Mrk 809
| Merging galaxy pair Mrk 809 |
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|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 22 m 34.0 s |
| declination | + 13 ° 43 '00 ″ |
| Appearance | |
| Morphological type | 1: Sc 2: P |
| Brightness (visual) | 1: 13.4 mag 2: 14.2 mag |
| Brightness (B-band) | 1: 14.1 mag 2: 15.0 mag |
| Angular expansion | 1: 1.3 ′ × 0.6 ′ 2: 1.0 ′ × 0.5 ′ |
| Position angle | 1: 75 ° 2: 80 ° |
| Surface brightness | 1: 14.0 mag / arcmin² 2: 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.025591 ± 0.000030 |
| Radial velocity | 7672 ± 9 km / s |
|
Stroke distance v rad / H 0 |
(344 ± 24) x 10 6 ly (105.4 ± 7.4) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | June 4, 1886 |
| Catalog names | |
|
NGC 5591 • CGCG 075-023 • MCG + 02-37-006 • IRAS 14201 + 1356 • KUG 1420 + 139 • Mrk 809 • KPG 424
Mrk 809W : PGC 51360 |
|
Markarian 809 = NGC 5591 is a merging galaxy pair in the constellation Bootes , which is about 344 million light years from the Milky Way, which is counted among the Markarian galaxies .
The entry NGC 5591 in the New General Catalog goes back to an observation of this object by Lewis Swift on June 4, 1886. At that time he probably only saw the core of the western, brighter galaxy.