NGC 2688
| Galaxy NGC 2688 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 08 h 55 m 11.6 s |
| declination | + 49 ° 07 ′ 21 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 15.8 mag |
| Brightness (B-band) | 16.8 likes |
| Angular expansion | 0.3 ′ × 0.2 ′ |
| Position angle | 96 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.052067 ± 0.000085 |
| Radial velocity | (15,609 ± 25) km / s |
|
Stroke distance v rad / H 0 |
(699 ± 49) · 10 6 Lj (214.2 ± 15.0) Mpc |
| history | |
| discovery | RJ Mitchell |
| Discovery date | March 11, 1858 |
| Catalog names | |
| NGC 2688 • PGC 25048 • MCG + 08-16-040 • 2MASX J08551161 + 4907218 • NSA 16049 | |
NGC 2688 is a spiral galaxy of Hubble type Sb in the constellation Ursa Major . It is an estimated 699 million light years away from the Milky Way and has a diameter of about 60,000 ly.
In the same area of the sky are the galaxies NGC 2684 , NGC 2686 , NGC 2687 and NGC 2689 .
The object was discovered by RJ Mitchell on March 11, 1858 .