Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  12.96  ·  511 Davida  ·  HD162958  ·  HD162997  ·  HD163082  ·  HD163135  ·  HD163136  ·  HD163158  ·  HD163188  ·  HD163208  ·  HD163245  ·  HD163270  ·  HD163293  ·  HD163294  ·  HD163315  ·  HD163351  ·  HD163390  ·  HD163408  ·  HD163409  ·  HD163426  ·  HD163427  ·  HD163450  ·  HD163476  ·  HD163477  ·  HD163478  ·  HD163494  ·  HD163514  ·  HD163515  ·  HD163536  ·  HD163552  ·  And 93 more.
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M23 / NGC 6494 Open Cluster in Sagittarius, Evangelos Souglakos
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M23 / NGC 6494 Open Cluster in Sagittarius

Getting plate-solving status, please wait...
M23 / NGC 6494 Open Cluster in Sagittarius, Evangelos Souglakos
Powered byPixInsight

M23 / NGC 6494 Open Cluster in Sagittarius

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Description

Open cluster NGC 6494 in Sagittarius above is a rich dense cluster comprised of over 100 member stars which are of uniform brightness and well detached from the rich background sky. The cluster spans 30 arc-minutes in diameter or 15-20 light-years across. M23 lies at a distance of 2,150 light-years away and is dated at a mere 220-300 million years-old and as evidenced by the predominance of white hot stars in the image below. The cluster is best observed using low magnifications (50-100x) during mid-summer as it appoaches the southern meridian near midnight. NGC 6494 was discovered by Charles Messier in 1764.

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M23 / NGC 6494 Open Cluster in Sagittarius, Evangelos Souglakos