NGC 7686
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| SDSS recording, angle of view 30 '× 30' | |
| AladinLite | |
| Constellation | Andromeda |
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Position equinox : J2000.0 |
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|---|---|
| Right ascension | 23 h 30 m 07.4 s |
| declination | + 49 ° 08 ′ 03 ″ |
| Appearance
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| classification | IV1p |
| Brightness (visual) | 5.6 likes |
| Angular expansion | 15.0 ' |
| Number of stars | about 80 |
| Brightest star | HD 221246 (6.2 mag) mag |
| Physical data
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| Affiliation | Milky Way |
| distance | 5000 ly (1534 pc ) |
| diameter | 100 ly |
| history | |
| Discovered by | Wilhelm Herschel |
| Discovery time | December 3, 1787 |
| Catalog names | |
| NGC 7686 • C 2327 + 488 • Cr 456 • GC 4976 • H VIII 69 • h 2249 • OCl 251 | |
NGC 7686 in the constellation Andromeda is believed to be an asterism that is listed as an open star cluster in many catalogs . It has an apparent diameter of 15 'and an apparent magnitude of 5.6 mag. NGC 7686 contains about 80 stars, the brightest of which is HD 221246 with an apparent magnitude of 6.2 mag.
It was discovered by Wilhelm Herschel on December 3, 1787 .
Individual evidence
- ↑ NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ a b c SEDS : NGC 7686
- ↑ AL Tadross: A catalog of 120 NGC open star cluster . In: Journal of the Korean Astronomical Society , 44, 2011, pp. 1-11. doi: 10.5303 / JKAS.2011.44.1.1 .
- ↑ Johnson et al .: Galactic clusters as indicators of stellar evolution and galactic structure ; in: Lowell Observatory Bulletin No. 113, Vol. V, pp. 133ff. bibcode : 1961LowOB ... 5..133J
- ↑ Seligman