel : 30 min de pose cumulée

▪️ Sol : 10 min

▪️ Stack / tracked / blend

▪️ AstroPixelProcessor · GraXpert · StarNet++ · Photoshop · Lightroom

Une image arrachée au temps, à la météo… et à un lac qui ne se montre presque jamais.

The Cocoon Nebula (IC5146) is around 15 light years across and some 4,000 light years away from Earth in the constellation Cygnus. It is a newly developing cluster of stars, glowing in red hydrogen gas created by the young hot stars. The bright star in the centre of the nebula is estimated to be only a few hundred thousand years old.

I captured the data for this image late last year using LRGB filters on a 20" Planewave telescope in the dark skies of New Mexico via a remote observatory. This image is two hours of data integration.

🌀🌠🌌🌟

Image Information

Telescope: Planewave 20" (0.51m) CDK Planewave 20" CDK

Imaging camera: FLI ProLine PL11002M CCD camera

Mount: Planewave Ascension 200HR

Exposure Details: Blue: 4x300" bin 1x1, Green: 4x300" bin 1x1, Luminance: 12x300" bin 1x1, Red: 4x300" bin 1x1

Observatory: New Mexico, USA

Software: Lightroom Classic CC, AstroPixel Processor

Date Captured: October - November 2018

Post-Processing: AstroPixelProcessor, Lightroom

This image shows one of my favourite regions in the Northern skies. It's the region surrounding the star Sadr in the constellation of Cygnus. This image was made using astrodon narrowband filters for Ha (5nm), OIII (3nm) and SII (5nm).

Equipment used was a TMB92 with a QSI583ws ccd camera cooled to -20C.

Processing done with Astropixelprocessor and photoshop.

Exposures used:

42 x 900s Ha

20 x 900s OIII

15 x 900s SII

Total: 19,25 hours

I've been looking forward to this conjunction for months - ever since deciding to get into astrophotography last year.

In the event, many practice runs shooting the Pleiades were useful, if not for image data as I'd hoped but at least for getting familiar with setting up the tracking mount and camera in quick order to catch a few photons during a committee meeting.

Sony A7r3 with K&F light-pollution filter:

38 lights: ISO 800, f/6.3, 30s, pixel-shift

78 bias frames

96 darks

24 flats

Stacked in AstroPixelProcessor, finished in Affinity.

Messier 78 is a reflection nebula which means that it contains very little ionized gas and merely reflects the light of the nearby stars and lies at an approximate distance of 1,600 light years from Earth. The nebula is located only about 2 degrees north and 1.5 degrees east of Alnitak, the easternmost star of Orion’s Belt. The dark filamentary dust not only absorbs light, but also reflects the light of several bright blue stars that formed recently in the nebula. Two early B-type 10th magnitude stars in M78, HD 38563A and HD 38563B, are responsible for illuminating the nebula’s dust clouds. A part of Barnards loop is visible in the upper right.

Technical information: Esprit 100 APO refractor/ QHY16200 CCD @ -20C. Imaging dates: 6,7,8,9,10 oct, 13, 16 nov. 2018. 93x300 sec Red, 86x300 sec Green, 100x300sec Blue (23 hrs). Calibrated with 120 darks, 260 bias and 3x 25 Flat frames.

Processed with AstroPixelProcessor and Pixinsight.

Knight Observatory, Tomar

Date: 21:30-25:05JST Aug.3, 2019

Location: Amagi Highland, Shizuoka Pref., Japan

Cloud Coverage: 5 ~ 40% (foggy)

Wind: Calm

Temperature: 17.9C ~ 18.7C

Humidity: 93 ~ 95%

Air pressure: 899hPa

Lens: SIGMA 70mm F2.8 DG MACRO | Art (f/3.2)

Mount: SWAT-310 (single axis autoguiding)

Autoguider: QHY5L-II, LM75JC, PHD2

Camera: Canon EOS 6D (SEO-SP4)

ISO speed: 1600

Exposure: 8x180sec.x3panels

Processing: PixInsight, Astro Pixel Processor

updated on Aug.12, 2019

Bonjour pour rappel :

Exifs :

D7100A, 50mm f/1.4, Star Adventurer

Stack de 110 photos à f/2, 1600 iso, 30sec (Soit un signal de 55min)

Lr pour le tri,

Empilement avec Starry Sky Stacker,

Traitement avec AstroPixelProcessor, Photoshop, Topaz Denoise, Starless++

Image Details:

Scope: A-P 130mm EDFS @ f/6.44 (no flattener)

Camera: QSI 6120

Filters: Astrodon 3nm

Mount: Takahashi EM-200

Guiding: QHY 5LII-M & Mini Guidescope (PHD2)

Image Capture: Sequence Generator Pro

Processing:

Preprocessing and Color Palette with AstroPixelProcessor, PixInsight, Final color edits with Photoshop

Location: Central District, Seattle, WA

Ha: 43x10min

OIII: 27x10min

SII: 25x10min

Total integration time = 950 min ~ 15.8 hours

Here's the second in my series of objects shot with the RASA8 during our recent clear stretch (also from my light-polluted backyard).

Taking flat frames with the RASA turned out to be very easy: After I parked the scope (towards Polaris and safely away from the Sun!!), I just shot my flats pointed right at the clear, blue sky.

The advantage to this method is that it's incredibly simple - no need to set up a flat panel or figuring out how to get a flat panel to sit on top of the gear at the front of the RASA. The disadvantage is that your color balance will be MAJORLY messed up in your calibrated frames. Fortunately, you can recover the white balance in post-processing. :-)

Image details:

60x2min

=2 hrs integration time

Celestron RASA 8" f/2 Astrograph

Celestron RASA Light Pollution Reduction filter

ZWO ASI294MC-Pro Camera @ -15-degrees C

QHY Mini guide scope with ZWO178MC guide camera.

Sequence Generator Pro

PHD2

Stacking, HDR Composition, and additional processing with PixInsight

Background gradient removal with AstroPixelProcessor

Location: Central District, Seattle

2-panel mosaic, each 10x4min., Nikon 200-500mm f/5.6@500mm.

Dati: 85 x 300 sec ( 7 ore) gain 5 @ -15° c + 117 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: asi120mm su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 12 ° C - Umidità 95%

The Andromeda Galaxy with satellite galaxies M32 (centre right below) and M110 (centre above)

The Andromeda Galaxy (IPA: /ænˈdrɒmɪdə/), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy with diameter of about 46.56 kiloparsecs (152,000 light-years)[8] approximately 2.5 million light-years (765 kiloparsecs) from Earth and the nearest large galaxy to the Milky Way. The galaxy's name stems from the area of Earth's sky in which it appears, the constellation of Andromeda, which itself is named after the princess who was the wife of Perseus in Greek mythology. (Wikipedia)

Mount: Sky Watcher “Star Adventure 2i”

Guiding: N/A

Filter: N/A

Camera: Canon EOS R7 (None modified)

Canon EF 70-200mm L USM f2.8 IS

Focal length: 200mm

125 frames - ISO 640 - f3.2 - 60 second

Darks: 15

Flats: 15

DarkFlats: N/A

Bios: 15

Bortle 5.5

Processing: AstroPixelProcessor > Photoshop >Topaz > Photoshop

I have added Sii and more Oiii narrowband to an earlier image of this shot in HOO + L and RGB for stars. The longest capture time for me so far totalling 35.5 hours,.

The Bubble Nebula is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbour, Alpha Centauri – and resides 7,100 light-years from Earth in the constellation Cassiopeia. For perspective, I worked out that it would take a Voyager Spacecraft about 140,000 years to travel across the Bubble Nebula.

Ha, Oiii, LRGB 6 to 10 August 2022 -Moon 50% to 96% but nice and low and setting during the sessions. Sii and more Oiii 21,22,26,31 August 2022 - Moon 29% to 18%.

RGB Stars 60s x 30 for each filter

L 60s x 180 + 120s x 51

Sii 300s x 77

Ha 300s x 118

Oiii 300s x 153

35.5 hours total

Astromiks 36mm SHO 6nm Filters

30 x Darks, Flats (for each filter) and Dark Flats

ZWO ASI294MM Pro 120 gain, -10C

ZWO 7x36mm EFW

ZWO EAF

Stellalyra 8” Ritchey-Chrétien Carbon

EQ6-Pro

ASIAIR Plus

Astro Pixel Processor

Pixinsight

Photoshop 2022

A first attempt at the well-known triangle of galaxies known as the Leo Triplet.

On the top, NGC3628 aka the Hamburger galaxy; below, M66 and M65.

I'm particularly pleased to have got 3 extra bonus galaxies in the frame: right up in the top-left the tiny fuzzy IC2782, with IC2776 just below and IC2763 in the middle of the left edge of the frame.

Nearly two hours' data, Altair 26C at gain 100 with Neodymium filter, 3-minute subs, and plenty darks+flats+bias calibrations as well.

Dati: 131 x 300 sec ( 10.92 ore) gain 5 @ -20° c + 38 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: asi120mm su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 7 ° C - Umidità da 55 a 70%

Comet C/2023 A3 (Tsuchinshan-ATLAS) October 20, 2024.

24 frames, 60 sec. each

Explore Scientific ED102 102mm f/7 apochromat refractor, Stellarvue 0.8x reducer/flattener

ZWO ASI294MC Pro cooled color CMOS camera, gain 120, -17ºC, ZWO UV/IR cutoff filter

ZWO EAF autofocuser

iOptron CEM25P mount

ZWO ASIAir Pro controller

auto-guided, SVBONY SV2165 30mm f/4 guide scope, ZWO ASI120MM Mini guide camera

Processed in Astro Pixel Processor, Adobe Photoshop Lightroom

#comet #TsuchinshanATLAS #astrophotography