M103 (NGC 581)

Typ:Open cluster
Distance:10 kLj
Brightness:7.4 mag
Position:RA:01h 33.2m DEC:+60° 42′
Max. height:79.30°, Oct. (midnight at +50°N)
Show in Stellarium
Discovered:Pierre Méchain, 1781
Details:Read more on Wikipedia

Near M103, top right in this image, there are some other starclusters as well, like NGC654, NGC663 and NGC659 in the bottom: