IC 781
| Galaxy IC 781 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 20 m 03.3 s |
| declination | + 14 ° 57 ′ 41 ″ |
| Appearance | |
| Morphological type | dS0 (4), N |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.1 ′ × 0.9 ′ |
| Position angle | 45 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | Virgo cluster |
| Redshift | 0.004550 ± 0.000030 |
| Radial velocity | 1364 ± 9 km / s |
|
Stroke distance v rad / H 0 |
(59 ± 4) · 10 6 ly (18.0 ± 1.3) Mpc |
| history | |
| discovery | Guillaume Bigourdan |
| Discovery date | May 10, 1888 |
| Catalog names | |
| IC 781 • PGC 39754 • CGCG 099-017 • MCG + 03-32-002 • VCC 389 • GALEX ASC J122003.32 + 145741.6 | |
IC 781 is a lenticular dwarf galaxy of the Hubble type S0 / a in the constellation Coma Berenices in the northern sky . It is an estimated 59 million light years away from the Milky Way and has a diameter of about 20,000 ly. The galaxy is listed as a member of the Virgo Galaxy Cluster under catalog number VVC 389 .
The galaxies NGC 4254 , NGC 4262 , NGC 4298 , NGC 4302 are located in the same area of the sky .
The object was discovered on May 10, 1888 by Guillaume Bigourdan .