IC 4870
| Galaxy IC 4870 |
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|---|---|
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| The galaxy IC 4870 as captured by the Hubble Space Telescope | |
| AladinLite | |
| Constellation | peacock |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 19 h 37 m 37.60 s |
| declination | -65 ° 48 ′ 43 ″ |
| Appearance | |
| Morphological type | IBM? / pec / HII / Sy2 |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.60 × 0.9 |
| Position angle | 136 ° |
| Surface brightness | 14.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.002919 ± 0.000003 |
| Radial velocity | 875 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(35 ± 2) x 10 6 ly (10.7 ± 0.7) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | September 1900 |
| Catalog names | |
| IC 4870 • PGC 63432 • ESO 105-G011 • IRAS 19327-6555 • 2MASX J19373757-6548425 • SGC 193248-6555.5 • LEDA 63432 | |
IC 4870 is an active , irregular galaxy with extensive star formation regions of the Hubble type IBm in the constellation Peacock in the southern sky . It is estimated to be 35 million light years from the Milky Way and about 15,000 light years in diameter.
The object was discovered by DeLisle Stewart in September 1900 .
Web links
- SIMBAD Astronomical Database
- astronews.com: Picture of the day June 5, 2018