IC 542
| Galaxy IC 542 |
|
|---|---|
|
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| AladinLite | |
| Constellation | Water snake |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 31 m 06.2 s |
| declination | -13 ° 10 ′ 53 ″ |
| Appearance | |
| Morphological type | (R ') SB (rs) 0 / a: / HII |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1.20 × 0.4 |
| Position angle | 96 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.029921 ± 0.000093 |
| Radial velocity | 8970 ± 28 km / s |
|
Stroke distance v rad / H 0 |
(392 ± 27) · 10 6 ly (120.3 ± 8.4) Mpc |
| history | |
| discovery | Stephane Javelle |
| Discovery date | April 22, 1892 |
| Catalog names | |
| IC 542 • PGC 27012 • MCG -02-24-031 • IRAS 09286-1257 • 2MASX J09310624-1310525 • GALEX ASC J093106.17-131052.6 | |
IC 542 is a lenticular galaxy with extensive star formation areas of the Hubble type SB0 / a in the constellation Hydra south of the celestial equator . It is estimated to be 392 million light years from the Milky Way and about 140,000 light years in diameter.
The object was discovered by Stéphane Javelle on April 22, 1892 .
Web links
Individual evidence
Attention: The sorting key “IC 0542” overwrites the previously used key “IC0542”.