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Contains:  IC 523
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Abell 31 / Sh2-290 - dark as hell, 





    
        

            equinoxx
Abell 31 / Sh2-290 - dark as hell

Abell 31 / Sh2-290 - dark as hell

Technical card

Resolution: 1329x1077

Dates:March 4, 2013

Frames: 414x60"

Integration: 6.9 hours

Avg. Moon age: 21.71 days

Avg. Moon phase: 54.65%

Astrometry.net job: 88978

RA center: 133.553 degrees

DEC center: 8.888 degrees

Pixel scale: 3.371 arcsec/pixel

Orientation: 179.834 degrees

Field radius: 0.801 degrees

Description

Abell 31 is an interesting ancient asymmetrical planetary nebula in Cancer. Its shape is caused by interaction with the interstellar medium, as it is moving through space at high speed. The PN was discovered in 1955 by George Abell on the POSS plates. It is very faint, at a surface brightness of Mag 26,9 per sq. arcsec. and I found this one was an absolute killer of a challenge.

02.03.2013 - 24 x 600s 7nm Baader Ha 
03.03.2013 - 16 x 60s a LRGB channel
04.03.2013 - 11 x 600s 8,5nm Baader O3

Comments

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equinoxx
equinoxx
License: None (All rights reserved)
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Abell 31 / Sh2-290 - dark as hell, 





    
        

            equinoxx

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