NGC 7794
| Galaxy NGC 7794 |
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|---|---|
![NGC 7794 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC7794_-_SDSS_DR14.jpg)
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| NGC 7794 SDSS image | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 23 h 58 m 34.120 s |
| declination | + 10 ° 43 ′ 41.30 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.4 mag |
| Angular expansion | 1.3 '× 1.0' |
| Position angle | 0 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.017612 ± 0.000033 |
| Radial velocity | 5280 ± 10 km / s |
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Stroke distance v rad / H 0 |
(242 ± 17) x 10 6 ly (74.2 ± 5.2) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | November 23, 1785 |
| Catalog names | |
| NGC 7794 • UGC 12872 • PGC 73103 • CGCG 433-010 • MCG + 02-01-004 • IRAS 23560 + 1026 • KUG 2356 + 104 • 2MASX J23583407 + 1043417 • GC 5036 • H III 466 • h 2288 • NVSS J235834 + 104342 • LDCE 1602 NED004 • WISEA J235834.09 + 104342.2 | |
NGC 7794 is a spiral galaxy of Hubble type Sbc in the constellation Pegasus at the northern sky . It is an estimated 242 million light years from the Milky Way and about 90,000 light years in diameter.
The type II supernova SN 1995ai was observed here.
The object was discovered by Wilhelm Herschel on November 23, 1785 .
Web links
Commons : NGC 7794 - collection of images, videos, and audio files
