NGC 4633
| Galaxy NGC 4633 / IC 3688 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 42 m 37.4 s |
| declination | + 14 ° 21 ′ 26 ″ |
| Appearance | |
| Morphological type | SBcd: / sp / HII |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 2.0 ′ × 0.9 ′ |
| Position angle | 33 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Affiliation | Virgo cluster |
| Redshift | 0.000971 ± 0.000013 |
| Radial velocity | 291 ± 4 km / s |
|
Stroke distance v rad / H 0 |
(11 ± 1) x 10 6 ly (3.44 ± 0.25) Mpc |
| history | |
| discovery | Edward Swift |
| Discovery date | April 27, 1887 |
| Catalog names | |
| NGC 4633 • IC 3688 • UGC 7874 • PGC 42699 • CGCG 099-111 • 100-001 • MCG + 03-32-085 • IRAS F12400 + 1438 • VCC 1929 • GALEX ASC J124237.31 + 142126.4 • HOLM 445B • EVCC 1071 | |
NGC 4633 = IC 3688 is a 13.3 mag bright spiral dwarf galaxy with extensive star formation areas of the Hubble type SBd in the constellation of Berenike's hair in the northern sky . It is estimated to be 11 million light years from the Milky Way and about 5,000 light years across. The galaxy forms the gravitationally bound pair Holm 445 with NGC 4634 and is listed under the catalog number VVC 1929 as part of the Virgo galaxy cluster .
In the same area of the sky are u. a. the galaxies NGC 4611 , IC 3637 , IC 3658 , IC 3735 .
The object was discovered by Edward D. Swift on April 27, 1887 .
Web links
- NGC 4633. SIMBAD , accessed January 28, 2015 .
- NGC 4633. DSO Browser, accessed January 28, 2015 .
- Auke Slotegraaf: NGC 4633. Deep Sky Observer's Companion, accessed on January 28, 2015 .