IC 3687
| Galaxy IC 3687 |
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|---|---|
![IC 3687 [1]](https://de.wikipedia.org/wiki/Datei:IC3687.jpg)
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| IC 3687 | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 42 m 15.10 s |
| declination | + 38 ° 30 ′ 12.0 ″ |
| Appearance | |
| Morphological type | IBm |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 2.5 ′ × 1.5 ′ |
| Position angle | 9 ° |
| Surface brightness | 14.4 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 4258 group LGG 290 |
| Redshift | 0.001181 ± 0.000003 |
| Radial velocity | 354 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(18 ± 1) x 10 6 ly (5.4 ± 0.38) Mpc |
| diameter | 12-14,000 ly |
| history | |
| discovery | Max Wolf |
| Discovery date | March 21, 1903 |
| Catalog names | |
| IC 3687 • UGC 7866 • PGC 42656 • MCG + 07-26-39 • HIJASS J1242 + 38 • NSA 141982 | |
IC 3687 is an irregular galaxy of the Hubble type IBm in the constellation Hounds in the northern sky . It is an estimated 18 million light years from the Milky Way and has a maximum extent of about 12,000 light years . Together with 23 other galaxies, it forms the NGC 4258 group ( LGG 290 ) and is listed as a member of the Canes Venatici I group .
The object was discovered by Max Wolf on March 21, 1903 .