BX Boötis

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BX Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 15h 00m 38.7182s
Declination +47° 16′ 38.793″
Apparent magnitude (V) 6.348
Characteristics
Spectral type B9pSiSrCr[1]
U−B color index -0.27
B−V color index -0.14
Variable type Alpha² Canum Venaticorum variable
Astrometry
Radial velocity (Rv) -10.70 km/s
Proper motion (μ) RA: -8.42 mas/yr
Dec.: 16.00 mas/yr
Parallax (π) 5.89 ± 0.28 mas
Distance 550 ± 30 ly
(170 ± 8 pc)
Absolute magnitude (MV) 0.20
Other designations
CSV 7162, SAO 45326, HIP 73454, HR 5597, BD+47° 2192, HD 133029.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)
Database references
SIMBAD data

BP Boötis is a Alpha² Canum Venaticorum variable star in the constellation Boötes. It varies from magnitude 6.33 to 6.41 over 2.9 days.[1]

References[edit]

  1. ^ a b Watson, Christopher (4 January 2010). "BX Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 5 August 2014.