R Boötis
R Boötis
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Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Boötes |
Right ascension | 14h 37m 11.5766s[1] |
Declination | 26° 44′ 11.681″[1] |
Apparent magnitude (V) | 6.20[1] |
Characteristics | |
Spectral type | M4-8e[1] |
B−V color index | 3.57[1] |
Variable type | Mira variable[2] |
Astrometry | |
Radial velocity (Rv) | -58.00[1] km/s |
Proper motion (μ) | RA: -25.59[1] mas/yr Dec.: 14.36[1] mas/yr |
Parallax (π) | -1.34 ± 1.49[1] mas |
Other designations | |
HIP 71490, SAO 83440, BD+27° 2400, HD 128609. | |
Database references | |
SIMBAD | data |
R Boötis is a Mira variable in the constellation Boötes. It ranges between magnitudes 6.2 and 13.1 over a period of approximately 223 days.[2]
References[edit]
^ abcdefghi "R Canum Venaticorum". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 26 June 2014..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
^ ab VSX (4 January 2010). "R Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 26 June 2014.
Coordinates: 14h 37m 11.5787s, +26° 44′ 11.663″
This variable star–related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Boötes
- Mira variables
- Henry Draper Catalogue objects
- M-type giants
- Hipparcos objects
- Objects with variable star designations
- Durchmusterung objects
- Emission-line stars
- Variable star stubs
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