NGC 3473
| Galaxy NGC 3473 |
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|---|---|
![NGC 3473 with LEDA 3763612 (lo), LEDA 213765 (o), NGC 3474 (u) [1]](https://de.wikipedia.org/wiki/Datei:NGC3473_-_SDSS_DR14.jpg)
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| NGC 3473 with LEDA 3763612 (lo), LEDA 213765 (o), NGC 3474 (u) | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 10 h 58 m 05.167 s |
| declination | + 17 ° 07 ′ 27.88 ″ |
| Appearance | |
| Morphological type | SBb: |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.1 ′ × 1.0 ′ |
| Position angle | 40 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.030608 ± 0.000180 |
| Radial velocity | 9176 ± 54 km / s |
|
Stroke distance v rad / H 0 |
(406 ± 29) · 10 6 ly (124.6 ± 8.8) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 21, 1784 |
| Catalog names | |
| NGC 3473 • UGC 6052 • PGC 32978 • CGCG 095-079 • MCG + 03-28-041 • 2MASX J10580519 + 1707281 • GC 2267 • H III 67 • LDCE 769 NED001 • NSA 138448 • WISEA J105805.15 + 170727.0 | |
NGC 3473 is a barred spiral galaxy of the Hubble type SBb with an active galaxy core in the constellation Leo on the ecliptic . It is an estimated 406 million light years from the Milky Way and about 135,000 light years in diameter. Together with NGC 3474 and PGC 213765 , it forms a gravitationally bound galaxy trio .
In the same area of the sky are u. a. the galaxies NGC 3454 , NGC 3455 , NGC 3487 , IC 656 .
The object was discovered by Wilhelm Herschel on March 21, 1784 .
Web links
Commons : NGC 3473 - collection of images, videos, and audio files
