S Boötis

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S Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension  14h 22m 52.92477s[1]
Declination +53° 48′ 37.3240″[1]
Apparent magnitude (V) 9.30[1]
Spectral type M5-6e[1]
B−V color index 1.35[1]
Variable type Mira variable[2]
Radial velocity (Rv)-17.00[1] km/s
Proper motion (μ) RA: 6.08[1] mas/yr
Dec.: -11.15[1] mas/yr
Parallax (π)1.47 ± 1.29[1] mas
Distanceapprox. 2,000 ly
(approx. 700 pc)
Other designations
HIP 70291, SAO 29125, BD+54° 1571, HD 126289.
Database references

S Boötis is a Mira variable in the constellation Boötes. It ranges between magnitudes 7.8 and 13.8 over a period of approximately 270 days.[2]


  1. ^ a b c d e f g h i "S Bootis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 28 September 2014.
  2. ^ a b VSX (4 January 2010). "S Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 28 September 2014.