IC 742
Galaxy IC 742 |
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SDSS recording | |
AladinLite | |
Constellation | lion |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 11 h 51 m 02.2 s |
declination | + 20 ° 47 ′ 59 ″ |
Appearance | |
Morphological type | SBab |
Brightness (visual) | 13.9 likes |
Brightness (B-band) | 14.7 mag |
Angular expansion | 1.20 × 1.1 |
Surface brightness | 14.1 mag / arcmin² |
Physical data | |
Redshift | 0.021431 +/- 0.000023 |
Radial velocity | 6425 +/- 7 km / s |
Stroke distance v rad / H 0 |
(285 ± 20) x 10 6 ly (87.4 ± 6.1) Mpc |
history | |
discovery | Lewis Swift |
Discovery date | April 22, 1889 |
Catalog names | |
IC 742 • UGC 6822 • PGC 37056 • CGCG 127-073 • MCG + 04-28-068 • 2MASX J11510223 + 2047591 • USGC U427 NED16 • SDSS J115102.25 + 204758.9 |
IC 742 is a bar-spiral galaxy of the Hubble type SBab in the constellation Leo north of the ecliptic . It is estimated to be 285 million light years away from the Milky Way and has a diameter of about 100,000 ly.
In the same area of the sky are the galaxies NGC 3929 , NGC 3937 , NGC 3940 , IC 2968 , among others .
The object was discovered on April 22, 1889 by the astronomer Lewis Swift .