Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 23  ·  NGC 6494  ·  PK009+02.1
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M23 (NGC 6494), a nice medium to large open cluster, Claudio Tenreiro
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M23 (NGC 6494), a nice medium to large open cluster

Getting plate-solving status, please wait...
M23 (NGC 6494), a nice medium to large open cluster, Claudio Tenreiro
Powered byPixInsight

M23 (NGC 6494), a nice medium to large open cluster

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Description

M_23 or NGC 6494, a quite large, in apparent size, open cluster in the Sagittarius constellation and identified, of course by Messier in 1764. A lot of research was done in the 80's on this object.

I found interesting the kind of contrast of the dark areas near the cluster, like providing extra contrast so it can shine nicely...

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