IC 687
| Galaxy IC 687 |
|
|---|---|
![SDSS image from IC 687 [1]](https://de.wikipedia.org/wiki/Datei:IC687_-_SDSS_DR14.jpg)
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| SDSS image from IC 687 | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 24 m 17.334 s |
| declination | + 47 ° 50 ′ 51.07 ″ |
| Appearance | |
| Morphological type | E / S0 |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.80 ′ × 0.8 ′ |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.033807 ± 0.000087 |
| Radial velocity | (10,135 ± 26) km / s |
|
Stroke distance v rad / H 0 |
(455 ± 32) · 10 6 ly (139.4 ± 9.8) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | May 11, 1890 |
| Catalog names | |
| IC 687 • PGC 35029 • CGCG 242-033 • MCG + 08-21-032 • 2MASX J11241735 + 4750511 • GALEX ASC J112417.42 + 475050.9 • WISEA J112417.34 + 475051.1 • 2MIG 1576 | |
IC 687 is an elliptical galaxy of the Hubble type E / S0 in the constellation Great Bear in the northern sky . It is an estimated 455 million light years from the Milky Way and about 105,000 light years in diameter.
The object was discovered by Lewis Swift on May 11, 1890 .