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Contains:  IC 523
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Abell 31 in Ha, 


Abell 31 in Ha

Abell 31 in Ha

Technical card

Imaging telescope or lens:Edge HD 1100

Imaging camera:Atik 460EX

Mount:Celestron CGE-Pro

Guiding telescope or lens:William Optics Megrez 72

Guiding camera:Astrolumina ALccd 5.2

Software:PixInsightFitsworkStratonMaxim DL

Filter:Ha 7nm

Resolution: 1329x1077

Dates:March 2, 2013

Frames: 24x600"

Integration: 4.0 hours

Avg. Moon age: 19.57 days

Avg. Moon phase: 76.07% job: 90480

RA center: 133.553 degrees

DEC center: 8.888 degrees

Pixel scale: 3.371 arcsec/pixel

Orientation: -0.183 degrees

Field radius: 0.801 degrees


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.



License: None (All rights reserved)

Sky plot

Sky plot


Abell 31 in Ha, 



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