Abell 39 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: PK047+42.1

Abell 39

This Abell PN is located 4000 light years away in the constellation of Hercules at a declination of +28 degrees. It is a magnitude 13 PN which spans 3 arc-minutes in our apparent view. This corresponds to a diameter of 3 light years.

OIII dominates the signal in this nebula – I didn’t even try to capture the minimal amount of HII present. The blue progenitor star is clearly visible. The spherical nebula has a thin rim and shows some texture throughout the inner region.

The white smudge seen at 2 o’clock inside of the nebula is the distant galaxy LEDA 2817010. It is 1.7 billion light years away and has a diameter of 100,000 light years. A few more galaxies seem visible through the nebula but I could not confirm them.

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Status	Advanced success
Started	...
Astrometry.net job	5679574
PixInsight job	0SJBBA5DHEH0CZDD155AI1MKK48JYLB6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h27m33s.858
RA (top/left)	16h28m18s.996
RA (top/right)	16h26m47s.718
RA (bottom/right)	16h26m48s.797
RA (bottom/left)	16h28m19s.897

Dec (center)	+27°54′31″.93
Dec (top/left)	+28°01′34″.17
Dec (top/right)	+28°01′14″.60
Dec (bottom/right)	+27°47′28″.60
Dec (bottom/left)	+27°47′48″.31

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