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%

After another clear night I had a chance to put together a little gallery of the flyby of Comet C/2022 E3 (ZTF). While there are variations in color and brightness due to differences in exposures and processing, it does show dramatic changes as the comet moved through the Solar System. Some of the variation is due to changes in the comet's structure, while others are because of our seeing it from different perspectives. The top two are before closest approach to Earth and the bottom two just after.

Well, that's a surprise! Sure looks like a bright meteor photobombed my latest image of Comet C/2023 A3 taken through my smaller telescope. At least I'm pretty sure it's a meteor. I thought it could have been a bright satellite glint or aircraft, many of which inhabit a large fraction of my images. But I couldn't find a bright satellite at this location and time in SkySafari, which maintains an accurate list, and It doesn't really look like an aircraft trail, which usually have multiple solid streaks with shorter dashes from the flashing lights.

It appeared in one of 90 60 second frames taken on the evening of November 1st from suburban Bloomington, Indiana. This is a composite of the frames, combined to register on the comet moving against the stars, and again to register on the stars. The single frame with the meteor was added as a separate layer.

#astrophotography #comet

Explore Scientific ED102 102mm f/7 apochromat refractor

ZWO ASI294MC Pro cooled color CMOS camera, gain 120, -20ºC, 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, Lightroom, and Photoshop

The region of the Cone Nebula (NGC 2264) in the constellation Monoceros, a large complex of dust and gas forming new stars. At bottom right is another feature, a much smaller cloud of mostly dust (NGC 2261) reflecting light from a star. The star's brightness varies so the reflected light does too. For this reason it's known as Hubble's Variable Nebula, named after Edwin Hubble, the astronomer who discovered it, not the orbiting telescope.

Tomada el 26/03/2018 00:00

Canon 6D - Filtro Optolong L-Pro - Star Adventurer

16 tomas de 120s - No hay archivos de calibración

ISO 800 - Lente Sigma 70/300 APO en 200mm @f/8 - Crop 2945 x 2166

Procesado: AstroPixelProcessor y Lightroom

Dati: 24 x 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: 22 ° C - Umidità 45%

Messier 27 (M27), also known as the Dumbbell Nebula, Diabolo Nebula or Apple Core Nebula, is a planetary nebula in Vulpecula. The Dumbbell Nebula is extensive and bright, making it popular among amateur astronomers. It can be seen in binoculars and small telescopes.

The nebula covers an area of 8 by 5.6 arc minutes of the apparent sky and has a linear radius of 1.44 light years. Its faint halo stretches out to more than 15 arc minutes. M27 lies approximately 1,360 light years, or 417 parsecs, from Earth and has an apparent magnitude of 7.5. It has the designation NGC 6853 in the New General Catalogue.

Source: www.messier-objects.com/messier-27-dumbbell-nebula/

Imaging session: September 15, 2023

Sky quality:l Bortle 5 (approx.)

Mount: iOptron CEM40G

OTA Imaging: Skywatcher 120ED with x0.85 flattener, f6.35, 768mm

Camera: ZWO ASI533MM Pro, Cooled to -10 deg C

Filter Wheel: ZWO EFW Mini

Focuser: Primaluce Lab ESATTO

Rotator: Primaluce Lab ARCO

Guiding: iOptron iGuide, 120mm: 2.9um

Computer: Primaluce Lab Eagle Pro 2 + ECCO2 (Environment)

Light Exposures:

Luminescence .. 25 x 180s

Red ........... 25 x 180s

Green ......... 25 x 180s

Blue .......... 23 x 180s (The weather curtailed the last two blue exposures.)

Calibration files:

BIAS .......... 100

Dark .......... 25

Flat .......... 25 per filter

Dark flat ..... 25 per filter

Total integration time: 4.9 hours

Processing

Method eg AstroPixelProcessor -> Topaz DeNoise AI -> -> Topaz SharpenAI -> Photoshop

A region of the sky particularly rich in galaxies, known as the Virgo Cluster and including several prominent members catalogued long ago: M884, M86, M87, M88, M89, M90, and M91, in addition to numerous others smaller and fainter galaxies. The arc of galaxies on the right is sometimes called Markarian's Chain.

2x3 mosaic each tile consisting of up to 30 exposures of five minutes each. Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor, and Lightroom.

Same framing and process as a week ago, but this time I shot 20 x 30 second subs from some better Bortle 3 skies, and NEOWISE was about 15 degrees above the horizon, which made a big difference - the background sky gradient was less severe, the green color of the nucleus is showing and there are more stars (and spiral galaxy NGC 3198, 6.5 arc min long with a visual mag. of 10.3 is just visible in the upper lefthand corner).

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 20 x 30 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken July 20, 2020 from Bortle 3 skies at 11:00 pm Pacific (the beginning of astronomic dark).

Andromeda Galaxy is the nearest major galaxy to our own Milky Way. Due to gravitational forces, we are currently hurtling towards each other through space at a speed of around 402,000kph and are expected to collide with each other in around ~4.5 billion years. We will then become what astronomers have nicknamed "Milkdromeda".

🌀🌠🌌🌟

Image Information

Telescope: Astro-Physics RH-305 | f3.8

Camera: FLI Microline ML8300 CCD

Mount: Paramount ME

Exposure Details: L50x300 / 30x30 sec, R33x300, G44x300, B21x300

Imaged at Deep Sky West Observatory, Rowe, New Mexico

Post-Processing: AstroPixelProcessor, PS

Mosaic Antares IC 4606 and IC 4592. Panorama of 31 tiles, 630 million pixels. Farm Kiripotib, Namibia.

© Julian Köpke

M45

William Optics Redcat 51

Atik Horizon

20x180s RGB

This is IC 1805, the Heart Nebula in the constellation Cassiopeia. Its nebulosity is extremely faint and not something you'd expect to be able to shoot in full moonlight from a light polluted suburban back yard. But I did thanks to a dual-band filter (L-Enhance) I used for the first time that blocks out all that unwanted light and transmits only the wavelengths specific to certain types of nebulas such as this one.

I used a 90mm f/6 triplet refractor equipped with a field flattener and mounted on an Orion Sirius EQ-G mount. The camera was a modified Canon 6D. Polar alignment, telescope focus, object acquisition, autoguiding, and exposure capture were all done from my iPhone using the ZWO ASIAir Wi-Fi device - an incredible piece of technology.

I combined 45 300s exposures at f/6, ISO 3200, for a total of 3.75 hrs exposure time. Images and calibration frames were stacked in Astro Pixel Processor and finished in Lightroom and Photoshop.

And just in time for Valentine's Day.

This is a very interesting field to shoot. There's a lot going on! On the right side, you have the Deer Lick Group. The main member is NGC 7331, called the Deer Lick Galaxy. Surrounding it are 4 smaller companion galaxies referred to as the "fleas".

On the lower left hand side you can see Stephan's Quintet, which is a group of 5 distant galaxies. 1 of them isn't part of the actual group and is merely in the line of sight, but the other 4 galaxies are all close together in the same compact group and are in the process of colliding and merging. Close examination shows they're already well entrenched into their gravitational spiral, throwing off dust, gas and stars as the orbit each other ever more closely, as well as triggering massive star formation.

If you search around closely, you can see a few more faint, distant galaxies in the background.

This image has been a pain to acquire. Every time I was on this target, I was plagued with haze, thin cloud, or just mysterious technical issues affecting my tracking. Despite shooting over 4 hours of this field over the last couple of weeks, only a measly 114 minutes of integration made it into this final image. Less than I would have wanted, but I've put enough time into this target for now and it's time to move on.

Acquisition data:

Optics: Sky-Watcher Quattro 250P f/4

Mount: Celestron CGX

Guiding: Orion Starshoot SSAG and Mini Guide Scope

Camera: ZWO ASI 1600MC Pro

Processing: AstroPixelProcessor, PixInsight and Photoshop CC

57 x 2 minute exposures

Shot at Camden Lake Provincial Wildlife Area and the Dark Sky Viewing Area, both in Lennox and Addington county in eastern Ontario.

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 25 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken just before astronomic dawn on Mar. 22, 2020 from Bortle 2 skies.

At my latitude, this region of the sky only gets about 17 degrees above the horizon - every time I've shot it I've had thin clouds and haze to deal with. This time was no different - I wasn't able to use most subs because of thin cloud cover.

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%

Bonjour, voici ma petite dernière après avoir passé deux nuits consécutive sur l'Aubrac. Il s'agit de l'oculus qui se trouve aux roc des loups

Cette photo résultat d’un suivi avec empilement sur deux nuits afin de totaliser 1h30 d’intégration pour le ciel. Le soucis venant de Rho Ophiuchi qui à cette période de l’année plonge très rapidement dans l’horizon.

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J’ai optimisé mon flux de travail de la même manière qu’un traitement en ciel profond. Il y a 90 lights (60s - f/2.8 - 1600iso), 50 offsets & 50 flats. Le premier plan quand à lui est une pose de 120s - f/5.6 - 200 iso. L’ensemble au 40mm.

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Prétraitement : AstroPixelProcessor,

Traitement : AstroPixelProcessor, GraXpert, Starnet++, Photoshop

Export : Lightroom

This image of NGC1499 was generated from the monthly image data given to iTelescope subscribers. The data was captured on their T80 telescope at E-Eye Fregenal de la Sierra on 27/10/2023.Because so few files had already been calibrated, the master files were created in AstroPixelProcessor before being processed in Pixinsight. The image is made up from 6 x LRGB 180s subframes giving a total integration time of 1.2 hours.

This H-Alpha image shows the Hydrogen Nebulosity near the Monster Star Gamma Cas in Cassiopeia. (40,000 times more luminous than the Sun)

This image is a stack of 100 exposures 15 minutes each through a Ha filter. Esprit 100 refractor+ QHY16200 CCD @ -20C.

(8,11,12 june+ 5,6,9,10,11,12,13,14 november 2017.)

Knight Observatory, Tomar

Lately I have been working a lot with Astropixelprocessor. With this software I have been starting to redo some of my data to see if I could catch more details. I'm astonished about the performance of this program to be honest. The stacked results showed smaller stars, more details and less noise.

This image shows SH2-155 aka the Cave nebula which consists of 215 images! With APP I was able to integrate my Luminance, H-alpha and UHC data to get really the most out of the data.

I'm very happy with the result that came out. The colours of the stars were as I liked them to be and somehow it resulted (in my opinion) in a very colourfull representation of this beautiful region in the sky.

Exposure info:

Telescope: TMB92

Camera: QSI583ws

Lum: 96x300s + 15x600s

Ha: 42x1200s

UHC: 35x600s

R,G,B: 9,9,9x600s

Total: 34,8 hours

Imaged over 2 nights in January 2019, near Cambridge UK.

Image Details:

8 hours 45 mins total exposure.

15 x 300s Red 1x1 (1 hours 15mins)

15 x 300s Green 1x1 (1 hours 15mins)

15 x 300s Blue 1x1 (1 hours 15mins)

3 x 600 and 12 x 1200s Ha (5 hours)

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.

Prints, cards and more are available via the website: shiny.photo/photo/Sh2-132-The-Lion-Nebula--Cepheus-20c162...

Sh2-132, also known as the "Lion Nebula", is an emission nebula located in the constellation Cepheus. Part of the Sharpless catalog, a list ofH II regions - clouds of glowing gas where star formation occurs.

About 10,000ly distant and 250ly across, Sh2-132 is situated in the Perseus arm of the Milky Way.

The most prominent sources of ionization in Sh2-132 are two Wolf-Rayet stars, which are extremely hot and massive stars nearing the end of their lives. These stars emit intense stellar winds shaping the surrounding gas into intricate structures.

Another of those occasions where one tries to match the DSS image of the Ha emission pattern resembling a lion with how the data looks. Make the OIII too bright a blue and it becomes a cut-'n'-shut with the front and rear ends too separate... It's also about the fine veins and blobs of dark nebulae - lanes of dust in the foreground.

4hr35min total integration with the IDAS NBZ dual-narrowband (Ha + OIII) filter, from which I extracted the Ha & OIII data separately using APP and recombined in PI.

Here's my interpretation of the well-known Rosette Nebula. It's a composite of images over two nights from my back yard in suburban Bloomington, Indiana. It includes images made using two filters that primarily isolate the light emitted by the elements sulfur (red), hydrogen (emitted as red but shown here in green), and oxygen (blue), similar to many of the images of such objects made by the Hubble Space Telescope.

This is another vast region of dust and gas, mostly hydrogen, excited to glow by the bright, hot, young stars in the center. Another generation of stars is undoubtedly forming in the denser areas of remnant material. This includes several catalogued objects including NGC 2238, NGC 2239, NGC 2244, and NGC 2252.

120 exposures, 6 minutes each, Explore Scientific 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI294MC camera, dual narrow-band filter (Hα, [O III]), [S II] filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor and Lightroom.

#astrophotography #deepskyphotography

IC1396 The Elephant Trunk Nebula

This is a reprocess of last years capture. A friend asked for an acrylic print 1200mm x 800mm, so I used what have learned in post processing since last year to improve the image for the 100MP size needed for print.

The Elephant’s Trunk Nebula is a dense region of dust and gas found within the considerably larger star forming region IC 1396 in Cepheus constellation. Designated IC 1396A, the elongated globule of dust and gas was named the Elephant’s Trunk because it resembles an elephant’s head and trunk at visible wavelengths, appearing as a dark patch with a bright winding rim. It is located at a distance of 2,400 light years from Earth.

Taken on 30,31 May, 1,5,6,12,13,14 June 2021

Lunar 78%, 68%, 56%, 18%, 12%, 6%, 12%,18%

Sky Quality 19.67 Magnitude Class 5 Bortle

Astromiks 50mm SHO 6nm Filters

Stacked 13.5hrs out of 16.5hrs for the best quality, 600 minute subs equally of Sii, Ha, and Oiii.

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

Topaz DeNoise

NGC 2903 is a field barred spiral galaxy about 30 million light-years away in the constellation Leo. NGC 2905 is a bright star cloud within this galaxy. The small diffuse galaxy to the left is UGC 5086 at 18mag.

Object: NGC 2903

Optics: Celestron 9.25 F6.3

Mount: Sky-Watcher EQ6-R

Camera: ZWO ASI 071MC Pro @-20°C, Gain=0

Exposure: total ~2h, RGGB 30x240sec, 300 Bias, 60 Darks, 40 Flats

Date: 2019-02-24

Location: Schwaig

Capture: Sequence Generator Pro

Guiding: Off-Axis, ASI120MM, PHD2

Image Acquisition: Stephan Schurig

Image Processing: Stephan Schurig

AstroPixelProcessor 1.071: Calibration, Registration, Normalization, Integration, Remove Light Pollution, Background Calibration, Star Colors Correction, Auto Digital Development

Photoshop 20.0.4: Curves, Exposure (Offset), Nik Dfine 2 Denoise (Color Noise), Masked Nik Dfine 2 Denoise (Contrast Noise), Star Shrink, Starless Masked Smart Sharpen, Masked Color Balance, Masked Dynamic (Dynamic, Saturation)

Remarks: ASI 071MC Pro made available by Teleskop-Service, Ransburg

Comet C/2022 E3 (ZTF) passes by Capella, the brightest star in the constellation Auriga. In reality the star is much brighter than the comet, but the relative position in the sky is correct at around 9:30pm EST on Feb. 5, 2023. Separate sets of exposures were used to image the comet and stars.

M82 (Cigar Galaxy) Edge on 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: 18 x 120s

Frames: 18 Lights

Cal Frames: DarkFlats/Flats

Total Exposure: ~36 mins

90% Crop

Capture: NINA

Processed: APP; PS.

Sky: No moon, no breeze, no cloud.

NGC 7635, known as the Bubble Nebula in the constellation Cassiopeia. A dynamic region of gas and dust in the Milky Way. The circular feature is a bubble blown in the material between the stars by the radiation and wind of energetic particles by one of the bright stars inside the bubble. Composite of 84 exposures 6 min. each. totaling 8hr 24min. in the light of hydrogen and oxygen. GSO RC 8" f/10 OTA, ZWO ASI2600MM monochrome cooled CMOS camera, SVBONY H-alpha 7nm filter, SVBONY [OIII] 7nm filter, Losmandy GM811G mount, ZWO ASIAir Pro controller, auto-guided. Processed in Astro Pixel Processor, and Lightroom.

12 300sec. exposures, Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut filter, iOptron CEM25P mount, ASIAir controller, processed in Astro Pixel Processor and Lightroom.

First light with new gear, I think the result speaks for itself. This is the western half of the amazing Cygnus Loop (a.k.a. Veil Nebula), the results of a long ago supernova, a star that blew itself apart in a cataclysmic explosion.

Tech: 3-panel mosaic, each 22 300 sec. exposures, Explore Scientific 102mm FCD100, ZWO ASI294MC, dual narrow-band filter (H-alpha, [OIII]), iOptron CEM25P, ASIAir, processed in Astro Pixel Processor and Adobe Photoshop Lightroom.

#astrophotography #supernovaremnant

The Wizard Nebula is an emission nebula that surrounds the open star cluster NGC 7380 in the constellation Cepheus. The nebula is known for its unique shape, resembling the appearance of a medieval sorcerer. The active star forming region lies at a distance of 7,200 light years from Earth and has an apparent magnitude of 7.2. It has a radius of 100 light years and occupies 25 arc minutes of the apparent sky. It has the designation Sh2-142 in the Sharpless catalog of H II regions.

Taken 23 June 2020 and 8,9,10 July 2020. Moon was minimal, early setting and low in the sky on these dates.

I was having trouble with movement in the optical train, now fixed with a better focuser, so framing not so good as I didn’t want to rotate the camera and filter wheel to one side. Will do next time around. Also, my focal length has walked during collimation so focus is not optimal and focal plane is tilted. Currently working on that issue to optimise the whole setup. Will invest in a Howie Glater laser collimator to help with that.

300s light frames totalling 8.6 hours SHO Narrowband, blended with a Foraxx pallet 50:50 mix using Pixelmath in Pixinsight.

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

HEQ6

ASIAIR Plus

Astro Pixel Processor

Pixinsight

Photoshop 2022

This is data from Oct 29, 2022. I created two videos to show the workflow of pre and post processing the same dataset using Sirilic/Siril and AstroPixelProcessor. The image in this shot was done through APP. Slight adjustments in Photoshop but if you look at the end of the video, the edits are pretty miniscule because I wanted to do some noise reduction (since APP doesn't have one).

Video on processing in APP: www.youtube.com/watch?v=-RMpuJ0I7wI

Video on processing in Sirilic/Siril: www.youtube.com/watch?v=rLGLcuwCBfw

Find more of my videos at: youtube.com/Naztronomy

See this on Astrobin: www.astrobin.com/21ot8k/

Equipment used:

* Astro-Tech AT60ED with the 0.8x Reducer/Flattener on Advanced VX Mount

* Mount controlled via Astroberry

* ZWO ASI533MC Pro

* Svbony 60mm guide scope with ZWO ASI120MM-Mini guide cam

* 28x300Sec

* 30 Darks

* 30 flats for each session

* 35 bias

* All frames were with Gain 101, Offset 70, at -10°C.

* Stacked in AstroPixelProcess and mostly post-processed in APP

* Photoshop: Noise and star reduction

The Taurus molecular cloud 1 in the constellation of Taurus is notable for containing many complex molecules, including cyanopolyynes HCnN for n=3,5,7,9.

IC2087 is the white reflection nebula.

Imaging dates:

27 sep 2017,

21,22,23,24,27,28 oct 2017

11,12,15,16,17,18,19,20,21 dec 2017

72x600sec Red, 65x600sec Green, 68x600sec Blue (34hr)

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

Knight Observatory, Tomar

It was extremely difficult to image this object in such a way that the typical blue-ish glow in the background came out enough to make the dark clouds "float".

(Explore)

Several LDNs and LBNs (LBN 133 & 134, LDN 768, 769, 772, 773, 774, 775, 779) in the constellation Vulpecula form the dark nebula structures that stand out against a carpet of stars and resemble the shape of the "Monster of Loch Ness." Additionally, there are two beautiful reflection nebulae in the area. This object was the perfect target for a moonless, short summer night, combined with the RASA 8 telescope at f/2.

During the editing process, I tried to bring out the delicate structures in the dark nebulae, avoiding creating a nearly completely black area. Moreover, I aimed to preserve and enhance the color variety not only among the larger stars but also among the countless smaller ones to achieve greater depth. I hope you like it!

Celestron RASA 8

Celestron Motorfocuser

EQ6-R Pro

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

RGB: 190 x 60" (3h 10')

Darks, Flats, Darkflats, Dithering

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

Astropixelprocessor, Photoshop, Pixinsight

Three Spiral galaxies at 35 Million Lightyears (M66 bottom left M65 bottom right. NGC3628 top) A Tidal tail connected to NGC3628 is visible. Total Integration time for this LRGB image is 33.5 hrs. Imaged on :16,17,20,21,25,26,30 apr2017+1,2 may, 2017 + 15,16,18,19/jan 2018+ 10,11,17,18,20,21,22 feb 2018. During 20 nights total.

Knight Observatory, Tomar.

This is a cropped version showing just the Galaxy Core right from center and NGC206 blue stars to the left. 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.)

Edit: There is a tiny white annotation showing the location of "The Star that changed the Universe", a Cepheid variable named "V1" by Edwin Hubble. He used V1 in 1923 to prove that the Andromeda "Nebula" was in fact a Galaxy outside our own Milky Way. Also see: hubblesite.org/hubble_discoveries/science_year_in_review/...

Edit2: Extragalactic Nova AT2018fhy is also visible on this image. See this extra upload: www.flickr.com/photos/kees-scherer/44338329531/

Knight Observatory, Tomar

NGC 253 - the Sculptor Galaxy - is one of the brightest (and dustiest) spiral galaxies beyond our Milky Way. It is suggested that there is the presence of a supermassive black hole in the centre with a mass estimated to be five million times that of our Sun!

🌀🌠🌌🌟

Image Information

Telescope: Planewave 20" CDK | f4.5

Camera: FLI-PL6303E CCD

Mount: Planewave Ascension 200HR

Camera Sensitivity: L Bin 1x1, RGB Bin 1x1

Exposure Details: L 16 x 300 sec, RGB 21 x 300 sec

Observatory: iTelescope.net at Siding Spring Observatory, NSW, Australia

Date Taken: October/November 2018

Post-Processing: AstroPixelProcessor, PS

NGC 1499 in Hydrogen Alpha, located about 1.000 lightyears away in the constellation Perseus.

Shooting Location :

* 51° N 3° E

* bortle class 5 backyard

NGC 1499 Information

* Type : Emission Nebula

* Magnitude : 6.0

* Location (J2000.0): RA 04h 03m 18s / DEC +36° 25' 18"

* Approximate distance : 1.000 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 : 60

* Bias Frames : 50

* Dark Frames : 30

* Flat Frames : -

* Flat Dark Frames : -

* Total Integration Time : 2h00m

* Capture Date : 2019-11-21

Capture Software

* ZWO ASIair

Processing Software

* AstroPixelProcessor

* Adobe Photoshop

* Topaz AI Denoize

I captured the Jellyfish Nebula with narrowband filters in 2022 (Ha & OIII) and did another RGB session only for getting nicer stars. In this new edit I focused on the RGB data and only added very little Ha and OIII to it in order to keep a natural look. 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 (IDAS NBZ): 73 x 240" (4h 52')

Darks, Flats, Darkflats, Dithering

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

Astropixelprocessor, Photoshop, Pixinsight

A couple of star-forming gas clouds in our Galaxy, IC 405 aka The Flaming Star Nebula on the left and IC 417 on the right. The greenish fuzz between them is Comet C/2020 M3 (ATLAS) photobombing the scene. The comet is elongated because it moved relative to the stars during the hour or so of total exposure time.

Tech: Nikon D800 (converted to record the light of hydrogen), 200-500mm f/5.6 @500mm, 53 frames each 90 sec., f/8, ISO 5000, iOptron CEM25P mount, stacked in Astro Pixel Processor and post-processed in Lightroom.

Orion Nebula. 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.

Several clear nights back to back and an increasingly less bothersome Moon! This prompted me to revisit one of my favourite summer objects. This is the western side of the Veil Nebula, ngc 6960. Imaged in the one hour of darkness between astronomical darkness and Moon rise.

Equipment. Skywatcher 25cm Quattro. Skywatcher EQ6 mount with autoguider. QHY8L one shot colour camera.

Software. APT for Plate solving, framing and capture. PHD2 for guiding. AstroPixelProcessor for processing and Photoshop CC for a final polish.

6 x 10 minute exposures at -24c along with flats, dark flats and bias frames.

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded circa 3,000 BC to 6,000 BC, and the remnants have since expanded to cover an area roughly 3 degrees in diameter. The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years. (en.wikipedia.org/wiki/Veil_Nebula)

22 hrs RGB captured for this 2 panel Mosaic between 17 april and 18 June 2018 with Esprit 100 refractor/QHY16200 @-20C. Stacking/mosaic in AstroPixelProcessor, further processing in Pixinsight.

Knight Observatory, Tomar

[Explore 20180703]

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

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 Great Orion Nebula is an enormous cloud of dust and gas where large numbers of new stars are being formed. It's bright central region, the Trapezium cluster, is home to four massive young stars that help shape the nebula.

Orion is estimated to be around 24 light years across and has a mass of about 2,000 times that of our Sun. It lies about 1,350 light years away from Earth.

🌀🌠🌌🌟

Image Information

Telescope: Tele Vue NP127fli Refractor | f5.6

Camera: FLI Proline 16803 CCD

Mount: 10Micron 2000 HPS

Exposure Details: L 6 x 300 sec, RGB 13 x 300 sec, Ha 6 x 600 sec

Observatory: Siding Spring, NSW, Australia

Date Taken: October - December 2018

Post-Processing: AstroPixelProcessor, PS

Thank you to Tele Vue Optics for featuring this image in their recent blog: bit.ly/2V8CgiC