NGC 2947
Galaxy NGC 2947 / IC 547 / IC 2494 |
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AladinLite | |
Constellation | Water snake |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 09 h 36 m 05.8 s |
declination | -12 ° 26 ′ 12 ″ |
Appearance | |
Morphological type | SAB (r) bc |
Brightness (visual) | 12.4 mag |
Brightness (B-band) | 13.2 mag |
Angular expansion | 1.5 '× 1.4' |
Position angle | 25 ° |
Surface brightness | 13.1 mag / arcmin² |
Physical data | |
Redshift | 0.009356 ± 0.000020 |
Radial velocity | 2805 ± 6 km / s |
Stroke distance v rad / H 0 |
(117 ± 8) x 10 6 ly (35.9 ± 2.5) Mpc |
history | |
discovery | Francis P. Leavenworth |
Discovery date | May 6, 1886 |
Catalog names | |
NGC 2947 • IC 547 • IC 2494 • PGC 27309 • MCG -02-25-004 • IRAS 09336-1212 • 2MASX J09360583-1226120 • GALEX ASC J093605.83-122611.5 • LDCE 657 NED003 |
NGC 2947 = IC 547 = IC 2494 is a bar-spiral galaxy of the Hubble type SBbc in the constellation Hydra south of the ecliptic . It is estimated to be 117 million light years from the Milky Way and about 50,000 light years in diameter.
The property was discovered by Francis Preserved Leavenworth on May 6, 1886 .