M28 (NGC 6626)

Typ:Starcluster
Constellation:Sagittarius
Size:11.2'
Distance:17.9 kLj
Brightness:7.7 mag
Position:RA:18h 24m 32.89s DEC:−24° 52′ 11.4″
Max. height:15.13°, Jun. (midnight at +50°N)
Show in Stellarium
Discovered:Charles Messier, 1764
Details:Read more on Wikipedia

The next image shows the full frame in a manual edit (580mm, ASI2600MM, LRGB 1h). The bright star is named Kaus Borealis and belongs to constellation sagittarius.