NGC 899
| Galaxy NGC 899 |
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|---|---|
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| Galaxientrio KTS 16 | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 21 m 53.1 s |
| declination | -20 ° 49 ′ 24 ″ |
| Appearance | |
| Morphological type | IB (s) m / HII |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 1.8 ′ × 1.3 ′ |
| Position angle | 116 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 908 group LGG 56 |
| Redshift | 0.005214 ± 0.000027 |
| Radial velocity | 1563 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(68 ± 5) x 10 6 ly (20.9 ± 1.5) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | November 13, 1835 |
| Catalog names | |
| NGC 899 • PGC 8990 • ESO 545-007 • MCG -04-06-030 • IRAS 2195-2103 • 2MASX J02215313-2049236 • SGC 21935-2103.0 • GC 534 • NVSS J022153-204926 • LDCE 161 NED001 • KTS 16A | |
NGC 899 is an irregular galaxy with extensive star formation regions of the Hubble type IBm in the constellation Whale south of the ecliptic . It is estimated to be 68 million light years away from the Milky Way and has a diameter of around 35,000 ly. Together with NGC 907 and IC 223 , it forms the gravitationally bound galaxy trio KTS 16 .
The object became the object on November 13, 1835 by John Herschel .