10 Ursae Majoris
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Lynx |
| Right ascension | 09h 00m 38.38067s [1] |
| Declination | +41° 46′ 58.6051″ [1] |
| Apparent magnitude (V) | 3.96 |
| Absolute magnitude (V) | 2.93[2] |
| Distance | 52[2] ly (16 pc) |
| Spectral type | F4V [1] |
| Other designations | |
| Database references | |
| SIMBAD | data |
10 Ursae Majoris (10 UMa) is a star in the constellation Lynx. Its apparent magnitude is 3.96.
It is the third-brightest star in Lynx. Originally in the neighbouring constellation Ursa Major, it became part of Lynx with the official laying down of the constellation borders.[3] Appearing to be of magnitude 3.97, it can be split by a telescope to reveal a yellow-white main sequence star of spectral type F4 V of magnitude 4.11 and a star very similar to the Sun of spectral class G5V and magnitude 6.18. The two are 10.6 astronomical units apart and orbit each other every 21.78 years.[4]
The total system mass of 2.54 solar masses, with the primary being 1.44 solar masses, and secondary 1.1 solar masses.[4]
References
- 1 2 3 SIMBAD, 10 Ursae Majoris (accessed 20 November 2012)
- 1 2 "10 Ursae Majoris (HIP 44248)". Ashland Astronomy Studio. Retrieved 3 Jan 2013.
- ↑ Bagnall, Philip M. (2012). The Star Atlas Companion: What You Need to Know about the Constellations. New York, New York: Springer. p. 281. ISBN 1-4614-0830-X.
- 1 2 Kaler, James B. "10 UMA (10 Ursae Majoris) = HR 3579 Lyncis". Stars. University of Illinois. Retrieved 9 March 2016.
This article is issued from Wikipedia - version of the 10/3/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.