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Abell 21 - Medusa Nebula - Ha(sG)OIII Bi-colour, 





    
        

            Roberto Botero
Abell 21 - Medusa Nebula - Ha(sG)OIII Bi-colour

Abell 21 - Medusa Nebula - Ha(sG)OIII Bi-colour

Technical card

Resolution: 2723x2165

Dates:Jan. 27, 2015Feb. 6, 2015

Frames:
Baader Planetarium Baader Ha 7nm: 8x1800" bin 2x2
Baader Planetarium Baader OIII 8.5nm: 9x1800" bin 2x2

Integration: 8.5 hours

Avg. Moon age: 12.35 days

Avg. Moon phase: 73.78%

Astrometry.net job: 533056

RA center: 112.266 degrees

DEC center: 13.241 degrees

Pixel scale: 1.036 arcsec/pixel

Orientation: -0.591 degrees

Field radius: 0.500 degrees

Locations: Home - Petts Wood, Petts Wood, United Kingdom

Description

Taken just before and after full moon. Will add RGB stars later. Bi-colour created using Cannistra's method.

Ha: 8x1800s (2x2)
OIII: 9x1800s (2x2)

Comments

Author

rbotero
Roberto Botero
License: None (All rights reserved)
1663
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Abell 21 - Medusa Nebula - Ha(sG)OIII Bi-colour, 





    
        

            Roberto Botero

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