NGC 3561
| Galaxy NGC 3561 / A |
|
|---|---|
|
|
| Focus on Arp 105 | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 11 m 13.2 s |
| declination | + 28 ° 41 ′ 47 ″ |
| Appearance | |
| Morphological type | S0 ^ 0 ^: pec / Sy3 (NGC 3561) SA (r) a pec (NGC 3561A) |
| Brightness (visual) | 13.8 (NGC 3561) 13.4 (NGC 3561A) mag |
| Brightness (B-band) | 14.7 (NGC 3561) 14.3 (NGC 3561A) mag |
| Angular expansion | 0.8 × 0.8 '(NGC 3561) 0.9' × 0.9 '(NGC 3561A) |
| Surface brightness | 13.2 (NGC 3561) 13.1 (NGC 3561A) mag / arcmin² |
| Physical data | |
| Affiliation | Abell 1185 |
| Redshift | 0.029367 ± 0.000033 0.029356 ± 0.000022 |
| Radial velocity | (8804 ± 10) km / s (8801 ± 7) km / s |
|
Stroke distance v rad / H 0 |
(392 ± 27) x 10 6 ly (120.2 ± 8.4) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | March 30, 1827 |
| Catalog names | |
| NGC 3561 / A • UGC 6224 • PGC 33991/2 • CGCG 155-090 / 156-011 • MCG + 5-27-10 / 11 • IRAS 11085 + 2859 • Arp 105 • VV 237 • GC 2326 • h 835 • LDCE 0784 NED002 / 3 | |
NGC 3561 is a lenticular galaxy in the constellation Ursa Major . The galaxy interacts with the spiral galaxy NGC 3561A and forms the galaxy pair Arp 105 . The system is about 392 million light years from the Milky Way. Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of elliptical galaxies associated with spirals (Arp catalog) .
The object was discovered by John Herschel on March 30, 1827 .
Web links
Commons : NGC 3561 - collection of images, videos, and audio files
literature
- Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide , Richmond 2006, ISBN 978-0-943396-76-7