Theta Ursae Majoris

Starbox begin
name=Theta Ursae Majoris A/B Starbox observe
epoch=J2000
ra=09^h 32^m 51.4^s
dec=+51° 40′ 38″
appmag_v=3.17
constell=Ursa Major Starbox character
class=F6 IV/M6
b-v=0.46
u-b=0.03
variable=Suspected Starbox astrometry
radial_v=14.7
prop_mo_ra=-947.06
prop_mo_dec=-535.6
parallax=74.15
p_error=0.74
absmag_v=2.52 Starbox detail
mass=1.5-1.6
radius=?
luminosity=7.6
temperature=6,400
metal=60%
rotation=12 km/s.
age=3 × 10⁹ Starbox catalog
names=Al Haud, Sarir, 25 Ursae Majoris, Gl 354, HR 3775, BD +52°1401, HD 82328, LHS 270, LTT 12519, GCTP 2266.00, SAO 27289, FK5 358, GC 13157, ADS 7420, CCDM 09329+5141, HIP 46853.

Theta Ursae Majoris (θ UMa / θ Ursae Majoris) is a binary star in the constellation Ursa Major. It is approximately 44.0 light years from Earth. It also has the traditional names Al Haud and Sarir.

The primary component, Theta Ursae Majoris A, is a yellow-white F-type subgiant with an apparent magnitude of +3.17. The 14th magnitude companion star is 4.1 arcseconds away from the primary.

External links

* [http://www.astro.uiuc.edu/~kaler/sow/thetauma.html Theta Ursae Majoris] by Professor Jim Kaler.

ee also

* Sarir - a medieval state