IC 991
| Galaxy IC 991 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 17 m 48.6 s |
| declination | -13 ° 52 ′ 23 ″ |
| Appearance | |
| Morphological type | SB (s) c: / HII |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.5 ′ × 0.9 ′ |
| Position angle | 109 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.015517 ± 0.000017 |
| Radial velocity | 4652 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(205 ± 14) · 10 6 ly (62.8 ± 4.4) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | July 23, 1892 |
| Catalog names | |
| IC 991 • PGC 51059 • MCG -02-36-019 • IRAS 14151-1338 • 2MASX 14174858-1352224 • HIPASS J1417-13 | |
IC 991 is a spiral galaxy with extensive star formation regions of the Hubble type Sc in the constellation Virgo on the ecliptic . It is estimated to be 205 million light years from the Milky Way and about 90,000 light years in diameter.
The galaxy IC 4392 is located in the same area of the sky .
The Type II supernova NAME AT 2017ffk was observed here.
The object was discovered by Stéphane Javelle on July 23, 1892 .
Web links
Individual evidence
Attention: The sort key "IC 0991" overwrites the previously used key "IC0991".