NGC 3953
| Galaxy NGC 3953 |
|
|---|---|
|
|
| Amateur astronomical recording. | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 53 m 48.9 s |
| declination | + 52 ° 19 ′ 36 ″ |
| Appearance | |
| Morphological type | SB (r) bc / HII / LINER |
| Brightness (visual) | 9.8 likes |
| Brightness (B-band) | 10.6 mag |
| Angular expansion | 6.9 ′ × 3.6 ′ |
| Position angle | 13 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | M109 group , LGG 258 |
| Redshift | 0.003510 ± 0.000007 |
| Radial velocity | 1052 ± 2 km / s |
|
Stroke distance v rad / H 0 |
(50 ± 4) x 10 6 ly (15.4 ± 1.1) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | April 12, 1789 |
| Catalog names | |
| NGC 3953 • UGC 6870 • PGC 37306 • CGCG 269-013 • MCG + 09-20-26 • IRAS 11511 + 5236 • 2MASX J11534902 + 5219355 • GC 2606 • H V 45 • h 1011 • | |
NGC 3953 is a barred spiral galaxy of the Hubble type SB (r) bc in the constellation Great Bear that is an estimated 50 million light years away from the Milky Way .
The object was discovered on April 12, 1789 by the astronomer William Herschel with an 18.7 inch reflecting telescope.
Supernovae
Two supernovae were observed in NGC 3953; both were type Ia: SN 2001dp and SN 2006bp .
Surroundings
NGC 3953 is a member of the M-109 group, a group of galaxies that includes approximately 50 galaxies.
Web links
Individual evidence
- ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ a b c d e f SEDS : NGC 3953
- ↑ Seligman
- ↑ NASA / IPAC Extragalactic Database . In: Results for NGC 3953 . Retrieved November 15, 2006.
- ↑ NASA / IPAC Extragalactic Database . In: Results for SN 2001dp . Retrieved November 15, 2006.
- ↑ NASA / IPAC Extragalactic Database . In: Results for SN 2006bp . Retrieved November 15, 2006.
- ↑ RB Tully: Nearby Galaxies Catalog . Cambridge University Press, Cambridge 1988, ISBN 0-521-35299-1 .
- ↑ P. Fouque, E. Gourgoulhon, P. Chamaraux, G. Paturel: Groups of galaxies within 80 Mpc. II - The catalog of groups and group members . In: Astronomy and Astrophysics Supplement . 93, 1992, pp. 211-233. bibcode : 1992A & AS ... 93..211F .
- ^ A. Garcia: General study of group membership. II - Determination of nearby groups . In: Astronomy and Astrophysics Supplement . 100, 1993, pp. 47-90. bibcode : 1993A & AS..100 ... 47G .
- ↑ G. Giuricin, C. Marinoni, L. Ceriani, A. Pisani: Nearby Optical Galaxies: Selection of the Sample and Identification of Groups . In: Astrophysical Journal . 543, No. 1, 2000, pp. 178-194. arxiv : astro-ph / 0001140 . bibcode : 2000ApJ ... 543..178G . doi : 10.1086 / 317070 .