NGC 752 is a large open cluster in the constellation of Andromeda.

The cluster shines at an apparent magnitude of 5.7 and has an apparent size of 50 arcminutes. It lies at a distance of 1,300 light-years away. It is located 4.75 degrees south of Almach (Gamma Andromedae).

This fairly loose cluster is estimated to be more than 1 billion years old. It contains 60 stars, the brightest of which is 7th magnitude. Two bright yellow-giant field stars form a wide optical double can be seen southwest of the cluster - 56 Andromedae at magnitude 5.7 and HD 11727 at magnitude 5.9. They are separated by 3.3 arcminutes but are not a true binary system. They are at top left in the image.

NGC 752 was discovered by Caroline Herschel in 1783 and cataloged by William Herschel, her brother, in 1786. It may have been known to Hodierna before 1654.

North is to the bottom in the above image.

NGC 752 Catalogs: NGC 752 Object Type: Open Cluster Magnitude: 5.7v Size: 50' Constellation: Andromeda Image Field Centered At: RA: 01h 57m 39s Dec: +37° 41' 46"