NGC 681
| Galaxy NGC 681 |
|
|---|---|
![NGC 681 with LEDA 978715 (ro) [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC681_-_SDSS_DR14.jpg)
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| NGC 681 with LEDA 978715 (ro) SDSS image | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 49 m 10.8 s |
| declination | -10 ° 25 ′ 35 ″ |
| Appearance | |
| Morphological type | SAB (s) off |
| Brightness (visual) | 12 likes |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 2.7 ′ × 1.8 ′ |
| Position angle | 60 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 681 group LGG 33 |
| Redshift | 0.005872 ± 0.000022 |
| Radial velocity | 1760 ± 7 km / s |
|
Stroke distance v rad / H 0 |
(79 ± 6) · 10 6 ly (24.3 ± 1.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | November 28, 1785 |
| Catalog names | |
| NGC 681 • PGC 6671 • MCG -02-05-052 • IRAS 01467-1040 • 2MASX J01491084-1025355 • GC 404 • H II 481 • h 2436 • HIPASS J0149-10a • LDCE 112 NED001 | |
NGC 681 (also known as the Little Sombrero Galaxy ) is a barred spiral galaxy of the Hubble type SBab in the constellation Whale south of the ecliptic . It is an estimated 79 million light years from the Milky Way and about 65,000 light years across . Together with NGC 701 , IC 1738 and PGC 6667 it forms the NGC 681 group .
The object was discovered on November 28, 1785 by the German-British astronomer Wilhelm Herschel .
NGC 681 group ( LGG 33 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 681 | PGC 6671 | 79 |
| NGC 701 | PGC 6826 | 83 |
| IC 1738 | PGC 6832 | 579 |
| PGC 6667 | MCG-02-05-053 | 89 |
Web links
Commons : NGC 681 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 681. Deep Sky Observer's Companion, accessed on September 18, 2015 .