NGC 752

NGC 752
Observation data (J2000 epoch)
Constellation	Andromeda
Right ascension	01h 57m 55s
Declination	+37° 51′ 57″
Distance	1,300 ly (399 pc)
Apparent magnitude (V)	5.7[1]
Apparent dimensions (V)	75′
Physical characteristics
Radius	unknown
Other designations	Caldwell 28
See also: Open cluster, List of open clusters

NGC 752 (also known as Caldwell 28) is an open cluster in the constellation Andromeda. The cluster was discovered by Caroline Herschel in 1783 and cataloged by her brother William Herschel in 1786, although an object that may have been NGC 752 was described by Giovanni Batista Hodierna before 1654.

The large cluster lies 1,300 light-years away from the Earth and is easily seen through binoculars, although it may approach naked eye visibility under good observing conditions. A telescope reveals about 60 stars no brighter than 9th magnitude within NGC 752.^[1][2]

Components

NAME	Right ascension	Declination	Apparent magnitude (V)	Spectral type	Database references
NGC 752 1 (HD 11624)	01h 54m 57.6607s	+37° 07' 41.845	6.281	K0	Simbad
NGC 752 2 (BD+36 345)					Simbad

References

1. ^ ^{a b} Dunlop, Storm (2005). Atlas of the Night Sky. Collins. ISBN 0-00-717223-0. 
2. ^ Frommert, Kronberg, SEDS: NGC 752

External links

• SEDS – NGC 752
• perseus.gr – NGC 752 in a hires LRGB CCD image
• NGC 752 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Coordinates: 01^h 57^m 55^s, +37° 51′ 57″