S Boötis

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]

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]
Characteristics
Spectral type M5-6e[1]
B−V color index 1.35[1]
Variable type Mira variable[2]
Astrometry
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
SIMBADdata

References

  1. "S Bootis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 28 September 2014.
  2. VSX (4 January 2010). "S Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 28 September 2014.


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