Rho Ursae Majoris

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ρ Ursae Majoris
Ursa Major IAU.svg
Cercle rouge 100%.svg

Location of ρ Ursae Majoris (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Major
Right ascension 09h 02m 32.7s
Declination +67° 37' 47"
Apparent magnitude (V) +4.74
Distance 287 ± 16 ly
(88 ± 5 pc)
Spectral type M3III-IIIbCa1
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

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[edit]

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[edit]