31 Boötis
31 Boötis
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
Constellation | Boötes |
Right ascension | 14h 41m 38.7505s |
Declination | +08° 09′ 42.350″ |
Apparent magnitude (V) | 4.865 |
| Characteristics | |
Spectral type | G7+IIIHdel -0.5 |
| U−B color index | 0.76 |
| B−V color index | 1.0 |
| R−I color index | 0.48 |
Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | -22.1 km/s |
| Proper motion (μ) | RA: -10.21 mas/yr Dec.: 3.25 mas/yr |
| Parallax (π) | 5.66 ± 0.82 mas |
| Distance | approx. 580 ly (approx. 180 pc) |
| Absolute magnitude (MV) | -1.38 |
| Details | |
| Mass | 1,1 M☉ |
| Radius | 1,1 R☉ |
| Luminosity | 1,2 L☉ |
| Temperature | 5,000–6,000 K |
| Rotation | < 17 km/s 0,008981 Year |
| Other designations | |
HR 5480, HD 129312, BD+08°2903, FK5 3163, HIP 71832, SAO 120601, GC 19789. | |
| Database references | |
| SIMBAD | data |
31 Boötis is a star in the constellation Boötes.
31 Boötis is a yellow G-type giant with an apparent magnitude of +4.86. It is approximately 576 light years from Earth.[1]
References[edit]
^ "31 Bootis, HD129312, HIP71832, HR5480 - Universe Guide". universeguide.com. Retrieved 28 October 2018..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}
- HR 5480
- Image 31 Boötis
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Categories:
- Henry Draper Catalogue objects
- Hipparcos objects
- G-type giants
- Flamsteed objects
- Boötes
- HR objects
- Durchmusterung objects
- Variable star stubs
- Giant-star stubs
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