Abell 22 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Canis Minor (CMi) · Contains: PK215+11.1

Abell 22

This planetary nebula, also known as both Kohoutek 1-11 and PN G215.6+11.1, is located 2800 light years away in the constellation of Canis Minor at a declination of +3 degrees. It is a magnitude 15 PN.

We are looking at this bi-polar PN from a side-on view. The bright central torus section is the only part of the nebula that can be seen visually. It spans 2 arc-minutes in our apparent view, which corresponds to a span of 2 light years. Counting the full length of the hour-glass shaped nebula, including the pair of faint break-out lobes, doubles the size to 4 light years.

Like many PN, the outer rim is stronger in HII while the inner section is more balanced with OIII. The progenitor star is a bit too faint to be seen in my image.

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Status	Advanced success
Started	...
Astrometry.net job	5452978
PixInsight job	ZN9KE6SSFX1AD9ZKLUD4YHGFZUNB5G4Q
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h36m08s.660
RA (top/left)	07h36m50s.305
RA (top/right)	07h35m23s.866
RA (bottom/right)	07h35m27s.700
RA (bottom/left)	07h36m53s.441

Dec (center)	+02°42′19″.83
Dec (top/left)	+02°50′00″.00
Dec (top/right)	+02°48′48″.19
Dec (bottom/right)	+02°34′39″.61
Dec (bottom/left)	+02°35′51″.30

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