deeplook.at

Astrophotography from Ursa Major Observatory @ ROSA

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deeplook.at
deeplook.at
10micron GM2000 HPS II
[OIII] 71x10 min / Ha 67x10 min L 48x10 min, RGB 19x10 min per filter
40 h 30 min
data acquired remotely using Voyager by Leonardo Orazi
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Abell 31 wide field in Cancer
“Mizar” Takahashi Epsilon 130ED, f/D = 3.3 G2-8300 Moravian , Baader LRGB - Ha - [OIII] filter
Planetary Nebula
~16’
12.2 mag
Cnc
2021-02-17+19+20 + 02-28+ 2021-03-01+02+04+05+08+09+12+18+19+20+22 (15 nights)
2 000 light years
Abell 31 is one of the apparently largest PNe in the sky. At the same time it has a very low surface brightness of about 26.9 mag/arc-sec².