NGC 7819
| Galaxy NGC 7819 |
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|---|---|
![NGC 7819 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC7819_-_SDSS_DR14.jpg)
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| NGC 7819 SDSS image | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 04 m 24.5 s |
| declination | + 31 ° 28 ′ 19 ″ |
| Appearance | |
| Morphological type | SB (s) b / HII |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.5 ′ × 1.2 ′ |
| Position angle | 109 ° |
| Surface brightness | 14.0 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 7819 group NGC 7831 group LGG 1 |
| Redshift | 0.016538 ± 0.000020 |
| Radial velocity | 4958 ± 6 km / s |
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Stroke distance v rad / H 0 |
(230 ± 16) x 10 6 ly (70.4 ± 4.9) Mpc |
| diameter | 100,000 ly |
| history | |
| discovery | Ralph Copeland |
| Discovery date | October 26, 1872 |
| Catalog names | |
| NGC 7819 • UGC 26 • PGC 303 • MCG + 05-01-029 • IRAS 18 + 3111 • 2MASX J00042449 + 3128193 • NVSS J000424 + 312818 • LDCE 4 NED001 | |
NGC 7819 is a barred spiral galaxy with extensive star formation from Hubble type SBb in the constellation Pegasus at the northern sky . It is an estimated 230 million light years from the Milky Way and about 100,000 light years in diameter . The galaxy is considered a member of the NGC 7831 group ( LGG 1 ).
In the same area of the sky are u. a. the galaxies NGC 7805 and NGC 7806 .
The object was discovered by Ralph Copeland on October 26, 1872 .