LoTr 5 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: PK339+88.1

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LoTr 5

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LoTr 5

This object is a large, faint planetary nebula located 1600 light years away in the constellation of Coma Berenices. It was discovered in 1980 by Longmore and Tritton and is the highest galactic latitude planetary nebula (+88 degrees).

The nebula is about 11 arc-minutes in diameter in our apparent view. By my calculation, it is about 5 light years in true diameter.

The shape of the nebula appears to be a bi-polar lobal shape, seen almost end-on from our apparent view. Two superimposed circular shapes can be identified. I don't understand why so few planetary nebula have this apparent "dual circle" shape, when the bi-polar type of structure is so common.

The signal is almost all OIII. The bright 8.8 magnitude central star is apparently the source star, but is much brighter than most other planetary nebula source stars I have seen and looks more like a foreground star to me.

Planetary Nebulae
The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M
Narrowband imaging

All of My PN Images (264)
Ancient PN
Owl-Type PN

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	2704013
PixInsight job	223AIPQ7YI0DCG771T18TXPDCROR9AFR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h55m33s.912
RA (top/left)	12h54m01s.460
RA (top/right)	12h56m46s.928
RA (bottom/right)	12h57m07s.153
RA (bottom/left)	12h54m20s.486

Dec (center)	+25°53′28″.70
Dec (top/left)	+25°39′08″.20
Dec (top/right)	+25°34′10″.71
Dec (bottom/right)	+26°07′44″.41
Dec (bottom/left)	+26°12′43″.15

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LoTr 5

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