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 mas[1] |
Distance | approx. 2,000 ly (approx. 700 pc) |
Other designations | |
Database references | |
SIMBAD | data |
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]
References
- ^ a b c d e f g h i "S Bootis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 28 September 2014.
- ^ a b VSX (4 January 2010). "S Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 28 September 2014.