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| NGC 752 | |
|---|---|
 NGC 752 | |
| Observation data (J2000 epoch) | |
| Right ascension | 01h 57m 41s[1] |
| Declination | +37° 47.1′[1] |
| Distance | 1,470 ly[2] (450 pc) |
| Apparent magnitude (V) | 5.7[3] |
| Apparent dimensions (V) | 75′ |
| Physical characteristics | |
| Other designations | Caldwell 28, Cr 23 |
| Associations | |
| Constellation | Andromeda |
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.[4]
The large cluster lies 1,400 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.[3][5]
- ^ a b "NGC 752". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 February 2018.
- ^ Gaysin, Renat; Hojaev, Alisher (2022). Open cluster NGC752: Revision by GAIA EDR3 data. Cambridge Workshop on Cool Stars. p. 82. Bibcode:2022csss.confE..82G. doi:10.5281/zenodo.7481659.
- ^ a b Dunlop, Storm (2005). Atlas of the Night Sky. Collins. ISBN 978-0-00-717223-8.
- ^ Seligman, Courtney. "New General Catalogue objects: NGC 750 - 759". cseligman.com. Retrieved 10 February 2018.
- ^ Frommert, Kronberg, SEDS: NGC 752
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