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M54 (NGC 6715)

Typ:Starcluster
Constellation:Sagittarius
Size:9.1'
Distance:87.4 kLj
Brightness:8.4 mag
Position:RA:18h 55m 03.33s DEC:−30° 28′ 47.5″
Max. height:9.52°, Jul. (midnight at +50°N)
Show in Stellarium
Discovered:Charles Messier, 1778
Details:Read more on Wikipedia

The next image shows the full frame in a manual edit (580mm, ASI2600MM, LRGB 1h).