NGC 5994
| Galaxy NGC 5994 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Snake |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 46 m 53.2 s |
| declination | + 17 ° 52 ′ 21 ″ |
| Appearance | |
| Morphological type | SBbc |
| Brightness (visual) | 14.8 mag |
| Brightness (B-band) | 15.6 mag |
| Angular expansion | 0.4 ′ × 0.2 ′ |
| Position angle | 87 ° |
| Surface brightness | 11.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.010974 ± 0.000033 |
| Radial velocity | (3290 ± 10) km / s |
|
Stroke distance v rad / H 0 |
(151 ± 10) · 10 6 ly (46.2 ± 3.2) Mpc |
| history | |
| discovery | Bindon Stoney |
| Discovery date | March 9, 1851 |
| Catalog names | |
| NGC 5994 • UGC 10033 • PGC 56020 • CGCG 107-036 • MCG + 03-40-38 • Arp 72 • VV 16 • | |
NGC 5994 is a 14.8 mag bright barred spiral galaxy of the Hubble type SBbc in the constellation Snake and about 155 million light years from the Milky Way. It is in gravitational interaction with NGC 5996 , with it forms the constellation Arp 72 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class spiral galaxies with a small companion of high surface brightness on one arm (Arp catalog) .
The galaxy was discovered on March 9, 1851 by Bindon Stoney , an assistant to William Parsons .
Web links
- NGC 5994. SIMBAD, accessed May 22, 2016 .
- NGC 5994. DSO Browser, accessed May 22, 2016 .
- Auke Slotegraaf: NGC 5994. Deep Sky Observer's Companion, accessed on May 22, 2016 (English).
- Arp Atlas of Peculiar Galaxies
- Seligman Arp