Abell 12 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: 61 mu. Ori · PK198-06.1 · The star μOri

Abell 12

This planetary nebula is located 7000 light years away in the constellation of Orion at a declination of +10 degrees. It is known as the hidden planetary nebula because of the nearby 4.1 magnitude star Mu Orionis, whose brightness makes it a challenge to image the PN. The star is only 150 light years away, much closer than Abell 12.

The PN is magnitude 12.4 and spans 40 arc-seconds in our apparent view, which corresponds to a diameter of 1.4 light years. Like many PN, this object has a rim dominated by Ha and an inner region dominated by OIII. I like the breakthrough region at the top of the object, perhaps caused by interaction with the interstellar medium (ISM).
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Status	Advanced success
Started	...
Astrometry.net job	5169426
PixInsight job	AJ6YVCJIEKPRP5TJ0HCKP501TZKXA4QZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h02m20s.136
RA (top/left)	06h02m56s.584
RA (top/right)	06h01m43s.215
RA (bottom/right)	06h01m43s.674
RA (bottom/left)	06h02m57s.320

Dec (center)	+09°39′17″.65
Dec (top/left)	+09°46′24″.20
Dec (top/right)	+09°46′15″.28
Dec (bottom/right)	+09°32′10″.24
Dec (bottom/left)	+09°32′19″.77

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Abell 12

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