HD 134335
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 15h 08m 35.56370s[1] |
| Declination | +25° 06′ 31.0833″[1] |
| Apparent magnitude (V) | 5.9781±0.0007[2] |
| Characteristics | |
| Spectral type | K1III[3] |
| B−V color index | 1.24[3] |
| Astrometry | |
| Radial velocity (Rv) | −18.17±0.23[2] km/s |
| Proper motion (μ) | RA: −3.759 mas/yr[1] Dec.: −0.806 mas/yr[1] |
| Parallax (π) | 6.8281 ± 0.038 mas[1] |
| Distance | 478 ± 3 ly (146.5 ± 0.8 pc) |
| Absolute magnitude (MV) | 0.05[4] |
| Details | |
| Luminosity | 126.6[5] L☉ |
| Temperature | 4,409[5] K |
| Rotational velocity (v sin i) | 1.1[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 134335 is a giant star in the northern constellation of Boötes. As a sixth magnitude star,[2] it is dimly visible to the naked eye under favorable viewing conditions. It is located at a distance of approximately 478 light years based on parallax measurements,[1] and is drifting closer with a heliocentric radial velocity of −18 km/s.[2] It may approach as close as 37.3 ly (11.43 pc) in about 7.6 million years.[4]
The stellar classification of HD 134335 is K1III,[3] matching a K-type giant star that has exhausted the supply of hydrogen at its core and expanded. It is radiating 127 times the luminosity of the Sun from its photosphere at an effective temperature of 4,409 K.[5]
References
[edit]- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ a b c d Famaey, B.; et al. (2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272, S2CID 17804304.
- ^ a b c d De Medeiros, J. R.; Mayor, M. (1999), "A catalog of rotational and radial velocities for evolved stars", Astronomy and Astrophysics Supplement Series, 139 (3): 433, arXiv:astro-ph/0608248, Bibcode:1999A&AS..139..433D, doi:10.1051/aas:1999401.
- ^ a b Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
- ^ a b c McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352.
- ^ "HD 134335". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-11-12.
External links
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