NGC 7777
| Galaxy NGC 7777 |
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|---|---|
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| NGC 7777 with LEDA 214997 (top left) | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 23 h 53 m 12.5 s |
| declination | + 28 ° 17 '00 ″ |
| Appearance | |
| Morphological type | S0 |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 1.2 ′ × 0.8 ′ |
| Position angle | 48 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.023319 ± 0.000090 |
| Radial velocity | 6991 ± 27 km / s |
|
Stroke distance v rad / H 0 |
(320 ± 23) x 10 6 ly (98.2 ± 6.9) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | October 25, 1876 |
| Catalog names | |
| NGC 7777 • UGC 12829 • PGC 72744 • CGCG 498-026 • MCG + 05-56-018 • 2MASX J23531248 + 2817001 • GALEX ASC J235312.25 + 281658.6 • LDCE 1601 NED002 | |
NGC 7777 is a lenticular galaxy and is located in the constellation Pegasus in the northern sky . It is an estimated 320 million light years away from the Milky Way and has a diameter of about 110,000 ly. The galaxy has an angular extent of 1.2 '× 0.8' and an apparent magnitude of 14.4 mag.
In the same area of the sky is u. a. the galaxy NGC 7775 .
The object was discovered on October 25, 1876 by Édouard Jean-Marie Stephan .