IC 2557
Galaxy IC 2557 |
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SDSS recording | |
AladinLite | |
Constellation | Little lion |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 10 h 16 m 05.9 s |
declination | + 38 ° 06 ′ 33 ″ |
Appearance | |
Morphological type | S0 / a |
Brightness (visual) | 15.3 mag |
Brightness (B-band) | 16.1 mag |
Angular expansion | 0.30 × 0.2 |
Position angle | 93 ° |
Surface brightness | 12.1 mag / arcmin² |
Physical data | |
Redshift | 0.021642 ± 0.000133 |
Radial velocity | 6488 ± 40 km / s |
Stroke distance v rad / H 0 |
(290 ± 20) x 10 6 ly (88.8 ± 6.2) Mpc |
history | |
discovery | Stéphane Javelle |
Discovery date | May 16, 1903 |
Catalog names | |
IC 2557 • PGC 29977 • CGCG 183-007 • MCG + 06-23-003 • 2MASX J10160583 + 3806334 • GALEX ASC J101605.87 + 380633.4 |
IC 2557 is a lenticular galaxy of the Hubble type S0 / a in the constellation Little Leo in the northern sky . It is an estimated 290 million light years from the Milky Way and about 25,000 light years in diameter .
The galaxies NGC 3151 , NGC 3159 , NGC 3161 , NGC 3163 are located in the same area of the sky .
The object was discovered by Stéphane Javelle on May 16, 1903 .