The Andromeda Galaxy (M31) with its companions M32 (above the core) and M110, captured in HaLRGB over eight nights in early October 2026 from Nebraska. Hydrogen-alpha was blended into the red channel and luminance to bring out the HII regions strung along the spiral arms and the dust lanes threading through the bulge.

The core is an HDR composite. Short 5s and 30s luminance subs and 15s RGB subs were blended with the long exposures so the core keeps its structure, while the long subs carry the fainter outer disc.

Processing (PixInsight)

• Calibration and stacking in WBPP with 2× drizzle
• HDRComposition on the core from the short and long exposure masters
• DynamicCrop
• SpectrophotometricFluxCalibration and MultiscaleGradientCorrection per channel
• SPCC
• BlurXTerminator, NoiseXTerminator, StarXTerminator
• Ha continuum-subtracted against R using a photometric flux ratio and blended into the red channel and luminance
• GHS stretches per layer
• LRGB combination, curves for tone

Total integration: 65h 18m

Integration per filter:

• Lum/Clear: 27h 23m
• R: 7h 54m (158 × 180s)
• G: 7h 39m (153 × 180s)
• B: 8h 57m (179 × 180s)
• Hα: 13h 25m

Equipment:

• Telescope: William Optics RedCat 91 WIFD
• Camera: ZWO ASI2600MM DUO
• Mount: ZWO AM5N
• Filters:
  • Antlia 3nm Narrowband H-alpha 2"
  • Antlia V-Pro Blue 2"
  • Antlia V-Pro Green 2"
  • Antlia V-Pro Luminance 2"
  • Antlia V-Pro Red 2"
• Accessories: ZWO EAF, ZWO EFW 7 x 2″
• Software: Pleiades Astrophoto PixInsight

For more information, visit AstroBin:

https://app.astrobin.com/i/t8u67i

I couldn't let a rare stretch of several consecutive clear nights go to waste and decided to capture the popular M31, combining broadband LRGB with narrowband Ha and OIII (maybe later some Sii). While I managed to bring out some interesting structures and emission regions, I still feel there's more hidden in the data than I've been able to reveal. I plan to revisit M31 with additional SHO data.

Imaging location: Erwinna PA (Bortle 5)

Technical details:

Telescope: Askar FRA600 with 0.7× reducer (420 mm, f/3.9)

Mount: ZWO AM5/N

Camera: ZWO ASI2600MM Pro

Filters: LRGB, 3 nm Ha and OIII

Acquisition: ASIAIR Plus

Total integration: about 35 hours

Calibration: Flats and bias frames

Thanks for watching,

Oleg

The Orion Nebula (Messier 42/NGC 1976)

I have wanted to get a nice resolution image of this beautiful nebula for years, and this is a great start: 7.15 hours of imaging on a cooled CMOS camera using a broad-band filter. The first object I've captured since finally upgrading gear, and the difference has been amazing.

Gear specs:

I am using an AM5N equatorial mount, with a Redcat WFID 71 f/4.9, ASI294MC Pro, and Optolong L-Pro. 7.15hrs of 180s subs, with 1hr of 30s subs for highlight details. Matching darks, bias, flats and dark flats for the images.

Imaging and processing: Stacked in astropixelprocessor, then pixinsight for main processing - colour/channel correction, background neutralisation, curves/STF, sharpening with unsharp/median equalisation and blurxterm, noisexterm. Processed both 180s data and 30s data separately with the same process (using history in pixinsight) then blended highlight detail in PS with luminosity masking, output sharpening, colour correction for print and display, and upscaling for print on Hahnemuhle Metallic Rag! There was a bit of work to do about some flaring on the top left of the image - unsure what it was from - hoping not the scope?, but separated from stars and then cloned out.

Full res tif if you want to look (Still have to set up astrobin sorry!): https://www.dropbox.com/scl/fi/b7gktgd31pw9nky8rsbng/M42_180s_final_output.tif?rlkey=d4jng4kgs6og0mfx261331xoj&st=lycj9771&dl=0

And my failed attempt to show the learning curve from my heq5 and Zenithstar 73: https://www.dropbox.com/scl/fi/f11mk8o94o05m7h94rsza/N42-copy.jpg?rlkey=zcs60hieo6wwisunxk3tiucqw&st=jlxuuf22&dl=0

Shot from my backyard in Perth, AU (Bortle 6). Shooting this area for the first time and had to wake up at midnight to set up the scope before going back to bed! I will definitely need more integration time and need to recollimate my scope, also the halos around Altinak and Sigma Orionis are a bit annoying (oh well). Happy with how it turned out though.

Equipment
- Sky-Watcher Quattro 150P w/ 0.86× coma corrector/reducer (~518 mm, f/3.45)
- ZWO ASI533 MC Pro
- ZWO Duo-Band filter (Hα + OIII)
- Sky-Watcher HEQ5-R Pro mount
- ZWO ASIAIR Plus
- ZWO ASI220MM Mini + Saxon 50mm guide scope

Acquisition
- 155x60 second exposures (2hr 35min total integration)

Processing
- GraXpert background extraction
- Stacked and processed in Siril (BlurXTerminator, NoiseXTerminator, StarXTerminator, stretching)
- Post-processing in Pixelmator Pro

I recently upgraded to a narrowband and mono camera setup and this is my first image with it. I’ve never worked with anything similar before so it was a challenge to learn but extremely rewarding. Put a lot more exposure time into this than I usually do.

Astrobin Link: https://app.astrobin.com/i/2zjukp

30 Hours of Integration

ZWO AM3N, ASI533MM Camera, ZWO FF65 Telescope

Antlia 3nm SHO Filter Set

Processed in Pixinsight, Photoshop, Lightroom

Processing Steps

WBPP
Multiscale Gradient Correction
Pixel math to combine Monochrome images into RGB
BlurX
AutoLinearFit
StarX
NoiseX
Histogram Transformation
Generalized Hyperbolic Stretch
Curves
Narrowband Normalization
RGBWorking Space
ImageBlend to combine stars

Brought into PS and Lr for final color and contrast tweaks

Last year I missed the window of opportunity to capture Deer Lick so I've been pretty excited to take a proper stab at it! I'm trying new things in Siril and I'm thrilled with how this looks but I wish I could get the IFN a bit sharper somehow.

This is a combination of these exposures:

-315x300s with UV/IR Cut

-234x180s with SV260

Total: 37h55m!

Equipment Used:

-Askar APO103 + 1x Flattener

-ASI2600MC

-UV/IR Cut & SV260 Filters

-AVX + SSAG for guiding

Processed in Siril and Pixelmator.

Last night I was able to finally capture my first DSO and I think it looks good enough. I'd appreciate feedback.

Camera: EOS 6D

Lens: Samyang 135mm T2.2

Exposure: ~206 1"6 second exposures, 8 mins & 8 secs at 1600 ISO under Bortle 5-6 skies

Processing in Photoshop and GraXpert.
I did multiple curve and level layers in Photoshop until I got what I liked, then I used gradients to account for the light pollution. But since that wasn't enough, I used GraXpert background extractor to level the image out. However, I noticed that GraXpert was causing colorful gradients across the side of the screenshots. So I used the Hue/Saturation adjustment layer and turned down the colors of the color gradient while masking out Andromeda so it wasn't effected. Afterwards I adjusted the exposure and cropped it

My first attempt at astrophotography with a tracker

Acquisition details:
Camera- Canon EOS 90d (unmodified); ISO- 3200
Lens- Rokinon 135mm f/2
Integration: 650 x 13” = 2.3 hours at a bortle 2 dark sky sanctuary
Tracker- Star Adventurer GTi (unguided)

Processing
Stacked in Siril. I used StarNet Star removal to create a starless Andromeda mask and a separate star field. I used the Asinh transformation to stretch Andromeda and adjusted the black point on the star field. Finally I used Lightroom for some color calibration

And because I know a few people will be curious as to why my exposure was so low with a tracker, it was super windy where I was and over half my frames had trailing at 30”. My polar alignment probably also could’ve been better.

✨ Target: NGC 7822 + Sh2-170

🔭 Mount: Star Adventurer 2i

📷 Camera: ASI 294 MC Pro Color

🔎 Scope: Askar FMA180 Pro

🕶️ Filter: Dualband Svbony SV220

🎯 Guide Camera: ASI 120mm Mini Mono

🦮 Guide Scope: Svbony SV165

🔬 Sampling: 2.66"/px (x2 drizzle)

❄️ Cooling: -10°C

🔴 Acquisition: Gain 120

⏰ Integration: 78x300s (6h 30min)

📊 Calibration: 40 dark, 40 flat, 40 dark-flat

💻 Processing: PixInsight, RawTherapee

📍 Location: Turin (Italy)

📅 Date: Oct. 13-14, 2026

🌌 Sky: Bortle 8

Thanks for checking out my capture of the Helix Nebula last night!

Super weird target to process - never felt like I was getting the colors or texture/layers right. This target is super low on the horizon so I could only collect an hour of data over several nights.

This image represents about 3.5 hours of total integration, 3 minute subs, with my C8, ASI533MC + ASIAIR, hyperstar F/2, EQ6-R pro mount, and the optolong L-Ultimate 2" narrowband filter. Processed in PixInsight.

I wasn’t sure exactly what I’d capture in just a few hours the other night, since the Butterfly Nebula seems to be a bit less popular target than the Crescent Nebula in the famous Sadr Region. The Butterfly is situated right by the star Sadr itself (the biggest star in this image!), and I have to say I’m impressed.

Check out the full photo at: https://app.astrobin.com/i/f2z2ot

Subs: 28 x 300s

Total integration time: 2h 20m

Equipment:

• Telescope: William Optics Pleiades 111
• Main camera: ZWO ASI2600MC Pro
• Mount: ZWO AM5N
• Filters: Optolong L-Ultimate 2"
• Accessories: ZWO EAF Pro, ZWO 5x2 EFW
• Guidescope: William Optics Guide Star 61
• Guide camera: ZWO ASI220MM Mini

Processing:

• Pleiades Astrophoto PixInsight
  • RC Astro BlurXTerminator
  • RC Astro NoiseXTerminator
  • RC Astro StarXTerminator
• Adobe Photoshop 2026

Frames captées en Normandie cet été. N'ayant ni trepied ni monture de suivi il s’agit de 3 sessions d’1h15 prises sur 3 jours dont 2 en septembre et un en août

Appareil : Samsung s25 ultra

F : 1.7

Iso : 800

Temps de pose total 4h divisé en 720 poses de 20s

Empilement : sequator

Traitement : Siril/ GraXpert/ Seti Astro Suite pro/ Gimp.

Finitions : lightroom mobile

J’y ai passé beaucoup de temps et y ai mis tout ce que je savais faire, j'espère que ça vous plaira !

This is my first ever attempt at star trails. I am in love with the photo, it looks very cool!

The original images were taken in August, and I stacked them together with Sequator today.

Specs:
Camera: iPhone 16 Pro, 24mm lens
Total exposure time: 19~ minutes, 30 second exposures each
Stacking Software: Sequator
Editing Software: Lightroom Mobile

Animation of Saturn, Titan, Tethys, Dione and Rhea, recorded during the night of 14–15 September 2026 over 4 h 13 min. Spokes become clearly visible from about 01:00 UTC onward.

Equipment : Newtonian 150/750, EQ5 mount, TeleVue ×3 Barlow, Uranus-C camera, uv-ir cut filtre.

Sofware :
- FireCapture: acquisition of 19 sequences of 3 min at 200 ips , from 14/09/2026 22:29 to 15/09/2026 02:42 UTC.
- AS4! : stacking of the best 25% of frames.
- AstroSurface: Wiener deconvolution using a PSF measured on a real star, wavelets, white balance, satellite ehancement and Lanczos resampling ×1.75.
- WinJUPOS: measurement of the 19 images and derotation at 1 min intervals, producing 254 final images. Each image was reconstructed from several source images using a Gaussian temporal weighting centred on the target timestamp, in order to retain the signal-to-noise gain of derotation while limiting artefacts and abrupt transitions.
- Darktable and python tool: local limb corrections, final harmonisation and addition of date/time.
- Gifski: creation of the final GIF.

Uranus captured on October 15th.

Telescope: Sky-Watcher 250P Go-To.
Camera: ZWO ASI678MC.
Acquisition: 4 minutes of time for ~39,000 frames. Used the PIPP, Autostakkert, Registax workflow.
Additional: This was taken at around 3:35 AM. This was my first ever attempt at Uranus. Image 2 shows a blown out/brightened version, showing all four of it's major moons.

I hope we are civil when it comes to naming.

Dwarf 3 Bortle 2
60 sec 60 gain 190 subs processed in stellar studio and Lightroom mobile

Acquisition details
Target: Sh2-157 (Lobster Claw Nebula), Cassiopeia
Location: Fort Mill, SC, USA (Bortle 6)
Dates: October 2026, 4 nights

Equipment
Telescope: Askar 103APO (700mm, f/6.8)
Camera: ZWO ASI2600MM Pro
Mount: ZWO AM3N
Filters: Antlia 3nm Ha / OIII / SII, Antlia V-Pro R / G / B
Filter wheel: ZWO EFW
Focuser: ZWO EAF
Guiding: SVBony guide scope + ZWO ASI220MM Mini
Control: ZWO ASIair Plus

Integration
Ha: 45 × 500s (6.3 h)
OIII: 53 × 500s (7.4 h)
SII: 60 × 500s (8.3 h)
RGB (stars): 15 × 120s each (1.5 h)
Total: 23.4 hours
Gain 100, cooled to -10°C
Calibration: 500s: 25, 120s: 25** darks,** Ha: 50, OIII: 50, SII: 50, R: 50, G: 50 B: 50 flats, 50 bias

Processing (PixInsight 1.9.5)
WBPP (PSF Signal Weight, Local Normalization, cosmetic correction)
GradientCorrection, BlurXTerminator
GHS stretch with highlight protection on the bright core
StarXTerminator, NoiseXTerminator
NarrowbandNormalization (SHO palette)
Curves, masked core dimming, DarkStructureEnhance, LocalHistogramEqualization, SCNR
RGB stars: SPCC, BlurXTerminator, GHS, StarXTerminator, black-point clip, screen-blended back in

Shot with Seestar S30 Pro in bottle 4.6. Shot it over 90 minutes with a tripod setup. Seestar app ai and apple processing for post processing.

Wanted to practice dual duo-band image processing for when my Draco arrives.

I used the inbuilt ha/oiii narrowband filter in the dwarf 3 , along with a askar colour magic sii/oiii filter in an external holder to take this image of the lagoon nebula (m8).

Details:

Ha/Oiii - 415 minutes integration time

Sii/Oiii - 520 minutes integration time

Each was stacked in Pixinsight before splitting into red green and blue channels.

Blue and green from each stack were combined into Oiii signal, which was then averaged from each stack into a master Oiii. Ha came from the red channel of the first stack and Sii from the red channel of the second stack.

These were then individually processed with graxpert, blurx, noiseX and starX before stretching using mutli-scale adaptive stretching.

Background between the three channels was kept constant and each channel was stretched to be as close in nebula brightness as possible before recombining into the Foraxx palette.

Saturation and colour masking was then used to adjust colours to get to the desired look before stars were added back in.

Overall, I had a lot of fun having a second narrowband dataset to work with and im looking forward to the Draco being able to do it natively.

I originally took this image in December of 2024 in Canyonlands National Park. I spent the night on top of a rock formation with just a camera and a tripod taking lots of short exposures. I recently re-processed it using a trial version of Pixinsight and RC Astro tools. I am sold on PI (and RC Astro). The difference between my original images (mostly processed in Siril) is night and day.

Camera - Unmodified Canon T7

Lens - 135mm Rokinon f2.0

600x1.6 seconds (16 minutes integration)

Regular tripod with intravalometer

Siril OSC Pre-Processing

Pixinsight, BlurX, NoiseX, StarX. I used Phillipe Bernhard's workflow for simple OSC processing in Pixinsight

First time trying to shoot the veil nebula. Expected a little more out of it just because of my long exposure time, but regardless it came out somewhat good, especially for my sub-par imaging conditions.

Total around 20 hours of total exposure, shot over 5 nights, 45" subs (no guiding, as you can tell from the walking noise)

30 flats, darks, and biases. Although flats didn't work for some reason, probably because night 1 and night 2 weren't centered.

STOCK canon t3i, 75-300mm kit lens shot at 135mm (cropped) f/4.5, bortle 7ish skies, with a star adventurer gti.

Processing used - Siril, GraXpert, photoshop, noiseXterminator

Hope you guys enjoy and open for suggestions!

Decided to give another shot at editing my M31 capture, since I didn't know about gaxpert and starnet when i first took it. This is about 1700x1.3sec lights for about 40mins of total integration, 30 darks and biases, 50 flats. Camera is an eos 6d using a 200mm tamron adaptal 2

Scope: ES127 Carbon Fiber Apo Triplet (952mm Focal Length), Camera ASI2600MM, Mount AM5N, guided. Filters are Baader.

Software: Capture in NINA, all processing in PixInsight

Basic PI Workflow: WBPP, ChannelCombination, BlurXterminator, SPCC, Continuum Subtraction on Ha, NoiseXterminator, StarXterminator, MAS, ImageBlend for Lum Layer, ImageBlend for Ha, ImageBlend for RGB Stars.

Location: Starfront Observatories in Rockwood Texas USA (Bortle 1 or 2)

Acquisition Details:

450″ X 95 Luminance
450″ X 50 Red
450″ X 50 Green
450″ X 52 Blue
600″ X 49 Hydrogen Alpha
39 Hours Total Integration

Acquisition Dates:
7 nights over October 6 – 12, 2026

You can see the full resolution image and annotated version here: https://www.forthier.space/m33/