Psi Ursae Majoris

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Psi Ursae Majoris
Diagram showing star positions and boundaries of the Ursa Major constellation and its surroundings
Diagram showing star positions and boundaries of the Ursa Major constellation and its surroundings

Location of ψ Ursae Majoris (circled)
Observation data
ICRS
)
Constellation Ursa Major
Right ascension 11h 09m 39.80868s[1]
Declination +44° 29′ 54.5520″[1]
Apparent magnitude (V) +3.01[2]
Characteristics
Spectral type K1 III[3]
U−B color index +1.12[2]
B−V color index +1.14[2]
Distance
144.5 ± 0.9 ly
(44.3 ± 0.3 pc)
Absolute magnitude (MV)−0.27[5]
Details
Gyr
HIP 54539, HR 4335, PPM 52277, SAO 43629.[9]
Database references
SIMBADdata

Psi Ursae Majoris (Psi UMa, ψ Ursae Majoris, ψ UMa) is a

Chinese constellation
).

The

K-type star.[11]

Psi Ursae Majoris is a member of the

thin disk population of the Milky Way. It is following an orbit through the galaxy with a low eccentricity of 0.02 that will carry it between 26.5–27.8 kly (8.1–8.5 kpc) from the Galactic Center. The low inclination of its orbit means the star will only stray 130 ly (40 pc) from the galactic plane.[8]

References

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  9. ^ "psi UMa -- Star", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2012-01-16
  10. ^ Allen, Richard Hinckley (1963), Star Names — Their Lore and Meaning: Ursa Major (Dover ed.), University of Chicago
  11. ^ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on March 18, 2012, retrieved 2012-01-16