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]
| 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 |
| Distance | approx. 2,000 ly (approx. 700 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
- "S Bootis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 28 September 2014.
- VSX (4 January 2010). "S Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 28 September 2014.
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