31 Boötis

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31 Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 14h 41m 38.7505s
Declination +08° 09′ 42.350″
Apparent magnitude (V) 4.865
Characteristics
Spectral type G7+IIIHdel -0.5
U−B color index 0.76
B−V color index 1.0
R−I color index 0.48
Variable type Variable star
Astrometry
Radial velocity (Rv) -22.1 km/s
Proper motion (μ) RA: -10.21 mas/yr
Dec.: 3.25 mas/yr
Parallax (π) 5.66 ± 0.82 mas
Distance approx. 580 ly
(approx. 180 pc)
Absolute magnitude (MV) -1.38
Details
Mass 1,1 M
Radius 1,1 R
Luminosity 1,2 L
Temperature 5,000–6,000 K
Rotation < 17 km/s
0,008981 Year
Other designations
HR 5480, HD 129312, BD+08°2903, FK5 3163, HIP 71832, SAO 120601, GC 19789.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

31 Boötis is a star in the constellation Boötes.

31 Boötis is a yellow G-type giant with an apparent magnitude of +4.86. It is approximately 576 light years from Earth.

References[edit]