IC 345
| Galaxy IC 345 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 41 m 09.1 s |
| declination | -18 ° 18 ′ 51 ″ |
| Appearance | |
| Morphological type | S0 / a |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 0.8 ′ × 0.7 ′ |
| Position angle | 42 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | Eridanus group SSRS group 72 NGC 1400 group NGC 1407 group LGG 100 |
| Redshift | 0.004453 ± 0.000110 |
| Radial velocity | 1335 ± 33 km / s |
|
Stroke distance v rad / H 0 |
(56 ± 4) · 10 6 ly (17.1 ± 1.3) Mpc |
| history | |
| discovery | Ormond Stone |
| Discovery date | October 22, 1887 |
| Catalog names | |
| IC 345 • PGC 13552 • CGCG 548-074 • MCG -03-10-032 • 2MASX J03410912-1818510 • GALEX ASC J034109.12-181852.7 • LDCE 251 NED039 | |
IC 345 is a lenticular dwarf galaxy of the Hubble type S0 / a in the constellation Eridanus south of the celestial equator . It is estimated to be 56 million light-years from the Milky Way and about 10,000 light-years across . The galaxy is considered a member of the Eridanus Galaxy Cluster .
The galaxies NGC 1394 , NGC 1402 , NGC 1407 , IC 343 are in the same region of the sky .
The object was discovered by Ormond Stone on October 22, 1887 .