Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1871  ·  Sh2-199
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IC1871 - The Whirling Dervish, 



    
        

            mr1337
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IC1871 - The Whirling Dervish

Getting plate-solving status, please wait...
IC1871 - The Whirling Dervish, 



    
        

            mr1337
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IC1871 - The Whirling Dervish

Imaging Telescopes Or Lenses
Celestron EdgeHD 8
Imaging Cameras
ZWO ASI 1600MM Pro
Mounts
Software Bisque Paramount MX+
Filters
Chroma Ha 3nm · Chroma 3nm SII · Chroma 3nm OIII
Accessories
ZWO EFW 1.25 8 Position · OAG · MoonLite 2.5 inch Crayford EDGE Focuser · Celestron EdgeHD 0.7x
Software
Adobe Photoshop CC 2018 · Starnet ++ · PixInsight · Astro Pixel Processor
Guiding Telescopes Or Lenses
Celestron EdgeHD 8
Guiding Cameras
ZWO ASI290 Mini

Acquisition details

Frames:
Chroma 3nm OIII: 70x600" (11h 40') (gain: 200.00) -10C bin 1x1
Chroma 3nm SII: 12x1200" (4h) (gain: 200.00) -10C bin 1x1
Chroma 3nm SII: 63x600" (10h 30') (gain: 200.00) -10C bin 1x1
Chroma Ha 3nm: 12x1200" (4h) (gain: 200.00) -10C bin 1x1
Chroma Ha 3nm: 63x600" (10h 30') (gain: 200.00) -10C bin 1x1
Integration:
40h 40'
Darks:
19
Flats:
40
Flat darks:
40
Bortle Dark-Sky Scale:
8.00

RA center: 02h56m15s.850

DEC center: +60°3847.90

Pixel scale: 0.525 arcsec/pixel

Orientation: -83.692 degrees

Field radius: 0.417 degrees

More info:Open 

Resolution: 4572x3454

Locations: Driveway, South Orange, NJ, United States

Data source: Backyard

Description

After capturing Melotte 15 and the Fishhead, I figured I'd go after this interesting area since it was in the neighborhood. Not completely happy with losing some of the fainter regions and some dodgy stars, but it's a start! I think my initital stretch was a bit low which impacted the rest of the processing. This was also my first attempt at 20 minute exposures with the 3nm filters and I do think it helped a bit.

Captured over 17 nights (October: 9, 10, 14, 18, 31) (November: 2, 4, 6, 7, 8, 9, 10, 13, 14, 16, 17, 1 and threw away 18 hours of subs to get clean data.

Comments

Revisions

    IC1871 - The Whirling Dervish, 



    
        

            mr1337
    Original
    IC1871 - The Whirling Dervish, 



    
        

            mr1337
    B
  • Final
    IC1871 - The Whirling Dervish, 



    
        

            mr1337
    C

B

Description: Started from scratch and manually modified the histogram transformation and was able to coax a lot of more detail out, even though it's still a little noisier than I'd like. May add the stars back in a future revision.

Uploaded: ...

C

Description: Now with stars!

Uploaded: ...

Sky plot

Sky plot

Histogram

IC1871 - The Whirling Dervish, 



    
        

            mr1337