23 Ursae Majoris

Starbox short
name=23 Ursae Majoris A/B
epoch=J2000.0 (ICRS)
constell=Ursa Major
ra=09^h 31^m 31.708^s / 28.2^s
dec=+63° 03′ 42.70″ / 43″
spectral=A: F0IV
appmag_v=+3.65 / +9.0
dist_ly=75.5 ± 1.1
dist_pc=23.1 ± 0.3
names=23 UMa, h UMa, NN 3559, HR 3757,
HD 81937, BD +63 845, FK5 355, HIP 46733, SAO 14908, GC 13109,
ADS 7402, CCDM J09315+6303A/B

Starbox begin
name=23 Ursae Majoris CStarbox observe
epoch=J2000.0 (ICRS)
constell=Ursa Major
ra=09^h 31^m 18.7^s
dec=+63° 02′ 38″
appmag_v=+10.5

23 Ursae Majoris, or 23 UMa, is a triple star in the constellation Ursa Major. Its main components, 23 UMa A and 23 UMa B, are approximately 75.5 light years from Earth.

The primary component, 23 Ursae Majoris A, is a yellow-white F-type subgiant with an apparent magnitude of +3.65. At a separation of 22.7 arcseconds is the 9th magnitude 23 Ursae Majoris B. A and B form a physical binary. The third, optical, component, 23 Ursae Majoris C, is a magnitude +10.5 star 99.6 arcseconds away.

External links

* [http://www.astro.uiuc.edu/~kaler/sow/23uma.html 23 Ursae Majoris at Jim Kaler's STARS]