IC 20
| Galaxy IC 20 |
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|---|---|
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| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 28 m 39.7 s |
| declination | -13 ° 00 ′ 37 ″ |
| Appearance | |
| Morphological type | S0 |
| Brightness (visual) | 14.2 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.6 ′ × 0.6 ′ |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.025945 ± 0.000040 |
| Radial velocity | 7778 ± 12 km / s |
|
Stroke distance v rad / H 0 |
(350 ± 24) x 10 6 ly (107.3 ± 7.5) Mpc |
| diameter | 60,000 ly |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | November 3, 1891 |
| Catalog names | |
| IC 20 • PGC 1755 • ESO 581-009 • MCG -02-02-021 • 2MASX J00283968-1300366 • GALEX ASC J002839.55-130036.2 | |
IC 20 is a lenticular galaxy of the Hubble type S0? in the constellation whale south of the ecliptic . It is estimated to be 350 million light years away from the Milky Way and has a diameter of around 60,000 ly.
In the same area of the sky are the galaxies NGC 135 , IC 16 , IC 23 , among others .
The object was discovered by Stéphane Javelle on November 3, 1891 .
Web links
Individual evidence
Attention: The sorting key "IC 0020" overwrites the previously used key "IC0020".