Astronomy:NGC 781
From HandWiki
Short description: Spiral galaxy in the constellation Aries
| NGC 781 | |
|---|---|
 SDSS image of NGC 781 | |
| Observation data (J2000 epoch) | |
| Constellation | Aries |
| Right ascension | 02h 00m 08.97485s[1] |
| Declination | +12° 39′ 22.0060″[1] |
| Redshift | 0.011631[2] |
| Helio radial velocity | 3467 km/s[2] |
| Distance | 154.2 ± 10.9 Mly (47.29 ± 3.34 Mpc)[3] |
| Apparent magnitude (B) | 14.00[2] |
| Characteristics | |
| Type | S?[3] |
| Other designations | |
| UGC 1482, MCG+02-06-010, PGC 7577[2] | |
NGC 781 is a spiral galaxy in the constellation Aries. It is estimated to be about 154 million light years from the Milky Way[3] and has a diameter of approximately 70,000 light years. NGC 781 was discovered on October 16, 1784 by the German-British astronomer William Herschel.[4][5]
See also
References
- ↑ 1.0 1.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.
- ↑ 2.0 2.1 2.2 2.3 "NGC 781". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+781.
- ↑ 3.0 3.1 3.2 "Results for object NGC 0781 (NGC 781)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=NGC%20781&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ Ford, Dominic. "The galaxy NGC 781 - In-The-Sky.org" (in en). https://in-the-sky.org/data/object.php?id=NGC781.
- ↑ "Revised NGC Data for NGC 781". http://spider.seds.org/ngc/revngcic.cgi?NGC%20781.
External links
 |  |
