NGC 861
| Galaxy NGC 861 |
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|---|---|
![NGC 861 [1]](https://de.wikipedia.org/wiki/Datei:NGC_0861_DSS.jpg)
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| NGC 861 | |
| AladinLite | |
| Constellation | triangle |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 15 m 51.14 s |
| declination | + 35 ° 54 ′ 48.9 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.5 ′ × 0.5 ′ |
| Position angle | 38 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 8199 ± 5 |
| Radial velocity | 0.027349 ± 0.000017 km / s |
|
Stroke distance v rad / H 0 |
(372 ± 26) x 10 6 ly (114.0 ± 8.0) Mpc |
| history | |
| discovery | Heinrich d'Arrest |
| Discovery date | September 18, 1865 |
| Catalog names | |
| NGC 861 • UGC 1737 • PGC 8652 • CGCG 523-005 • MCG + 06-06-003 • IRAS 2128 + 3540 • 2MASX J02155114 + 3554488 • LDCE 156 NED002 • WISEA J021551.13 + 355449.1 | |
NGC 861 is a spiral galaxy of Hubble type Sb in the constellation Triangulum at the northern sky . It is an estimated 372 million light years from the Milky Way and about 165,000 light years in diameter.
The object was discovered by Heinrich d'Arrest on September 18, 1865 .
Web links
Commons : NGC 861 - collection of images, videos, and audio files
