NGC 799
| Galaxy NGC 799 |
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|---|---|
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| Image taken with the Very Large Telescope instrument FORS (NGC 799 in the center of the image, above NGC 800 ) | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 02 h 02 m 12.3 s |
| declination | -00 ° 06 ′ 02 ″ |
| Appearance | |
| Morphological type | (R ') SB (s) a: / LINER |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.3 mag |
| Angular expansion | 2 ′ × 1.7 ′ |
| Position angle | 100 ° |
| Surface brightness | 14.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.019730 ± 0.000027 |
| Radial velocity | 5915 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(266 ± 19) · 10 6 ly (81.5 ± 5.7) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | October 9, 1885 |
| Catalog names | |
| NGC 799 • UGC 1527 • PGC 7741 • CGCG 387-029 • MCG + 00-06-023 • 2MASX J02021229-0006025 • GALEXMSC J020212.34-000601.7 • spar 54A • KPG 052B | |
NGC 799 is a barred spiral galaxy of the Hubble type SBa in the constellation Whale in the southern sky . It is about 266 million light years away from the Milky Way and about 130,000 light years in diameter. Together with NGC 800, it forms the gravitationally bound galaxy pair Holm 54 or KPG 52 .
The Type Ia supernova SN2004dt was observed here.
The object was discovered by Lewis Swift on October 9, 1885 using a 16-inch reflector.
Web links
- SIMBAD Astronomical Database
- ESO: The calm before the storm
- astronews.com: Picture of the day August 12, 2013