NGC 3077
| Galaxy NGC 3077 |
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|---|---|
.jpg)
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| Hubble Space Telescope image | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 10 h 03 m 19.1 s |
| declination | + 68 ° 44 ′ 02 ″ |
| Appearance | |
| Morphological type | I0 / pec / HII |
| Brightness (visual) | 10.0 mag |
| Brightness (B-band) | 10.6 mag |
| Angular expansion | 5.2 ′ × 4.7 ′ |
| Position angle | 45 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation |
M81 group Virgo supercluster LGG 176 |
| Redshift | 0.000047 +/- 0.000013 |
| Radial velocity | 14 ± 4 km / s |
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Stroke distance v rad / H 0 |
(5 ± 0) x 10 6 ly (1.65 ± 0.14) Mpc |
| diameter | 20,000 ly |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | November 8, 1801 |
| Catalog names | |
| NGC 3077 • UGC 5398 • PGC 29146 • CGCG 333-013 • MCG + 12-10-017 • IRAS 09592 + 6858 • 2MASX J10031907 + 6844022 • GC 1982 • H I 286 • h 658 • Struve 3 • LDCE 842 NED006 • KTG 28C | |
NGC 3077 is an irregular galaxy with extensive star formation regions of the Hubble type I0 in the constellation Great Bear in the northern sky . It is estimated to be 5 million light years from the Milky Way , about 20,000 light years in diameter, and a member of the M81 group .
About 300 million years ago, NGC 3077 interacted with the galaxy Messier 81 . This encounter created a bond of hydrogen gas between NGC 3077 and Messier 81, in which new stars have been forming for about 100 million years .
The object was discovered on November 8, 1801 by the German-British astronomer Wilhelm Herschel .
Web links
Commons : NGC 3077 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- astronews.de: Picture of the day September 29, 2011
- Spektrum.de : Map of the area