NGC 2555
Galaxy NGC 2555 |
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SDSS recording | |
AladinLite | |
Constellation | Water snake |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 08 h 17 m 56.4 s |
declination | + 00 ° 44 ′ 44 ″ |
Appearance | |
Morphological type | SB (rs) off |
Brightness (visual) | 12.5 mag |
Brightness (B-band) | 13.3 mag |
Angular expansion | 1.9 ′ × 1.4 ′ |
Position angle | 115 ° |
Surface brightness | 13.4 mag / arcmin² |
Physical data | |
Redshift | 0.014720 ± 0.000090 |
Radial velocity | 4413 ± 27 km / s |
Stroke distance v rad / H 0 |
(190 ± 13) · 10 6 ly (58.4 ± 4.1) Mpc |
history | |
discovery | William Herschel |
Discovery date | December 20, 1784 |
Catalog names | |
NGC 2555 • UGC 4319 • PGC 23259 • CGCG 003-028 • MCG + 00-21-012 • 2MASX J08175639 + 0044445 • GC 1641 • H III 256 • h 498 • NSA 156594 • HOLM 95A |
NGC 2555 is a barred spiral galaxy of the Hubble type SBab in the constellation Hydra south of the ecliptic . It is estimated to be 190 million light years from the Milky Way and about 105,000 ly in diameter.
The object was discovered by Wilhelm Herschel on December 20, 1784 .