IC 172
| Galaxy IC 172 |
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|---|---|
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| SDSS image from IC 172 | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 54 m 54.2 s |
| declination | + 00 ° 48 ′ 40 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 14.0 mag |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 0.4 ′ × 0.3 ′ |
| Position angle | 90 ° |
| Surface brightness | 11.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.027379 +/- 0.000020 |
| Radial velocity | 8208 +/- 6 km / s |
|
Stroke distance v rad / H 0 |
(369 ± 26) x 10 6 ly (113.0 ± 7.9) Mpc |
| history | |
| discovery | Stephane Javelle |
| Discovery date | December 12, 1893 |
| Catalog names | |
| IC 172 • PGC 7116 • CGCG 386-056 • MCG + 00-05-049 • IRAS 01523 + 0033 • KUG 0152 + 005 • 2MASX J01545425 + 0048399 • GALEX ASC J015454.11 + 004840.7 | |
IC 172 is a radio galaxy of the Hubble type S? in the constellation whale south of the celestial equator . It is an estimated 369 million light years away from the Milky Way and has a diameter of around 40,000 ly.
In the same area of the sky are the galaxies NGC 768 , IC 173 , IC 175 .
The object was discovered by Stéphane Javelle on December 12, 1893 .
Web links
Individual evidence
Attention: The sort key “IC 0172” overwrites the previously used key “IC0172”.