This is another one of my very first images I processed with Pixinsight shot back in October. And, my very first time shooting and processing the Andromeda Galaxy. Only used with a DSLR and star tracker. Images for two nights in a dark sky. After long research, I was able to learn Pixinsight and get this beautiful result. (Go check out my first post here of the Pleiades)

Equipment:

Camera & lens: EOS Canon 6D, 300mm zoom

Mount: Sky Watcher Star Adventurer 2i

2 minute subs, 10 hours total

Bortle 1

Processing: Pixinisight & Photoshop

WBPP-SCPC-Blur X-Star X-DBE-Noise X-Histogram stretch-rounds of curves-Photoshop camera raw with starless and stars-mask to brighten brighter stars and dim fainter stars-Image Blend in Pixinsight

LDN 43, famously known as the Cosmic Bat Nebula, is a dense dark nebula and active star-forming region. Located approximately 1,400 light-years away in the constellation Ophiuchus, this 12-light-year-long cloud of interstellar dust blocks background light, creating a striking silhouette that resembles a bat spreading its wings.

Telescope: Sky-Watcher Esprit 120 ED Pro

Reducer: Riccardi 0.75× Field Reducer

Camera: ZWO ASI2600MM Pro

Mount: ZWO AM5 Harmonic Drive

Filters: Antlia 3nm LRGB, Halpha (2")

For more check out: https://www.instagram.com/mr.cosmic.wanderer/

Location: AstroCamp, Nerpio, Albacete, Spain

Total Integration: 32.25 Hours

Processing: PixInsight & Adobe Photoshop

Data Acquisition and processing : Chris Gaudy/

Harshwardhan Pathak

The Iris nebula, aka NGC 7023, is a large, bright reflection nebula located in the Cepheus constellation. The nebula is about 6 light years in diameter, and about 1,300 light years from Earth. The Iris is part of the larger Cepheus Flare, a massive complex of similar dark nebulae, star-forming regions, and young stellar objects. This makes the Flare, and the Iris itself, an invaluable region for studying each stage of the pre-main sequence evolution of stars.

Being in the Cepheus Flare region, there’s tons more going on here besides just the Iris. Just above the Iris is a small reflection nebula called the Ghost Nebula, a dense patch of interstellar dust only slightly closer to us than the Iris itself is, full of embedded stars, giving the nebula an orange glow. Just below the Iris, forming a small spiral-like loop, is an interesting object called Gyul’budaghian's nebula. This nebula surrounds the young T Tauri star PV Cephei and, like the more famous Hubble’s Variable Nebula, is also a variable nebula, with activity from the volatile T Tauri star creating differences in light reflecting off the nebula, causing it to change appearance over months.

The Iris and surrounding Cepheus Flare is also a common target for astrochemistry studies, with several examples of molecules called polycyclic aromatic hydrocarbons (PAHs) having been detected within it over the years. These are hydrogen-and-carbon-containing molecules where the carbon atoms bond together into ring structures, and are commonly formed by incomplete combustion - burning engine fumes, incinerators, and roasted meat. They’re also among the most complex molecules yet discovered in space, and are a great carbon source for more complex organics, making them key research targets in prebiotic chemistry - the chemistry that formed life.

Askar FRA400

ZWO ASI6200MM

Optolong 2" RGB filters

35x6m R

35x6m G

39x6m B

=10h 54m total (RGB)

Stacked in DSS, processed as RGB in Pixinsight

Photographed from Starfront Observatories

Scorpio Astro 17w, Askar 300FRA Pro, MiniCam8 Mono

All calibrated 30 second subs from Bortle 8/9, Drizzled 2x, SHO Stars

HOO version

H - 277 subs

O - 160 subs

Processed with Siril, SAS Suite, GraXpert, Affinity, and Rawtherapee

This is just the start. I really want to get the fainter Ha all around it.

Acquisition Details

• Telescope: 500mm focal length DayStar doublet APO refractor (from 2017 citizen science eclipse project)
• Mount: Celestron CGE
• Camera: ZWO ASI2600MM Pro
• Filters: Optolong 7nm Ha, OIII, & SII
• Exposures:
  • Halpha: 32 x 600"
  • OIII: 42 x 600"
  • SII: 42 x 600"
  • Total Integration: ~19.3 hours
• Location: Backyard (Bortle 5)
• Date/Moon Phase: New Moon, July 12-15, 2026

Processing Details

• PixInsight:
  • Calibrated, registered, and integrated using WBPP.
  • Corrected background gradients using MultiscaleGradientCorrection.
  • Separated stars in each filter utilizing StarNet2.
  • Applied BlurXTerminator and NoiseXTerminator to starless images
  • Combined channels into the Hubble palette (SHO) and ran NarrowbandNormalization to balance the general colors.
• Photoshop:
  • Final saturation, contrast, and color balance tweaks to complete the image.

NGC 6888 – The Crescent Nebula 🌙✨
This is NGC 6888, the stunning Crescent Nebula, an emission nebula located in the constellation Cygnus, approximately 5,000 light-years from Earth.
Its distinctive crescent shape is the result of a dramatic cosmic interaction. At its center lies WR 136, a rare and extremely powerful Wolf-Rayet star nearing the end of its life.
Powerful stellar winds, traveling at more than 1,500 km/s, are sweeping up material expelled during an earlier evolutionary stage, compressing and heating the surrounding gas until it glows.
🔴 Red: Ionized Hydrogen (Hα)
🔵🟢 Blue/Green: Doubly ionized Oxygen (OIII)
These emissions create the intricate filaments and chaotic structures that make NGC 6888 one of the most fascinating deep-sky objects of the northern summer sky.
In a few hundred thousand years, WR 136 is expected to end its life in a spectacular supernova explosion, enriching interstellar space with heavy elements that will eventually become part of new stars and planetary systems.
📍 Object: NGC 6888 – Crescent Nebula
🌌 Constellation: Cygnus
📏 Distance: ~5,000 light-years
⭐ Central Star: WR 136 (Wolf-Rayet)
The universe is a continuous cycle of birth, transformation, and death. This image captures one of the most spectacular moments of that cycle.
📸 Imaging Details
235 × 300-second exposures
Total integration: 19h 35m
Captured: July 17–20, 2026
Location: Corato, Apulia, Italy (Bortle 6)
Telescope: Askar 91F APO
Mount: Sky-Watcher EQ6-R Pro
Camera: ToupTek ATR533C
Filter: SVBONY SV220 Dual Band (Hα/OIII)
Processing: PixInsight
Clear skies! ✨

Taken from South East London, UK…bortle 8.5 zone 😅 Askar 120 APO with 0.8 reducer ASI2600MC camera AM5 mount Use Askar colour magic D1, D2 and SVBony Oiii filters and clear uv/ir cut filter for the stars. In total 7 hours integration. Stacked and finished in Pixinsight with a HOS palette. Full resolution on https://app.astrobin.com/i/ewd2nj

Olympus OM-1 & 45mm f1.8
ISO 800
62x60s
MSM Nomad
Bortle 5.
Stacked in AstroPixelProcessor, Processed in Siril, Denoised with SyQon DeepPrism, color adjustments in Lightroom.

I'm new to this hobby, so i would be glad for any tips, I've stacked 100 photos, shot on Panasonic Lumix s5ii with 50mm f/1,8, with ISO 8000 and 10 sec exposure

Beginner Image. Feedback/critique welcome
3.5 hours integration
Bortle 4
ASI2600MC
Askar 71f
Processed in Pixinsight
RC Astro Plug ins

This was my first real test with a mono setup, and it was an amazing experience! Even though capturing the lights was more complex, it paid off in the end results. I hope you like it!

This is an LRGB image with a total integration time of 8 hours and 6 minutes, all taken in one night under Bortle 4 skies in Alto Paraíso de Goiás, Brazil.

- 101 x 180s L
- 24 x 180s R
- 19 x 180s G
- 18 x 180s B

Equipment used:
- ZWO AM5n
- Askar FRA400
- ASI2600MM Pro
- 2”Optolong LRGB filters

I’ve also posted it in my AstroBin! Clear skies everyone!

Asi2600mm

Am5n mount

Asi air

SVBony SV550 122mm triplet

Processed with Pixinsight

RGB (for stars)- 10 X 60"

Sulpher filter - 50 x 300"

Ha Filter - 50 x 300"

Oiii filter - 50 x 300"

Total integration - 12.5 hours

First time capturing a nebula on my Dwarf 3, about an hour with 132 30s exposures. Processed in stellar studio.

Equipment: AT80ED, EQM-35 pro, ATR533M cooled mono camera, Touptek 1.25" RGB filters + filter wheel, zwo asi120mm mini with touptek OAG

Acquisition: 2-minute subs at gain 101 For R / G / B. Total integration time: ~3 hours (About 1 hour per channel)

Processing: Stacking/registering and processing in siril (RGB compositing, background extraction, color calibration). Stars removed in order to smooth and denoise the background seperately, then recombined at the very end.

Third time's a charm? During these periods of short summer nights flooded with clouds, I find myself drawn (okay, addicted) to re-processing data captured from the first steps on the astrophotography path. Eight months later, I've learned so much and gained a deeper curiosity and wonder for the cosmos.

Located about 2,900 lightyears away in the constellation Cepheus, NGC 7822 is a star-forming complex sometimes referred to as the Question Mark or Teddy Bear nebula (imagine the frame rotated clockwise to better understand the "question mark" nickname). NGC 7822 even features “elephant trunks” similar to the famous Pillars of Creation.

Check out https://app.astrobin.com/i/3utx7a for the full resolution photo.

Light frames: 72 x 300s, total integration time 6 hours.

Equipment:

• Telescope: Apertura 90mm Triplet Refractor
• Reducer/Flattener: Apertura 0.8x (R-FLAT)
• Main camera: ZWO ASI2600MC Pro
• Filter: Optolong L-Ultimate 2"
• Mount: ZWO AM5N
• Guidescope: Apertura 32mm
• Guide camera: ZWO ASI220MM Mini

Processing:

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

Target: M106 / NGC 4258, an intermediate spiral galaxy with a Seyfert II active nucleus, located about 23.7 million light-years away in the constellation Canes Venatici. It contains prominent star-forming regions and two anomalous arms that glow strongly in Hα emission.

Equipment: Skywatcher 200 PDS (upgraded), TS GPU Coma Corrector, Skywatcher EQ-6R, ToupTek ATR2600M (mono), GPCMOS02000KPA for Guiding using an OAG, Touptek 36mm Filters in LRGB /Ha (3.5nm).

Acquisition: 25 x 300" Ha, 70 x 180" L, 12 x 180" R, 12 x 180" G, 12 x 180" B, 30 Flats each, 30 Bias frames. Gain 100, Offset 256, Bortle 4 backyard

Total integration: 7h23m.

Processing: Pixinsight: Stacked using WBPP, BXT (correct only), Channel Combination (RGB), NoiseXterminator, BlurXterminator, StarXterminator to get RGB stars, Continuum subtraction (R vs. Ha). Boost Ha in R channel, Process L similar to RGB, VeraLux Hypermetric Stretch (RGB), Stretch L, Add luminance to HaRGB, Unscreen stars, Dynamic Crop, Final tweaks using CurveTransformation.

This is a remnant from galaxy season that still waited to be processed, I hope you like it ;)

NGC 6888 (Crescent Nebula)

This is shaping up to be one of the most exciting projects I’ve taken on so far. The amount of detail that’s starting to emerge after a few hours of integration has me looking forward to seeing what a few more nights will add.

Capture Details
223 × 90-second exposures
5h 34m 30s total integration
DWARFLAB Smart Telescope
Dual-band filter
Bortle 3.5 skies
Processed in Photoshop & Snapseed
Still collecting data, but I couldn’t wait to share the progress. The Crescent Nebula is already starting to show why it’s considered such a rewarding target for long integrations.

(that my first image ever with a star tracker)

canon 6d

50mm f/3.5

star adventurer 2i

45*30 seconds

22 minutes

(im 14 years old)

This was taken from the Kagga Kamma Remote Observatory in April and May over 25 sessions in 22 hours with LRGB filters. It's not really called the Cosmic Snake but I'm calling it that.

You can see the full res version of this on Astrobin: https://app.astrobin.com/?i=qbbxwm

 And this was stacked and mosaiced automatically using my new Siril script: https://youtu.be/meX8yNV1rYc 

Acquisition Details on my website: https://www.naztronomy.com/gallery/image/925/cosmic_snake_mandel-wilson-9_ic4635_lrgb

Total integration: 21h 42m

Integration per filter:

• Lum/Clear: 6h 6m (122 × 180")
• R: 4h 57m (99 × 180")
• G: 5h 39m (113 × 180")
• B: 5h (100 × 180")

 Equipment:

• Telescope: Sky-Watcher Esprit 100ED
• Camera: QHYCCD QHY268 M
• Mount: Sky-Watcher EQ8-R Pro
• Filters: ZWO Blue 2", ZWO Green 2", ZWO Luminance 2", ZWO Red 2"
• Software: PixInsight, Siril, N.I.N.A.

As you can see, there were some very heavy light leaks. Did my best to work around them and took me a while to get something I'm happy with. The jagged mosaic panels were also a mistake on my part, I forgot to reset the angles when creating the mosaic sequence in NINA but I think it looks kinda cool, it kinda goes with the body of the snake. We're reimaging this with another rig now with no light leaks. The Esprti's light leaks were also fixed but we were only testing that rig so I won't have access to it for too long and didn't want to start any long term projects there. I think that rig will be ready for rental soon! 

Photograph of the full solar solar disc showing its sunspots taken earlier today (July 21st). Captured with a Celestron NexStar 130SLT using a Celestron EclipSmart white-light solar filter and a Samsung Galaxy S23 FE. Single exposure with no post-processing.

M16 - The Pillars of Creation

Apertura Carbonstar 200 @ 800MM EFL
EQ6R-Pro
ASI 2600MM
ZWO LRGB Filters
RGB - 5 Hrs Each @ 180s
L - 15 Hrs @ 180s

Pix Insight edited - Star align, rgb combine, crop, BlurX, NoiseX, StarX, statistical stretch, curves transform, LRGB Combine, final touch ups with curves transform, stars combine.

Poentacon 500mm g5.6, asi585mc, Ioptron ieq45, sharpcap+photoshop