u/Techno-Scientist

I could only take around 3.5 hours of this target because the weather was not behaving... But still it came out pretty good! Next time I will add Ha data as well

Equipment and acquisition:

- OTA: Askar 71F

- Mount: Teseek 17

- Camera: ASI585MC Air

- 102 x 120 sec (approx. 3.5 hours)

Processing (Pixinsight)

- WBPP 2X drizzle, dynamic crop, SPCC, SPFC, multiscale gradient correction, blurX, starX

- Starless: setiastro statistical stretch, curves transformation with range and color masks, createHDRimage, noiseX

- Stars: Setiastro star stretch, star recombination in Pixelmath

Shot as a 2-pane mosaic, when I started acquisition I didn't think it would come out with such detail! I really like this object and it's my first dark nebula :)

Equipment and acquisition:

- Seestar S50, EQ mode, no filter

- Pane 1, 887 x 30 sec

- Pane 2, 948 x 30 sec

Processing (Pixinsight):

- WBPP 2x drizzle

- Dynamic crop, SPCC, SPFC, multiscale gradient correction, photometric mosaic, RC Astro tools

- Starless: Setiastro statistical stretch, then manual curves transformation with different range and color masks

- Stars: setiastro star stretch, star recombination

- Final curves transformation

Taken during a trip to Tenerife some days ago - I was lucky with the weather but still some dust in suspension so the image came out a bit softer. Still, not bad for such a short integration time!

Astrobin here

Equipment and acquisition

- OTA: Askar 71F

- Camera: ASI585MC Air, -5º C

- Mount: TeSeek 17

- Guiding: SVBony 30mm + ASI120MM

- L-Ultimate (41 x 300 sec) and L-Synergy (17 x 300 sec), approx. 4.8 hours in total

Processing (Pixinsight)

- WBPP, dynamic crop, SPCC, SetiAstro AutoDBE, blurX (correct only), light noiseX, starX- Starless: SetiAstro Perfect Palette Picker (SHO), SCNR, Narrowband normalization, initial mild setiastro statistical stretch, then manual curves transformations with different range and color masks, create HDR image, final noiseX. Stars: DBXtract Ha, SII and OIII, then setiastro NB to RGB star combination, star rexombination in Pixelmath

I had the chance of imaging this object while on vacation at a bortle 4 location, I didn't expect much with my setup but I actually like the result a lot!

Equipment and acquisition:

- Seestar S50, EQ mode

- 1280 x 30 sec no filter 

- 294 x 30 sec LP filter (for Ha signal)

Processing (Pixinsight)

- WBPP, dynamic crop, SPCC, SPFC and multiscale gradient correction, RC Astro tools (blurX, noiseX, starX)

- LP image: DBXtract, keep Ha channel. Combine Ha into broadband RGB with NBRGB combination script

- Broadband image: setiastro statistical stretch, then manual curves with various range and color masks. Star recombination, final retouches in Lighroom for android

I really like this object in HOO, had a lot of fun imaging and post-processing it! I purposedly left the stars understretched because I love how the filaments of the object show up this way

Astrobin here

Equipment and acquisition:

- OTA: Askar 71F with 0.75X reducer

- Main camera: ASI585MC Air

- Mount: Teseek 17

- Guiding: ASI585MC Air (ASI220MM)

- L-Ultimate filter

- 102 x 300sec (8.5 h)

- 20 flats, 25 darks, 25 bias

Post-processing (PI with RC tools and SetiAstro plugins)

- WBPP 2X drizzle

- BlurX (correct only), setiastro Auto DBE, SPCC, BlurX, StarX

- Starless: SetiAstro soft statistical stretch, then manual curves transformation with different range and color masks

- Narrowband normalization (HOO), NoiseX

- Stars: Setiastro star stretch, manual curves

- Star recombination with Pixelmath, final retouches in Lightroom

This is my second, two dualband-filter project with my new rig - I had the opportunity of travelling to two Bortle ~4 locations the last two weekends and I really like how the details popped up, specially the Soap Bubble Nebula (bottom left, faint but I was happy to see it!). Roughly 10 hours of integration combining both dual band filters

Astrobin here

Equipment and acquisition:

• OTA: Askar 71F
• Main camera: ASI585MC AIR
• Mount: Teseek 17
• Others: ZWO EAF, ZWO EFW
• Guiding: SVBony 30mm, ASI120MM Mini
• L-Ultimate (66 x 300 sec) and L-Synergy filters (56 x 300 sec)
• 20 flats, 25 darks, 25 bias for each filter

Processing (PI) using RC Astro tools and

• WBPP of both images, 2X drizzle
• SPFC, Multiscale gradient correction, SPCC, BlurX, StarX
• SetiAstro Perfect Palette Picker, statistical stretch, then curves transformation with different range and color masks, createHDR Image, NoiseX
• Stars from both filters: pixelmath addition, setiastro star stretch, manual curves to control saturation
• Star recombination with Pixelmath
• Final retouches in light room

Taken from Madrid, about 5 hours of 30 sec exposures with a L-Pro filter. Not bad for such a short integration time in a heavily light-polluted city, I would like to add some more integration time in the future!

Processed in Pixinsight: WBPP, SetiAstro AutoDBE, BlurX, StarX. Initial SetiAstro statistical stretch, then manual curves with masks on starless image. Stars: SetiAstro star stretch, then star recombination in Siril. Final retouches in LightRoom for android

This is my first image with my new rig using the Askar 0.75X reducer and two dualband filters to get an SHO palette. Still figuring out how to process this dataset but I like the result for a first try :)

Equipment and acquisition:

- OTA: Askar 71F with 0.75X reducer

- Main camera: ASI585MC Air

- Guiding: SVBony 30mm and ASI120MM mini

- ZWO EAF

- L-Ultimate filter, 71x300 sec

- L-Synergy filter, 42x300 sec

- Mixture of bortle 4 and bortle 9 locations

Processing

Pixinsight WBPP plus RC Astro Tools

SetiAstro plugin for Pixinsight (perfect palette picker and initial stretching)

I recently put together my new rig after starting in the hobby with a Seestar S50, and I'm really enjoying it! This is my first light, pretty happy with the results, especially after shooting from a Bortle 9 location (Paris, France)

- OTA: Askar 71F

- Focuser: ZWO EAF

- Camera: ASI585MC Air cooled to -10C, gain 252

- Guiding: SvBony 30mm + ASI120MM mini (the guide sensor of my Air camera doesn't work well with the light pollution levels and my filter)

- Acquisition: 208x300 sec with L-Ultimate filter, 100x5 sec and 50x15 sec with L-Pro

- Stacked and processed in Pixinsight using HDR composition for the L-pro stacks and Pixelmath to exchange the bright core of the L-ultimate stack with the L-Pro image

I really enjoyed processing this one! I didn't expect to get such a clear signal from a bortle 9 location (Madrid, Spain) but the colors popped up very easily :)

Acquired with both an Ha-OIII filter (Seestar S50 LP) and an external SII-OIII (Askar C2)

Equipment and acquisition:

- Seestar S50, EQ mode, 30 sec exposures

- LP Ha-OIII filter about 5 hours of integration; SII-OIII filter about 2.5 hours of integration

Processing (PI and Siril)

- WBPP of both images, SetiAstro AutoDBE, SPCC, BlurX (correct only), starX

- DBXtract script to generate Ha, OIII and SII images, setiastro statistical stretch and manual curves transformation of each channel

- SetiAstro Perfect Palette Picker, then curves transformation with different range and color masks

- CreateHDR Image, NoiseX, BlurX

- Stars from both filters: pixelmath addition, setiastro star stretch, manual curves to control saturation

- Star recombination in Siril with star reduction script

- Final retouches in light room

This one was hard to process... I guess I'm limited by what a Seestar S50 can do, but I cannot get the background nebulosity out properly without it getting too patchy. In any case, not bad for a limited amount of integration time!

Equipment and acquisition:

- Seestar S50, EQ mode, 30 sec exposures

- LP Ha-OIII filter about 7 hours of integration (5 from Bortle 9, 2 from Bortle 4)

- For star color, 1.5h of integration without filter

Processing (PI and Siril)

- WBPP of both images, SetiAstro AutoDBE, SPCC, BlurX (correct only), starX

- Starless Ha-OIII: narrowband normalization, setiastro statistical stretch, manual curves transformations with different range and color masks, noiseX

- Stars from broadband: setiastro star stretch, manual curves to control saturation

- Recombination in Siril with star reduction script

- Final retouches in light room

Taken with a Seestar S50 from Madrid, Spain. Roughly 1 hour of 30 sec exposures. I followed a different pipeline (Outten Astrophotography) for stretching and I could resolve many stars in the core!

Equipment and acquisition:

- Seestar S50, EQ mode, 30 sec exposures

- UV/IR cut filter

Processing (PI and Siril):

- WBPP 2x drizzle

- SetiAstro DBE, SPCC, BlurX, NoiseX

- SetiAstro statistical stretch (soft)

- CreateHDR image

- StarX

- Starless (core): curves transformations with range mask to control saturation and intensity

- Stars: starmask, curves transformations

- Star recombination (siril), star reduction

Taken with a Seestar S50 in 2025 and 2026 from bortle 4-5 locations, about 5 hours of integration in broadband and 2 hours of H-alpha. Mixture of 10 and 30 exposures, I like how it came out :)

Equipment and acquisition:

- Seestar S50, EQ mode, 10-30 sec exposures

- UV/IR cut or internal LP filter (Ha-OIII)

Processing (PI and Siril):

- WBPP, 2X drizzle

- Dynamic crop, SetiAstro AutoDBE

- SPCC

- BlurX

- Ha-OIII stack: extract channel, on R channel applied continuum subtraction (setiastro tools), noiseX, slight stretch with SetiAstro statistical stretch script.

- Broadband: starX, initial light stretch with setiastro statistical stretch, then combine R channel from Ha-OIII stack with broadband using Pixelmath (Benjamin DeHaven method)

- Combined starless image: manual curves transformation with different range and color masks; createHDR image

- Stars: setiastro star stretch

- Star recomposition in Siril, final NoiseX and color adjustments in Lightroom

This was the second object I imaged when I started with my Seestar S50 exactly one year ago! So I went back to it with more experience, and it's great to see the progress, both in understanding the acquisition process and, more importantly, post-processing. It's a night and day difference!

Equipment and acquisition:

- Seestar S50, no filter for broadband stack

- Seestar S50 with internal Ha-OIII filter for Ha stack

- EQ mode, about 5.5 hours in broadband and 2 hours in Ha-OIII, bortle 4

Processing (PI and Siril)

- WBPP, 2X drizzle for both image sets

- Dynamic crop

- Graxpert, blurX

- LP stack: extract R channel, SetiAstro continuum subtraction, HT, noiseX

- Broadband stack: blurx, noisex, setiastro statistical stretch

- Added R channel from LP to broadband in pixelmath

- StarX

- curves transformation with various masks on starless image, createHDRimage

- Star recombination in Siril, final retouches un Lightroom