Star in the constellation Boötes
HD 127334 Location of HD 127334 (circled)
Observation dataEpoch J2000.0 Equinox J2000.0 Constellation Boötes [ 1] Right ascension 14h 29m 36.80877s [ 2] Declination +41° 47′ 45.2854″[ 2] Apparent magnitude (V)6.36[ 3] Characteristics Spectral type G5V CH0.3[ 4] B−Vcolor index 1.010[ 3] [ 5] J−Hcolor index 0.258[ 6] J−Kcolor index 0.369[ 6] Astrometry Radial velocity (Rv )± 0.0007[ 7] km/s Proper motion (μ)RA: 161.373[ 2] mas /yr Dec.: −220.361[ 2] mas /yr Parallax (π)42.7526± 0.0174 mas [ 2] Distance 76.29 ± 0.03 ly pc ) Absolute magnitude (MV )+4.48[ 1] Details Mass ± 0.02[ 8] [ 9] M ☉ Radius 1.2[ 10] R ☉ Luminosity 1.4[ 10] L ☉ Surface gravity (log g )± 0.13[ 11] cgs Temperature ± 76[ 11] ± 50[ 8] K Metallicity [Fe/H] ± 0.06[ 11] ± 0.04[ 8] dex Rotational velocity (v sin i )7.1[ 12] Age ± 1.3[ 8] [ 13] [ 12] Gyr Other designations AG +42°1283BD +42°2508Gaia DR2 1491593733326694912GC 19550GJ 3852HD 127334HIP 70873HR 5423SAO 45075PPM 54166TIC 27525457TYC 3039-237-12MASS J14293678+4147456[ 6] Database references SIMBAD data
HD 127334 is a solitary[ 9] Sun -like star in the northernconstellation ofBoötes . With anapparent magnitude of 6.36, it can be faintly seen by the naked eye fromEarth as a yellow-hued dot of light. As such, it is listed in theBright Star Catalogue asHR 5423 . It is located at a distance of 76.29 light-years (23.39 parsecs) according toGaia EDR3 parallax measurements.
This is aG-type main-sequence star much like the Sun, with aspectral type of G5V CH0.3,[ 4] methylidyne radical . It is slightly more massive than the Sun but marginally cooler at 5,758 K (5,485 °C; 9,905 °F) or 5,635 K (5,362 °C; 9,683 °F). The Sun'seffective temperature , for comparison, is 5,772 K (5,499 °C; 9,930 °F).[ 14]
The star belongs to thethin disk population of theMilky Way [ 13] Gyr , much older than theSolar System (aged 4.568 Gyr[ 15] metallicity of± 0.06± 0.04 dex
It has a low or very low level ofsurface activity , unlike some other similar stars such asToliman (Alpha Centauri B).[ 3]
HD 127334 has been a long-term target of theCalifornia Planet Search ,[ 16] exoplanets have been discovered to orbit the star.[ 11]
^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 . ^a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties" .Astronomy and Astrophysics .674 : A1.arXiv :2208.00211 Bibcode :2023A&A...674A...1G .doi :10.1051/0004-6361/202243940 S2CID 244398875 . Gaia DR3 record for this source atVizieR .^a b c Rajpaul, V M; et al. (1 March 2020)."A robust, template-free approach to precise radial velocity extraction" .Monthly Notices of the Royal Astronomical Society .492 (3):3960– 3983.arXiv :1912.09563 doi :10.1093/mnras/stz3599 ISSN 0035-8711 . ^a b Gray, R. O.; et al. (2003)."Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I." The Astronomical Journal .126 (4):2048– 2059.arXiv :astro-ph/0308182 Bibcode :2003AJ....126.2048G .doi :10.1086/378365 ISSN 0004-6256 . ^ Oja, T. (August 1991). "UBV photometry of stars whose positions are accurately known. VI".Astronomy & Astrophysics Supplement Series .89 : 415.Bibcode :1991A&AS...89..415O . ^a b c "HD 127334" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved15 November 2024 .^ Soubiran, C.; et al. (2018)."Gaia Data Release 2: The catalogue of radial velocity standard stars" .Astronomy & Astrophysics .616 : A7.arXiv :1804.09370 Bibcode :2018A&A...616A...7S .doi :10.1051/0004-6361/201832795 ISSN 0004-6361 . ^a b c d Gonzalez, G. (1 January 2015)."Parent stars of extrasolar planets – XIV. Strong evidence of Li abundance deficit" .Monthly Notices of the Royal Astronomical Society .446 (1):1020– 1025.arXiv :1410.4108 doi :10.1093/mnras/stu2156 ISSN 1365-2966 . ^a b Fuhrmann, K.; et al. (10 February 2017)."Multiplicity among Solar-type Stars" .The Astrophysical Journal .836 (1): 139.Bibcode :2017ApJ...836..139F .doi :10.3847/1538-4357/836/1/139 ISSN 0004-637X . ^a b Stassun, Keivan G.; et al. (2019)."The Revised TESS Input Catalog and Candidate Target List" .The Astronomical Journal .158 (4): 138.arXiv :1905.10694 Bibcode :2019AJ....158..138S .doi :10.3847/1538-3881/ab3467 ^a b c d Lienhard, F; Mortier, A; Buchhave, L; Collier Cameron, A; López-Morales, M; Sozzetti, A; Watson, C A; Cosentino, R (26 May 2022)."Multi-mask least-squares deconvolution: extracting RVs using tailored masks" .Monthly Notices of the Royal Astronomical Society .513 (4):5328– 5343.arXiv :2204.13556 doi :10.1093/mnras/stac1098 ISSN 0035-8711 . ^a b de Andrés, F. Llorente; de la Reza, R.; Cruz, P.; Cuenda-Muñoz, D.; Alfaro, E. J.; Chavero, C.; Cifuentes, C. (2024)."The evolution of lithium in FGK dwarf stars: Influence of planets and Galactic migration" .Astronomy & Astrophysics .684 : A28.arXiv :2402.01315 Bibcode :2024A&A...684A..28L .doi :10.1051/0004-6361/202346744 ISSN 0004-6361 . ^a b Ženovienė, R.; Tautvaišienė, G.; Nordström, B.; Stonkutė, E.; Barisevičius, G. (2015)."Stellar substructures in the solar neighbourhood: IV. Kinematic Group 1 in the Geneva-Copenhagen survey" .Astronomy & Astrophysics .576 : A113.arXiv :1501.06401 Bibcode :2015A&A...576A.113Z .doi :10.1051/0004-6361/201425088 ISSN 0004-6361 . ^ Prša, Andrej; Harmanec, Petr; Torres, Guillermo; et al. (1 August 2016)."NOMINAL VALUES FOR SELECTED SOLAR AND PLANETARY QUANTITIES: IAU 2015 RESOLUTION B3 * †" .The Astronomical Journal .152 (2): 41.arXiv :1510.07674 doi :10.3847/0004-6256/152/2/41 ISSN 0004-6256 . ^ Bouvier, A.;Wadhwa, M. (2010). "The age of the Solar System redefined by the oldest Pb–Pb age of a meteoritic inclusion".Nature Geoscience .3 (9):637– 641.Bibcode :2010NatGe...3..637B .doi :10.1038/NGEO941 .S2CID 56092512 . ^ Johnson, John Asher; Winn, Joshua N.; Albrecht, Simon; Howard, Andrew W.; Marcy, Geoffrey W.; Gazak, J. Zachary (2009)."A Third Exoplanetary System with Misaligned Orbital and Stellar Spin Axes" .Publications of the Astronomical Society of the Pacific .121 (884):1104– 1111.arXiv :0907.5204 Bibcode :2009PASP..121.1104J .doi :10.1086/644604 ISSN 0004-6280 .
