Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Getting plate-solving status, please wait...

Medusa Nebula / Abell 21 / Sh2-274

Technical card

Resolution: 4500x3250

Dates:Dec. 8, 2018Dec. 11, 2018Dec. 19, 2018Dec. 20, 2018Dec. 27, 2018Jan. 4, 2019Jan. 7, 2019Jan. 11, 2019Jan. 12, 2019Jan. 15, 2019Jan. 16, 2019Jan. 22, 2019Jan. 26, 2019Jan. 27, 2019Jan. 29, 2019

Frames:
Blue: 100x150" (gain: 139.00)
Green: 74x150" (gain: 139.00)
ZWO H-alpha 7nm: 129x300" (gain: 139.00)
ZWO OIII: 165x300" (gain: 139.00)
ZWO Red: 72x150" (gain: 139.00)

Integration: 34.8 hours

Avg. Moon age: 12.61 days

Avg. Moon phase: 47.65%

Bortle Dark-Sky Scale: 7.50

Astrometry.net job: 2543730

Locations: Home Roof (Bortle 7-8 / Est. Sky Quality: 18.53), Springfield, PA, United States

Data source: Backyard

Description

I had a little mishap with my flockboard during capture that caused a few issues, most of which I just cropped out, but it still left me with some strange star colors. Special thanks to Jarrett Trezzo for pointing out exactly what the main issue was there - I fixed it as much as possible. I had trouble bringing out the fainter strands of hydrogen and oxygen, but at least I got something there. I'm satisfied overall, but there's room for improvement. Maybe I'll come back one day?

Comments

Author

Chris-PA
Chris Sullivan
License: None (All rights reserved)
3856
Like

Revisions

C

Desaturated the cyan and yellow in the background.

Histogram

Medusa Nebula / Abell 21 / Sh2-274, 





    
        

            Chris Sullivan