34 Boötis
34 Boötis
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
Constellation | Boötes |
Right ascension | 14h 43m 25.3632s |
Declination | +26° 31′ 40.261″ |
Apparent magnitude (V) | 4.827 |
| Characteristics | |
Spectral type | M3III |
| U−B color index | 1.94 |
| B−V color index | 1.66 |
| R−I color index | 1.22 |
Variable type | Semi-regular |
| Astrometry | |
| Radial velocity (Rv) | 5.6 km/s |
| Proper motion (μ) | RA: -13.29 mas/yr Dec.: -16.68 mas/yr |
| Parallax (π) | 3.67 ± 0.94 mas |
| Distance | approx. 900 ly (approx. 270 pc) |
| Absolute magnitude (MV) | -2.5 |
| Details[citation needed] | |
| Mass | 4.4 M☉ |
| Radius | 110 R☉ |
| Luminosity | 830 L☉ |
| Temperature | 3300 K |
| Other designations | |
W Boötis, HR 5490, HD 129712, FK5 1383, HIP 71995, SAO 83488, BD+27° 2413, GC 19831. | |
| Database references | |
| SIMBAD | data |
34 Boötis or W Boötis is a star in the constellation Boötes.
34 Boötis is a M-type red giant with a mean apparent magnitude of +4.80. It is approximately 890 light years from Earth. It is classified as a semiregular variable star and its brightness varies from magnitude +4.73 to +5.4 with a period of 450 days.[1]
References[edit]
^ "34 Bootis, HD129712, HIP71995, HR5490 - 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 5490
- Image 34 Boötis
External links[edit]
- Data on SIMBAD online
 | This giant-star-related article is a stub. You can help Wikipedia by expanding it. |
 | This variable star–related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Henry Draper Catalogue objects
- Hipparcos objects
- Flamsteed objects
- Boötes
- M-type giants
- Semiregular variable stars
- HR objects
- Durchmusterung objects
- Objects with variable star designations
- Giant-star stubs
- Variable star stubs
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