NGC 7788
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|
| NGC 7790 (bottom left) NGC 7788 (center) | |
| AladinLite | |
| Constellation | Cassiopeia |
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Position equinox : J2000.0 |
|
|---|---|
| Right ascension | 23 h 56 m 45.6 s |
| declination | + 61 ° 24 '00 ″ |
| Appearance
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| classification | I2p |
| Brightness (visual) | 9.4 mag |
| Angular expansion | 4.0 |
| Physical data
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| distance | 7750 ly (2374 pc ) |
| diameter | 9 ly |
| Age | 40 million years |
| history | |
| Discovered by | John Herschel |
| Discovery time | October 5, 1829 |
| Catalog names | |
| NGC 7788 • C 2354 + 611 • OCl 275 • Cr 459 • GC 5030 • h 2283 • | |
NGC 7788 is an open star cluster of the Trumpler type I2p in the constellation Cassiopeia in the northern sky . It is around 7700 light years away from the solar system, has a diameter of around 9 light years and is around 40 million years old.
It may form a double cluster with NGC 7790 , which is about a quarter of a degree to the southeast.
The object was discovered on October 5th, 1829 by John Herschel .
Individual evidence
- ↑ NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ a b c SEDS : NGC 7788
- ^ A site Devoted to Stellar Clusters in the Galaxy and the Magellanic Clouds
- ↑ Seligamn