NGC 3455
| Galaxy NGC 3455 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 10 h 54 m 31.1 s |
| declination | + 17 ° 17 ′ 05 ″ |
| Appearance | |
| Morphological type | (R ') SAB (rs) b |
| Brightness (visual) | 12.3 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 2.6 ′ × 2 ′ |
| Position angle | 62 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Affiliation | Leo II group NGC 3370 group LGG 219 |
| Redshift | 0.003676 ± 0.000033 |
| Radial velocity | 1102 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(46 ± 3) x 10 6 ly (14.0 ± 1.0) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 21, 1784 |
| Catalog names | |
| NGC 3455 • UGC 6028 • PGC 32767 • CGCG 095-062 • MCG 03-28-031 • IRAS 10518 + 1733 • 2MASX J10543106 + 1717045 • GC 2254 • H II 82 • h 791 • NVSS J105431 + 171707 • LDCE 0778 NED013 • HOLM 221A • KPG 257B | |
NGC 3455 is a barred spiral galaxy of the Hubble type SBb in the constellation Leo on the ecliptic . It is an estimated 46 million light years away from the Milky Way and about 30,000 light years in diameter. Together with NGC 3454 , it forms the galaxy pair Holm 221 or KPG 257 .
In the same area of the sky are u. a. the galaxies NGC 3443 , NGC 3457 , NGC 3461 , IC 656 .
The object was discovered on March 21, 1784 by William Herschel .
Web links
Commons : NGC 3455 - collection of images, videos, and audio files
