NGC 7243 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Lacerta (Lac) · Contains: NGC 7243 · PGC 167749 · PGC 167753 · PGC 167755

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NGC 7243

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NGC 7243

In my opinion, astrophotography requires great faith in the process. By this I mean that, while taking subs or performing the initial processing, the target often appears so faint and ill defined that it doesn't seem possible that a great image could result. But, putting aside that doubt and completing the image, something wondrous almost always happens, as if by magic, to make the image come alive. Except in a few cases. This is one of those cases.

This object is a large sparse open cluster located 2800 light years away in the faint northern constellation of Lacerta. It contains about 40 stars. The stars are primarily whitish-blue with a few orange members.

The outline of the cluster is not obvious to me. In fact, a 1999 paper studying this object concluded that there was no strong evidence for a cluster and that the number of stars present does not exceed the expected background count. I hate to say it, but this object to me does not merit a Caldwell designation. There are too many other wonderful objects in the sky which could have been included instead. But, I have tremendous respect for Mr. Moore and his list, so I will just assume that I am not seeing this object in its full glory.

The refractors!
Cloudy Nights
Open Star Clusters

Caldwell Catalog (Complete*)
Open Clusters

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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.

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Status	Advanced success
Started	...
Astrometry.net job	1846831
PixInsight job	VO7EQPCKIJBDZ4CHEOP7572MZTI0MSGX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h15m18s.442
RA (top/left)	22h17m03s.740
RA (top/right)	22h17m04s.231
RA (bottom/right)	22h13m31s.356
RA (bottom/left)	22h13m34s.509

Dec (center)	+49°52′09″.91
Dec (top/left)	+49°21′59″.99
Dec (top/right)	+50°22′19″.26
Dec (bottom/right)	+50°22′14″.36
Dec (bottom/left)	+49°21′54″.16

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