Rho Ursae Majoris

ρ Ursae Majoris

Location of ρ Ursae Majoris (circled)
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Ursa Major
Right ascension	09^h 02^m 32.7^s
Declination	+67° 37' 47"
Apparent magnitude (V)	+4.74
Characteristics
Spectral type	M3III-IIIbCa1
Astrometry
Distance	287 ± 16 ly (88 ± 5 pc)
Other designations
ρ Ursae Majoris, ρ UMa, Rho UMa, 8 Ursae Majoris, BD+68 551, FK5 338, GC 12447, HD 76827, HIP 44390, HR 3576, PPM 16874, SAO 14742
Database references
SIMBAD	data

Rho Ursae Majoris (Rho UMa, ρ Ursae Majoris, ρ UMa) is a star in the constellation Ursa Major.

Rho Ursae Majoris is a M-type red giant with an apparent magnitude of +4.74. It is approximately 287 light years from Earth.

Naming

In Chinese, 三師 (Sān Shī), meaning Three Top Instructors, refers to an asterism consisting of ρ Ursae Majoris and σ² Ursae Majoris. Consequently, ρ Ursae Majoris itself is known as 三師一 (Sān Shī yī, English: the First Star of Three Top Instructors.).^[1]

References

1. (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 16 日