NGC 7766
| Galaxy NGC 7766 |
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|---|---|
![NGC 7768, LEDA 1798869 (o), NGC 7766 (m), LEDA 1797966 [1] (u)](https://de.wikipedia.org/wiki/Datei:NGC7766_-_SDSS_DR14.jpg)
|
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| NGC 7768, LEDA 1798869 (o), NGC 7766 (m), LEDA 1797966 (u) | |
| AladinLite | |
| Constellation | Pegasus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 23 h 50 m 55.9 s |
| declination | + 27 ° 07 ′ 35 ″ |
| Appearance | |
| Morphological type | C. |
| Brightness (visual) | 15.5 mag |
| Brightness (B-band) | 16.5 mag |
| Angular expansion | 0.5 'x 0.2' |
| Position angle | 43 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.027159 ± 0.000173 |
| Radial velocity | 8142 ± 52 km / s |
|
Stroke distance v rad / H 0 |
(372 ± 26) x 10 6 ly (114.0 ± 8.0) Mpc |
| history | |
| discovery | Ralph Copeland |
| Discovery date | October 9, 1872 |
| Catalog names | |
| NGC 7766 • PGC 72611 • CGCG 477-018 • MCG + 04-56-017 • 2MASX J23505589 + 2707347 • GALEX ASC J235055.89 + 270736.7 • HOLM 818D | |
NGC 7766 is a compact galaxy of Hubble type C in the constellation Pegasus at the northern sky . It is an estimated 372 million light years away from the Milky Way and about 55,000 light years in diameter. Together with NGC 7765 , NGC 7767 and NGC 7768 , it forms the galaxy group Holm 818 .
The object was discovered by Ralph Copeland on October 9, 1872 .