NGC 648
| Galaxy NGC 648 / IC 146 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 38 m 39.8 s |
| declination | -17 ° 49 ′ 52 ″ |
| Appearance | |
| Morphological type | SA0- |
| Brightness (visual) | 14.4 mag |
| Brightness (B-band) | 15.4 mag |
| Angular expansion | 0.7 ′ × 0.4 ′ |
| Position angle | 114 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.035334 ± 0.000143 |
| Radial velocity | 10593 ± 43 km / s |
|
Stroke distance v rad / H 0 |
(473 ± 33) · 10 6 Lj (145.1 ± 10.2) Mpc |
| history | |
| discovery | Francis P. Leavenworth |
| Discovery date | 1886 |
| Catalog names | |
| NGC 648 • IC 146 • PGC 6083 • ESO 543-006 • MCG -03-05-011 • 2MASX J01383980-1749525 • SGC 013615-1805.2 • | |
NGC 648 = IC 146 is an elliptical galaxy of the Hubble type E-S0 in the constellation Whale south of the ecliptic . It is estimated to be 473 million light years from the Milky Way and about 100,000 light years in diameter.
The object was discovered in 1886 by the American astronomer Francis Preserved Leavenworth (as NGC 648 ) and on September 30, 1892 by the French astronomer Stéphane Javelle (as IC 146 ).
Web links
Commons : NGC 648 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 648. Deep Sky Observer's Companion, accessed September 5, 2015 .
Individual evidence
Attention: The sorting key "NGC 0648" overwrites the previously used key "IC0146".