25x600 seconds, Esprit 100 f5.5/QHY16200 @-20C. (This is a detail from a 72 panel Orion Mosaic i am working on.)

Knight Observatory, Tomar

20x180 sec, Nikon 200-500mm f/5.6 @500mm, ZWO ASI294MC Pro, iOptron CEM25P, Astro Pixel Processor, Lightroom.

This is the full Messier 42 (etc) view also showing the NGC1999 region at lower right.

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

D5300 Nikon 500mm Catadioptric Mirror Lens. 30sec f/8 ISO 400.

Captured in Astro Photography Tool. 140 Lights, 30 Darks, 30 Flats, 30 Bias frames. LR, AstroPixelProcessor, PS. Sky-Watcher Star Tracker. (The D5300 is used vs the D610 for the smaller pixel size- 3.89 microns vs 5.97 microns- to avoid undersampling.)

What a joy to capture the spectacular "Jellyfish Nebula" in Gemini with the 2600MC and the RASA 8! I just love the nebula's shape, color and structure! I spent two nights on capturing Ha and OIII with the IDAS NBZ dualband filter and RGB stars without filter. Hope you like it!

Celestron RASA 8

Celestron Motorfocuser

EQ6-R Pro

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)

RGB: 53 x 120" (1h 46')

Ha & OIII: 73 x 240" (4h 52')

Darks, Flats, Darkflats, Dithering

Guiding: ZWO ASI 120MM & PHD2

N.I.N.A., Astropixelprocessor, Photoshop, Pixinsight

Matériel :

* Samyang 135mm f2 @samyangfrance

* Filtre Nisi Natural Night @nisifrance

* Monture équatoriale StarAdventurer

-

-

Prise de vue :

* 200 lights soit 3h20, une minute par light

* 100 bias

* 100 flats

* No Dark

* Bortle 2,5 - 3

-

-

Traitement :

* Lightroom,

* AstroPixelProcessor,

* Photoshop (HLVG/Topaz Denoise)

45x240s, 200-500mm f/5.6 @500mm

6 hours total on M81 and M82

Stacked in AstroPixelProcessor and processed in PixInsight

QHY163m camera

With one of the more spectacular views in the night sky, Thor's Helmet Nebula (NGC 2359) features a bubble shaped emission nebula. This bubble (containing hundreds of solar masses of ionized material) appears to be getting blown by solar wind coming from the central star. This is a rare type of central star known as a Wolf-Rayet star which runs extremely hot and is thought to be in a pre-supernova stage.

Calibrated images of Thor's Helmet Nebula were provided by iTelescope.net. In addition to providing access to their telescopes, iTelescope.net provides subscribing members with a combination of premium image sets (with the rights to use & post them) and webinars that show how to process them. Itelescope.net captured the images and I did the post-processing with Astro Pixel Processor, Photoshop and Topaz Sharpen AI. Star spikes are natural.

Exposure Settings

• 27 images (9 red, 9 green & 9 blue)

• Exposure Time: 10 minutes (each image)

• Total Exposure Time: 270 minutes

M101 is about 25 million lightyears away from us. Its spiral arms show several "knots" that are regions of star forming.

101 x 180s @ ISO 800

Pentax K3ii and TS 130/910 APO

This is the version stacked with AstroPixelProcessor.

The Hamburger Galaxy NGC 3628 is about 35 million lightyears away in the constellation Leo. This is a crop of my image of the Leo Triplet which I shot with my 910 mm refractor.

The image was composed from 120 images with DeepSkyStacker, AstropixelProcessor and Photoshop

The Hercules Globular Cluster is composed of several hundred thousand stars and is about 24,000 light years away from Earth. The stars are so densely packed together they sometimes collide to form new stars called ‘blue stragglers’ which can clearly be seen in the image (zooming in helps!).

A globular cluster is a spherical collection of stars bound by gravity. Globular clusters in spiral galaxies like the Milky Way are found in the galactic halo which is the outer spheroidal part of the galaxy rather than found in the galaxy’s disc. Globular clusters tend to have older more massive stars and are composed of fewer heavy elements than open clusters. There are more than 150 Globular Clusters in the Milky Way. [Wikipedia]

Imaged from my UK back garden, Bortle 5, in Nautical dark (no Astro dark :-( ) on 31st May 2021 with:

- C925 Edge HD on CGX mount

- ASI 533MC Pro OSC camera

- ASI 120MM guidecam

Stack of 48 x 180s bin 2x2 with camera at 139 gain and -15degC

Processed with AstroPixelProcessor, StarTools and Affinity

im Sternbild Schwan. Ein Supernova Überrest.

Je 9x3min in RGB, 81min Gesamtbelichtungszeit. Bearbeitet mit AstroPixelProcessor, Photoshop , Starnet. Datensatz von iTelescope.net: Takahashi FSQ-ED APO 106mm, f/5, SBIG STL-11000M CCD Kamera.

Galaxy IC342 at 10.7 Million lightyears distance is seen here obscured by the dust and gas in the plane of our Milky way Galaxy. That is why IC342 has a reddish color.

LRGB data (11.6 hrs Luminance+12.5hrs RGB) shot on 15,16,17,18,19 and 20 November 2017. Esprit 100 refractor with QHY16200 Mono CCD camera @-20 Celcius.

Processed with AstroPixelProcessor and Pixinsight.

Wikipedia: en.wikipedia.org/wiki/IC_342

Knight Observatory, Tomar

In Explore 20180401

A stereo pair of Comet C/2021 A1 (Leonard) as it moves through the sky. Early this morning (3 December) it passed in front of the nice globular cluster M3. From suburban Bloomington, Indiana, with no Moonlight but plenty of light pollution.

75 frames, each 90 sec. (nearly 2 hours total exposure), processed in Astro Pixel Processor, once to register on the comet, again to register on the stars, processed in Lightroom and composited in Photoshop.

Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut fillter, iOptron CEM25P mount, ASIAir Pro controller.

I made this image with the Esprit 100 APO refractor and QHY16200 CCD. R,G and B filters, 64x120 seconds each. Ha (6nm) filter 17x900 seconds (total integration: 10.6 hrs.). 10,11,12,13,14 and 15 November 2017.

Stacks made with AstroPixelProcessor and further processing with Pixinsight (Histogram, RGB+ NBRGBCombination, Curves)

Knight Observatory, Tomar.

Comet C/2023 P1 (Nishimura) September 3, 2023. This comet is bright enough to photograph with a small telescope and should be visible in binoculars (I didn't try until the sky was too bright so didn't see it), but not naked eye. The nice, long, straight tail stretches nearly to the corner of this frame.

Composite of 20 exposures, 2 minutes each. Explore Scientific ED102 102mm f/7 apochromat, ZWO ASI294MC Pro cooled CMOS camera, ZWO UV/IR cutoff filter, Losmandy GM811G mount, ASIAir Pro controller, autoguided. Processed in Astro Pixel Processor, Lightroom, Photoshop

53x6-min.

A starless process of the Elephant's Trunk nebula captured in narrowband (Ha, S2 and O3) then processed in the Hubble Palette (SHO)

Stacked in AstroPixelProcessor

Processed in PixInsight and Photoshop

This HII complex on the border of Monoceros and Canis Major. Covers about 3 degrees of sky, The nebula lies in one of the farthest arms of our Milky Way galaxy and is about 100 light years across.

The head of the Seagull is Vdb 93. Also contained within the nebula are the open clusters - NGC 2343, NGC 2335, Collinder 465, and Collinder 466.

This is a HaRGB Combination from the Canon 6Da RGB data from march 8, 10 &11 2016 and Ha data shot with QHY16200 on november 17,18,19 &20 2017. (3 hrs RGB+7 hrs Ha)

telescope: Esprit 100 f5.5.

Knight Observatory, Tomar

Part of the supernova remnant known as the Veil Nebula or Cygnus Loop. The result of a star that blew itself apart in a gigantic explosion several thousand years ago.

60 300 sec. exposures (5 hours total exposure), Celestron C5 with f/6.3 focal reducer/corrector (900mm focal length), ZWO ASI294MC Pro camera, dual narrow-band filter (H-alpha+[O III]), ZWO ASIAir controller, iOptron CEM25P mount, processed in AstroPixelProcessor and Adobe Lightroom.

30-04-2017 - 01:00 aprox. GMT -3

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

16 lights, 19 darks y 300 bias

AstroPixelProcessor, Photoshop y Lightroom

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: No Filter

G: PHD2

GC: ZWO ASI120mini [OAG]

RAW16; FITs

Temp: -15 DegC

Gain 200;

25 x Exp 15s

Frames: 25 Lights; 50 Darks; 50 Flats

60% Crop

Capture: SharpCap

Processed: APP; PS

Sky: No moon, calm, 30%cloud, mild, good seeing.

The constellation Orion is beginning its winter trek across the sky. One of many gems in that area of the sky is the amazing complex near the bright star Zeta Orionis, one of the three stars in Orion's belt. Here are the Horsehead Nebula, a.k.a. Barnard 33, and the Flame Nebula, a.k.a. NGC 2024, among other, smaller features.

November 12, 2021. 1x3 mosaic, each panel 8 6-minute exposures (2.4 hours total). Explore Scientific FCD-100 102mm telescope, ASI294MC camera, dual narrow-band filter (H-alpha, [O III]), iOptron CEM25P mount, ASIAir controller, processed in Astro Pixel Processor and Lightroom.

Easily the largest Seagull ever seen, by light years ;-)

The Seagull Nebula (Sh2-296) lies just on the border between the constellations of Monoceros (The Unicorn) and Canis Major (The Great Dog) and is close to Sirius, the brightest star in the night sky. The nebula lies more than four hundred times further away than the famous star.

The complex of gas and dust that forms the head of the seagull glows brightly in the sky due to the strong ultraviolet radiation coming mostly from one brilliant young star HD 53367.

The radiation from the young stars causes the surrounding hydrogen gas to glow. Light from the hot blue-white stars is also scattered off the tiny dust particles in the nebula to create a contrasting blue haze in some parts of the picture.

Spanning about 100 light-years from one wingtip to the other, Sh2-296 displays glowing material and dark dust lanes weaving amid bright stars.

It is a beautiful example of an emission nebula, in this case an HII region, indicating active formation of new stars, which can be seen peppering this image.

The Seagull Nebula complex was observed for the first time by the German-British astronomer Sir William Herschel back in 1785.

SHO Taken between 22 and 27 February 2022 (65% - 13% Moon), RGB stars taken 7 March 2022 (22% Moon). Last chance to capture this target for me in my location for 2022, but also my first attempt. I could have squeezed in Thor’s Helmet if I had rotated the camera but I didn’t want to change the optics at this point. I could only manage 2.5 hours a night due to the target getting lower by this time of year, and crashing into a neighbours tree.

I spent far too many hours processing and reprocessing using new and different Pixinsight work flows to get the best from the data, and of course I would like to start over again, but time to let this big bird free until I capture it again next time around.

Sky Quality 19.67 Magnitude Class 5 Bortle.

Astromiks 50mm SHO 6nm Filters

Sii=26 x 300s + 19 x 180s

Ha=27 x 300s + 18 x 180s

Oiii=14 x 300s + 17 x 180s

RGB Stars 46 x 60s x 3

10 hours 10 minutes total

30 x Darks, Flats and Bias

ZWO ASI6200MM Pro

ZWO 7x2" EFW

ZWO EAF

Williams Optics GT81 IV

WO 6A III Field Flattener 0.8

HEQ5 Pro Rowan

ASIAIR Pro

Astro Pixel Processor

Pixinsight

Photoshop 2022

A portion of the star-forming nebula IC 1396, or the Elephant Trunk Nebula in the constellation Cepheus. 3-panel mosaic, each 20 300 sec. exposures (5 hours total exposure). Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, dual narrow-band fillter (H-alpha and [O III]), iOptron CEM25P mount, ASIAir Pro controller, processed in Astro Pixel Processor and Lightroom.

Perchée à près de 1000 mètres d’altitude (913 mètres exactement), la majestueuse Tour de Peyrebrune veille fièrement sur les contreforts du Lévézou. Nichée au sommet d'Alrance, elle offre une vue imprenable sur le lac de Panat, dans un cadre naturel à couper le souffle. Jadis, au Moyen Âge, cet endroit abritait un château fort et un ensemble de fortifications, témoins d’un passé riche en histoire.

—

Mon objectif était simple : jamais je n’avais vu de photo de la tour prise en astrophoto, un vide qu’il me fallait impérativement combler. La plus grande difficulté résidait dans la recherche du point de vue parfait, suffisamment dégagé pour laisser apparaître, sous un ciel étoilé, Orion, les Pléiades et la splendide nébuleuse de la Californie.

__________________________

——

Ciel : 25min (25x60sec)

Sol : un seul cliché de 30sec sur le lever de lune

—

Logiciel utilisé : AstroPixelProcessor, GraXpert, Starnet++, Photoshop & Lightroom

Dati: 17 x 480 sec ( 2.27ore) 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: 10 ° C - Umidità 45%

I wanted to include the Perseus molecular cloud in the same extent as the California Nebula, but it didn't quite fit in the 1.5x-crop-factor field of view of my Fuji + Samyang 135mm lens, so I shot a mosaic of 4 panels. I thought snct astro did a great job framing the extent here (flic.kr/p/2kcoAZu), so I imitated their framing.

Panels were 26, 30, 22, and 37 x 1 min integrations and overlapped substantially, so most areas were covered by more than one panel. I also added 50 x 1 min of imagery of the Perseus Molecular Cloud from Nov. 20, 2019 (flic.kr/p/2hNZ6iA). So in total this is 165 minutes worth of data.

Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, tracking with iOptron SkyTracker Pro, stacking of individual panels done with DeepSkyStacker, flattening of individual panels and mosaicking done with Astro Pixel Processor, editing in GIMP.

Skies were Bortle 3/4 for the 4 panels shot on Dec. 5, 2020, and Bortle 2/3 for the 50 exposures from Nov. 20, 2019.

It was fun discovering the planetary nebula NGC 1514 below the California Nebula as I processed this. Even though it's tiny at 135mm, it was very apparent that it was a planetary nebula rather than a star.

M81 (Bodes Galaxy) Spiral Galaxy found in the constellation of Ursa Major.

M: iOptron iEQ45-Pro

T: Celestron C8 SCT

C: ZWO ASI1600MC-Cooled

G: OAG and PHD2

GC: ZWO ASI220MM

RAW16; FITs

Temp: -10 DegC

Filter: No Filter

Gain 139; Exp: 32 x 120s

Frames: 32 Lights

Cal Frames: DarkFlats/Flats

Total Exposure: ~64 mins

95% Crop

Capture: NINA

Processed: APP; PS.

Sky: No moon, no breeze, no cloud.

Dati: 57 x 300 sec ( 4.75ore) 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: 5 ° C - Umidità 50%

note: PRESENZA DI VELATURE IN CIELO

SN2020ue was discovered on 12 january 2020. It is a type 1a supernova in elliptical Galaxy NGC4636 at 55 Million Lightyears. I made this image on 20 jan 2020 (02:00-04:00), 21 x 300 seconds luminance. Stacked in Astropixelprocessor with 2 x drizzle and processed/annotated in Pixinsight.

Asteroid 1989 Tatry moved through the narrow field of view (Identified with the Minor planet center MPC checker) It is an inner main belt Asteroid with 17km diameter.

www.rochesterastronomy.org/supernova.html#2020ue

en.wikipedia.org/wiki/1989_Tatry

en.wikipedia.org/wiki/Type_Ia_supernova

When you look at the Rosette Nebula, you're seeing raw materials making a transition into stars, planets, and eventually life. With a balance between creation and erosion, these same processes formed our sun. Every atom of oxygen, carbon, and iron in our bodies came from environments like this. Looking at the colors, we're seeing orange hydrogen gas, (mostly) pink dust, and blue light coming from hot stars that emit so much radiation that they burn away the hydrogen from the center.

The Rosette Nebula goes by a few names including the less than exciting "Caldwell 49". With the circular shape, I think it should have gotten something more fitting like "Homer's Donut". At least the state of Oklahoma was quick to adopt it as their official astronomical object.

Images for this 2x1 mosaic were provided by iTelescope.net. In addition to providing access to their telescopes, iTelescope.net provides subscribing members with a combination of premium image sets with the rights to use them and webinars that show how to process them. I was planning on shooting the Rosette Nebula someday and so I was very happy to see the webinar and the images from that same area. It was extra nice that they included images that came from 3 hours, 35 minutes of capture time - giving me potential for very good image quality.

I did my processing with Astro Pixel Processor, Photoshop and Topaz Denoise. Star spikes are natural.

Exposure Settings

• 26 images (12 red, 8 green & 6 blue)

• 17 images (6 red, 6 green & 5 blue)

• Exposure Time: 5 minutes (each image)

• Total Exposure Time: 3 hours, 35 minutes

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

Telescope Optics & Camera

• Optics: Planewave 24" CDK (T24 Reflector)

• Focal Length: 3,962 mm (deep field)

• CCD: FLI-PL09000 (9.3 megapixels)

M42 Nebula from the Alps

Canon 80D 1600 ISO + 300mm F6.4 + Astrotrac

540 * 30 seconds RGB + 160 * 30 seconds Ha

AstroPixelProcessor + Pix + Affinity

Horseheadnebula IC434 as famous member in the Orion constellation. HaRGB mode. Around 10 hours of integration. It’s ~1500 Lightyears away from the earth. Diameter ~3 Lightyears. Postprocessing in Astropixelprocessor, Pixinsight and Photoshop.

Camera was #qhy268m

#C11 at 2000mm focal length

#EQ8R

#youresa

#astrophotography #longexposure #galaxy #neustadtanderweinstrasse #apod #jwgermany #jw #jwphotography #jw_snapshots #passioneastrofotografia

M65; M66; NGC3628 Found in the constellation of Leo.

Revisited to see if I have learnt anything at all over the last year!

M: Pegasus NYX-101

T: WO GTF81 Refractor

C: ZWO ASI533MM-Cooled

G: OAG and PHD2

GC: ZWO ASI120MC

RAW16; FITs

Temp: -10 DegC

Ha: Gain 100; Exp: 16 x 200s

Oiii: Gain 100; Exp: 16 x 200s

Sii: Gain 100; Exp: 16 x 200s

R: Gain 100; Exp: 16 x 100s

G: Gain 100; Exp: 16 x 100s

B: Gain 100; Exp: 16 x 100s

L: Gain 100; Exp: 16 x 100s

Frames: 112 Lights; Darks/Bias/Flats to calibrate.

Total Exposure: ~4.4 hours

80% Crop

Capture: NINA

Processed: APP [LRGBHSO]; PS.

Sky: No moon, no breeze, no cloud.

Reprocesado con AstroPixelProcessor y Lightroom de flic.kr/p/UG6wey

M 81 and M 82 are truly „iconic“ deep sky objects! I spent more than 17 hours on capturing this widefield, comprising „Bode’s Galaxy“, the „Cigar Galaxy“, some smaller galaxies nearby (like NGC 3077 and NGC 2976) and the galactical cirrus, that consists of dust within our own galaxy's disk.

To create a picture from RGB, H-Alpha and Luminance data and keep the balance between both, the bright galaxies and the faint cirrus, was a real challenge and took me many, many hours. Hope you like it!

Celestron RASA 8 f/2

Celestron Motorfocuser

EQ6-R Pro

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°):

RGB (no Filter): 420 x 60 (7h)

TS 2600 MP (Gain 100, Offset 50, -10°):

Ha (Baader H-alpha Highspeed Ultra-Narrowband 3.5nm Filter): 100 × 120 secs (3h 20')

Luminance (Baader Baader UV/IR Cut Filter): 475 × 30 secs (3h 57′ 30″) & 182 × 60 secs (3h 2')

Total: 17h 19′ 30″

Flats, Darkflats, Dithering

N.I.N.A., Guiding with ZWO ASI 120MM and PHD2

Astropixelprocessor, Photoshop, Pixinsight

RC8 at f/6

QHYCCD Minicam8

HaRGB split over 5 hours total.

60 sec. subs.

Processed with Astro Pixel Processor, GraXpert, NoiseXTerminator and Affinity Photo.

Comet 67P/Churyumov-Gerasimenko passes through the constellation Gemini on three consecutive nights: November 6, 7, and 8, 2021 (right to left), near the closest it will come to the Earth in its orbit. This is the brightest comet in the sky right now, though still not really very bright at all. ESA's Rosetta spacecraft orbited Comet 67P and the Phillae probe landed on it back in 2014. The orange-ish star at upper right is upsilon Geminorum, one of the bright stars in Gemini.

This is a composite of multiple exposures taken over several hours on each of the three nights. These were combined to produce a panoramic view of the background and of the comet on each night.

#astrophotography

A colour take on the Andromeda Galaxy (M31). Taken through Red/Green/Blue & Helium-alpha filters on a monochrome astrocamera. The result is a 4 panel mosaic of 15 minute (10 x 90s) exposures on each panel.

T: William Optics 81GTF.

C: ZWO ASI533MM-Pro.

M: Pegasus NYX-101.

G: OAG & ZWO ASI220MM.

R: Pegasus Falcon V2.

F: ZWO Electronic Filter Wheel (RGBHa only).

S: NINA to Capture and APP & Photoshop to process.

Equipo: Star Adventurer - Canon 6D - Sigma 70/300 APO

24 lights - 19 darks - 32 flats - 100 bias

120s - f/6,3 - ISO 3200 - 190mm - 4000K

Procesado: AstroPixelProcessor - Photoshop - Lightroom

The Butterfly Nebula (IC 1318) in the constellation of Cygnus is one of the most popular objects in the summer sky. Surrounding the supergiant star Sadr (Gamma Cygni), there is a variety of gas and dark nebulae that make this area incredibly fascinating! I had heard that there is a relatively high amount of SII emission in this region, and indeed, that turned out to be true. I captured a total of 9.5 hours of exposure at f/2, to create this SHO version.

Celestron RASA 8 (400mm f/2)

Celestron Motorfocus

EQ6-R Pro

TS 2600 MP (Gain 100, Offset 50, -10°)

Baader H-Alpha Highspeed 3.5nm: 95 × 120″ (3h 10′)

Baader O-III Highspeed 4nm: 95 × 120″ (3h 10′)

Baader S-II Highspeed 4nm: 96 × 120″ (3h 12′)

Total: 9h 32‘

N.I.N.A., Guiding: ZWO ASI 120MM & PHD2

Astropixelprocessor, Photoshop, Pixinsight

Orion Nebula—same data as in www.flickr.com/photos/mikejolley/50621468907/, but with some alternative processing. These were done in AstroPixelProcessor instead of DeepSkyStacker.

Orion nebula (M42) - Celestron Origin

© Julian Köpke

Bortle class 4, 60 minutes drive from Brisbane

35 * 120 seconds

temp =10 deg

gain = 300

ZWO ASI 294 with Olympus Om 50mm lens

Skywatcher Star Adventurer polar aligned with Polemaster

The Cats Paw and Lobster visible in the top left.

Calibrated in AstroPixelProcessor with darks flats and dark flats

The bright object is Jupiter

M13, located in the constellation Hercules, is one of the brightest and most spectacular globular clusters in the northern sky. Approximately 500,000 stars are packed into a region with a diameter of 150 light-years at a distance of 25,000 light-years. The red and blue giant stars appear in yellowish and bluish hues.

With this reprocessing, I was able to make a large number of very faint stars visible in the outer regions of the cluster, making M13 appear significantly larger compared to my first version. Hope you like it!

Skywatcher 200 1000 f5

TS - Optics coma corrector

EQ5

ASI 533 mc pro (Gain 100, Offset 15, - 15°)

180 x 60 secs, Darks, Flats, Darkflats

No filter

Guiding: ASI 432 MC & PHD2

N.I.N.A., APP, PS, Lacerta Flatfieldbox

Bortle 5

Astropixelprocessor, Photoshop, Pixinsight

✨ Sous le ciel étoilé de l'Aubrac… 🌌

Dans la pureté du plateau de l'Aubrac, entre l'Aveyron et le Cantal, j'ai réalisé cette image au buron de la Lande du Clapier, situé à près de 1300m d'altitude. Un endroit qui, loin de la pollution lumineuse, offre un spectacle céleste d'une rare intensité.

Le ciel est une toile vivante : des nébuleuses comme celle de la Californie, qui semble s'étirer à l'infini, la majestueuse nébuleuse et constellation d'Orion, qui éclaire la nuit de sa lueur éclatante, avec sa boucle de Barnard, un cercle d’étoiles dansant dans la profondeur du cosmos. 🌠

Jupiter, la planète géante gazeuse, surplombe cette scène, tandis que les Pléiades scintillent dans leur halo bleuté.

Cette photo témoigne d’une passion profonde pour l’astronomie et la nature, un mélange entre art et science, où chaque élément du ciel trouve sa place dans un équilibre parfait. ✨🌍

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Techniquement c’est un tracked/stacked/blended autrement dit un empilement avec suivie à la monture équatoriale de 25min pour le ciel avec un grand angle composé en 25x60secondes et d’un autre empilement de 5min pour le sol en 5x60sec. — Traitement avec AstroPixelProcessor, GraXpert, Starnet++, Photoshop et Lightroom uniquement pour l’export.

A mosaic of a region of active star formation in the constellation Cassiopeia. near the center is an interesting feature known as the Bubble Nebula (NGC 7635), quite small in this large scale image. Above and to the left of that is a nice open star cluster known as M52, and to the right is another bright star-forming region, NGC 7538.

Tech: 8 tiles, each 12 5-minute exposures. ZWO ASI294MC camera, Explore Scientific FCD-100 102mm telescope, dual narrow-band filter (H-alpha, [O III]), iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor and Lightroom.

VdB 14 & 15 (left in the picture) are two very beautiful reflection nebulae, which also contain a few reddish emission components and belong to an even larger dust cloud in the inconspicuous constellation Camelopardalis. VdB 15 is the larger, lower area of the nebula and surrounds the star CE Cam, a variable supergiant. VdB 14, the upper part of the nebula, is located near the star CS Cam, which is also a supergiant. The distance to earth is around 3,000 lightyears.

The open star cluster Stock 23 can be found on the right in the picture and is also a nice object for visual observation. Its distance is estimated at 1,240 lightyears and it is surrounded by several spectacular dark clouds. It is embedded in the large but faint emission nebula SH2-202, which extends over the entire right half of the picture.

Equipment:

Celestron RASA 8 f/2

Celestron Motorfocuser

EQ6-R Pro

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)

RGB (no filter): 300 × 30″ (2h 30′)

RGB (IDAS LPS-D3 Filter): 260 × 120″ (8h 40′)

TS 2600 MP Mono (Gain 100, Offset 50, -10°)

Ha: (Baader H-alpha Highspeed Ultra-Narrowband 3.5nm Filter): 130 x 60 (2h 10')

Total: 13h 20'

Flats, Darkflats, Dithering

N.I.N.A., Guiding with ZWO ASI 120MM and PHD2

Astropixelprocessor, Photoshop, Pixinsight

Date: November 23, December 8 & 15, 2022

Location: Hannover, Germany (Bortle 5-6)