# HD 127334

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Star in the constellation Boötes

HD 127334 Location of HD 127334 (circled) Observation data Epoch 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−V color index 1.010[3][5] J−H color index 0.258[6] J−K color index 0.369[6] Astrometry Radial velocity (Rv) −0.401±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 (23.390 ± 0.010 pc) Absolute magnitude (MV) +4.48[1] Details Mass 1.02±0.02,[8] 1.07[9] M☉ Radius 1.2[10] R☉ Luminosity 1.4[10] L☉ Surface gravity (log g) 4.37±0.13[11] cgs Temperature 5758±76,[11] 5635±50[8] K Metallicity [Fe/H] 0.24±0.06,[11] 0.19±0.04[8] dex Rotational velocity (v sin i) 7.1[12] km/s Age 8.6±1.3,[8] 10.5–10.7,[13] ~7.1[12] Gyr Other designations AG+42°1283, BD+42°2508, GC 19550, GJ 3852, HD 127334, HIP 70873, HR 5423, SAO 45075, PPM 54166, TIC 27525457, TYC 3039-237-1, 2MASS J14293678+4147456, Gaia DR2 1491593733326694912[6] Database references SIMBAD data

**HD 127334** is a solitary[9] [Sun](/source/Sun)-like star in the northern [constellation](/source/Constellation) of [Boötes](/source/Bo%C3%B6tes). With an [apparent magnitude](/source/Apparent_magnitude) of 6.36, it can be faintly seen by the naked eye from [Earth](/source/Earth) as a yellow-hued dot of light. As such, it is listed in the [Bright Star Catalogue](/source/Bright_Star_Catalogue) as **HR 5423**. It is located at a distance of 76.29 light-years (23.39 parsecs) according to [Gaia EDR3](/source/Gaia_EDR3) [parallax](/source/Stellar_parallax) measurements.

## Stellar properties

This is a [G-type main-sequence star](/source/G-type_main-sequence_star) much like the Sun, with a [spectral type](/source/Stellar_classification) of G5V CH0.3,[4] where the suffix notation indicates an anomalous overabundance of the [methylidyne radical](/source/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's [effective temperature](/source/Effective_temperature), for comparison, is 5,772 K (5,499 °C; 9,930 °F).[14]

The star belongs to the [thin disk](/source/Thin_disk) population of the [Milky Way](/source/Milky_Way)[13] and is thought to be ancient: its age estimate varies between publications, but generally lies between 7–11 [Gyr](/source/Billion_years), much older than the [Solar System](/source/Solar_System) (aged 4.568 Gyr[15]). Despite its old age, it is enriched in heavy elements, possessing a super-solar [metallicity](/source/Metallicity) of 0.24±0.06 or 0.19±0.04 dex.

It has a low or very low level of [surface activity](/source/Stellar_magnetic_field#Surface_activity), unlike some other similar stars such as [Toliman](/source/Toliman) (Alpha Centauri B).[3]

HD 127334 has been a long-term target of the [California Planet Search](/source/Lick%E2%80%93Carnegie_Exoplanet_Survey),[16] but no [exoplanets](/source/Exoplanet) have been discovered to orbit the star.[11]

## See also

- [Solar analog](/source/Solar_analog)

- [List of star systems within 75–80 light-years](/source/List_of_star_systems_within_75%E2%80%9380_light-years)

## References

1. ^ [***a***](#cite_ref-xhip_1-0) [***b***](#cite_ref-xhip_1-1) Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". *Astronomy Letters*. **38** (5): 331. [arXiv](/source/ArXiv_(identifier)):[1108.4971](https://arxiv.org/abs/1108.4971). [Bibcode](/source/Bibcode_(identifier)):[2012AstL...38..331A](https://ui.adsabs.harvard.edu/abs/2012AstL...38..331A). [doi](/source/Doi_(identifier)):[10.1134/S1063773712050015](https://doi.org/10.1134%2FS1063773712050015).

1. ^ [***a***](#cite_ref-DR3_2-0) [***b***](#cite_ref-DR3_2-1) [***c***](#cite_ref-DR3_2-2) [***d***](#cite_ref-DR3_2-3) [***e***](#cite_ref-DR3_2-4) Vallenari, A.; et al. (Gaia collaboration) (2023). ["*Gaia* Data Release 3. Summary of the content and survey properties"](https://doi.org/10.1051%2F0004-6361%2F202243940). *Astronomy and Astrophysics*. **674**: A1. [arXiv](/source/ArXiv_(identifier)):[2208.00211](https://arxiv.org/abs/2208.00211). [Bibcode](/source/Bibcode_(identifier)):[2023A&A...674A...1G](https://ui.adsabs.harvard.edu/abs/2023A&A...674A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202243940](https://doi.org/10.1051%2F0004-6361%2F202243940). [S2CID](/source/S2CID_(identifier)) [244398875](https://api.semanticscholar.org/CorpusID:244398875). [Gaia DR3 record for this source](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-source=+I%2F355&-from=nav&-nav=cat%3AI%2F355%26tab%3A%7BI%2F355%2Fgaiadr3%7D%26key%3Asource%3D1355%2Fgaiadr3%26HTTPPRM%3A%26-out.add%3D.%26Source%3D%3D%3D1491593733326694912%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-Rajpaul2020_3-0) [***b***](#cite_ref-Rajpaul2020_3-1) [***c***](#cite_ref-Rajpaul2020_3-2) Rajpaul, V M; et al. (1 March 2020). ["A robust, template-free approach to precise radial velocity extraction"](https://doi.org/10.1093%2Fmnras%2Fstz3599). *Monthly Notices of the Royal Astronomical Society*. **492** (3): 3960–3983. [arXiv](/source/ArXiv_(identifier)):[1912.09563](https://arxiv.org/abs/1912.09563). [doi](/source/Doi_(identifier)):[10.1093/mnras/stz3599](https://doi.org/10.1093%2Fmnras%2Fstz3599). [ISSN](/source/ISSN_(identifier)) [0035-8711](https://search.worldcat.org/issn/0035-8711).

1. ^ [***a***](#cite_ref-Gray2003_4-0) [***b***](#cite_ref-Gray2003_4-1) 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."](https://doi.org/10.1086%2F378365) *The Astronomical Journal*. **126** (4): 2048–2059. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0308182](https://arxiv.org/abs/astro-ph/0308182). [Bibcode](/source/Bibcode_(identifier)):[2003AJ....126.2048G](https://ui.adsabs.harvard.edu/abs/2003AJ....126.2048G). [doi](/source/Doi_(identifier)):[10.1086/378365](https://doi.org/10.1086%2F378365). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-Oja1991_5-0)** Oja, T. (August 1991). "UBV photometry of stars whose positions are accurately known. VI". *Astronomy & Astrophysics Supplement Series*. **89**: 415. [Bibcode](/source/Bibcode_(identifier)):[1991A&AS...89..415O](https://ui.adsabs.harvard.edu/abs/1991A&AS...89..415O).

1. ^ [***a***](#cite_ref-simbad_6-0) [***b***](#cite_ref-simbad_6-1) [***c***](#cite_ref-simbad_6-2) ["HD 127334"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+127334). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 15 November 2024.

1. **[^](#cite_ref-Soubiran2018_7-0)** Soubiran, C.; et al. (2018). ["Gaia Data Release 2: The catalogue of radial velocity standard stars"](https://doi.org/10.1051%2F0004-6361%2F201832795). *Astronomy & Astrophysics*. **616**: A7. [arXiv](/source/ArXiv_(identifier)):[1804.09370](https://arxiv.org/abs/1804.09370). [Bibcode](/source/Bibcode_(identifier)):[2018A&A...616A...7S](https://ui.adsabs.harvard.edu/abs/2018A&A...616A...7S). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201832795](https://doi.org/10.1051%2F0004-6361%2F201832795). [ISSN](/source/ISSN_(identifier)) [0004-6361](https://search.worldcat.org/issn/0004-6361).

1. ^ [***a***](#cite_ref-Gonzalez2015_8-0) [***b***](#cite_ref-Gonzalez2015_8-1) [***c***](#cite_ref-Gonzalez2015_8-2) [***d***](#cite_ref-Gonzalez2015_8-3) Gonzalez, G. (1 January 2015). ["Parent stars of extrasolar planets – XIV. Strong evidence of Li abundance deficit"](https://doi.org/10.1093%2Fmnras%2Fstu2156). *Monthly Notices of the Royal Astronomical Society*. **446** (1): 1020–1025. [arXiv](/source/ArXiv_(identifier)):[1410.4108](https://arxiv.org/abs/1410.4108). [doi](/source/Doi_(identifier)):[10.1093/mnras/stu2156](https://doi.org/10.1093%2Fmnras%2Fstu2156). [ISSN](/source/ISSN_(identifier)) [1365-2966](https://search.worldcat.org/issn/1365-2966).

1. ^ [***a***](#cite_ref-Fuhrmann2017_9-0) [***b***](#cite_ref-Fuhrmann2017_9-1) Fuhrmann, K.; et al. (10 February 2017). ["Multiplicity among Solar-type Stars"](https://doi.org/10.3847%2F1538-4357%2F836%2F1%2F139). *The Astrophysical Journal*. **836** (1): 139. [Bibcode](/source/Bibcode_(identifier)):[2017ApJ...836..139F](https://ui.adsabs.harvard.edu/abs/2017ApJ...836..139F). [doi](/source/Doi_(identifier)):[10.3847/1538-4357/836/1/139](https://doi.org/10.3847%2F1538-4357%2F836%2F1%2F139). [ISSN](/source/ISSN_(identifier)) [0004-637X](https://search.worldcat.org/issn/0004-637X).

1. ^ [***a***](#cite_ref-tic_10-0) [***b***](#cite_ref-tic_10-1) Stassun, Keivan G.; et al. (2019). ["The Revised TESS Input Catalog and Candidate Target List"](https://doi.org/10.3847%2F1538-3881%2Fab3467). *The Astronomical Journal*. **158** (4): 138. [arXiv](/source/ArXiv_(identifier)):[1905.10694](https://arxiv.org/abs/1905.10694). [Bibcode](/source/Bibcode_(identifier)):[2019AJ....158..138S](https://ui.adsabs.harvard.edu/abs/2019AJ....158..138S). [doi](/source/Doi_(identifier)):[10.3847/1538-3881/ab3467](https://doi.org/10.3847%2F1538-3881%2Fab3467).

1. ^ [***a***](#cite_ref-Lienhard2022_11-0) [***b***](#cite_ref-Lienhard2022_11-1) [***c***](#cite_ref-Lienhard2022_11-2) [***d***](#cite_ref-Lienhard2022_11-3) 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"](https://doi.org/10.1093%2Fmnras%2Fstac1098). *Monthly Notices of the Royal Astronomical Society*. **513** (4): 5328–5343. [arXiv](/source/ArXiv_(identifier)):[2204.13556](https://arxiv.org/abs/2204.13556). [doi](/source/Doi_(identifier)):[10.1093/mnras/stac1098](https://doi.org/10.1093%2Fmnras%2Fstac1098). [ISSN](/source/ISSN_(identifier)) [0035-8711](https://search.worldcat.org/issn/0035-8711).

1. ^ [***a***](#cite_ref-deAndres2024_12-0) [***b***](#cite_ref-deAndres2024_12-1) 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"](https://doi.org/10.1051%2F0004-6361%2F202346744). *Astronomy & Astrophysics*. **684**: A28. [arXiv](/source/ArXiv_(identifier)):[2402.01315](https://arxiv.org/abs/2402.01315). [Bibcode](/source/Bibcode_(identifier)):[2024A&A...684A..28L](https://ui.adsabs.harvard.edu/abs/2024A&A...684A..28L). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202346744](https://doi.org/10.1051%2F0004-6361%2F202346744). [ISSN](/source/ISSN_(identifier)) [0004-6361](https://search.worldcat.org/issn/0004-6361).

1. ^ [***a***](#cite_ref-Zenoviene2015_13-0) [***b***](#cite_ref-Zenoviene2015_13-1) 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"](https://doi.org/10.1051%2F0004-6361%2F201425088). *Astronomy & Astrophysics*. **576**: A113. [arXiv](/source/ArXiv_(identifier)):[1501.06401](https://arxiv.org/abs/1501.06401). [Bibcode](/source/Bibcode_(identifier)):[2015A&A...576A.113Z](https://ui.adsabs.harvard.edu/abs/2015A&A...576A.113Z). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201425088](https://doi.org/10.1051%2F0004-6361%2F201425088). [ISSN](/source/ISSN_(identifier)) [0004-6361](https://search.worldcat.org/issn/0004-6361).

1. **[^](#cite_ref-Prsa2016_14-0)** Prša, Andrej; Harmanec, Petr; Torres, Guillermo; et al. (1 August 2016). ["NOMINAL VALUES FOR SELECTED SOLAR AND PLANETARY QUANTITIES: IAU 2015 RESOLUTION B3 * †"](https://doi.org/10.3847%2F0004-6256%2F152%2F2%2F41). *The Astronomical Journal*. **152** (2): 41. [arXiv](/source/ArXiv_(identifier)):[1510.07674](https://arxiv.org/abs/1510.07674). [doi](/source/Doi_(identifier)):[10.3847/0004-6256/152/2/41](https://doi.org/10.3847%2F0004-6256%2F152%2F2%2F41). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-Bouvier2010_15-0)** Bouvier, A.; [Wadhwa, M.](/source/Meenakshi_Wadhwa) (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](/source/Bibcode_(identifier)):[2010NatGe...3..637B](https://ui.adsabs.harvard.edu/abs/2010NatGe...3..637B). [doi](/source/Doi_(identifier)):[10.1038/NGEO941](https://doi.org/10.1038%2FNGEO941). [S2CID](/source/S2CID_(identifier)) [56092512](https://api.semanticscholar.org/CorpusID:56092512).

1. **[^](#cite_ref-Johnson2009_16-0)** 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"](https://doi.org/10.1086%2F644604). *Publications of the Astronomical Society of the Pacific*. **121** (884): 1104–1111. [arXiv](/source/ArXiv_(identifier)):[0907.5204](https://arxiv.org/abs/0907.5204). [Bibcode](/source/Bibcode_(identifier)):[2009PASP..121.1104J](https://ui.adsabs.harvard.edu/abs/2009PASP..121.1104J). [doi](/source/Doi_(identifier)):[10.1086/644604](https://doi.org/10.1086%2F644604). [ISSN](/source/ISSN_(identifier)) [0004-6280](https://search.worldcat.org/issn/0004-6280).

v t e Constellation of Boötes Boötes in Chinese astronomy Boötes Void List of stars in Boötes Stars Bayer α (Arcturus) β (Nekkar) γ (Seginus) δ (Qigong) ε (Izar, Pulcherrima) ζ η (Muphrid) θ ι κ λ (Xuange) μ1 (Alkalurops) μ2 ν1 ν2 ξ ο π ρ (Kalasungsang) σ (Genghe) τ (Tepiamenit) υ φ χ ψ ω Flamsteed 1 2 3 6 (e) 7 9 10 11 12 (d) 13 14 15 18 20 22 (f) 24 (g) 26 31 32 33 34 (Alrumh) 38 (Merga) 39 40 44 (Quadrans) 45 (c) 46 (b) 47 (k) 50 Variable R S T RX ZZ AB BL BP BX BY CE CH CI CN CP CR CX CY (101 Vir) DE EK HN HP HD 118508 118889 122563 125040 125351 (A) 125658 126128 126129 126141 126200 126271 127304 127334 127726 128093 128198 129132 129357 130084 130603 130917 131040 131473 131496 (Arcalís) 132029 132406 132563 134064 134335 135438 135530 135944 141399 Other 2MASS J15031961+2525196 CFBDSIR 1458+10 Gliese 526 HAT-P-4 LHS 2924 PSR J1544+4937 SDSS J1416+1348 SDSS J1433+1011 TVLM 513-46546 WASP-14 WD 1425+540 ZTF J153932.16+502738.8 Exoplanets HAT-P-4b HD 128311 b c HD 132406 b HD 136418 b (Awasis) τ Boötis b TOI-1853 b WASP-14b Star clusters NGC 5466 Galaxies NGC 5008 5248 5251 5416 5490 5500 5504 5508 5514 5523 5529 5532 5533 5535 5539 5541 5544 5545 5548 5557 5559 5562 5579 5582 5591 5601 5603 5609 5613 5614 5615 5624 5629 5630 5641 5642 5653 5665 5676 5681 5682 5683 5698 5714 5722 5752 5753 5754 5755 5772 5778 5784 5790 5820 5821 5829 5837 5857 5875 5876 5886 5888 5896 5929 5930 5966 Numbered I II III Other 3C 295 3C 299 3C 300 3C 303 3C 315 4C 19.44 4C +26.42 7C 1354+2552 Abell 2009 BCG Arp 302 B2 1420+32 B2 1441+26 CEERS-2112 CEERS-93316 CEERS2-588 CLASS B1359+154 Cloverleaf quasar DDO 190 EGS-zs8-1 EGS-z11-R0 EGSY8p7 H1426+428 IC 4397 IC 4461 IC 4462 IC 4481 IC 4516 IRAS 13349+2438 IRAS 14394+5332 IRAS 15206+3342 LEDA 2108986 MACS 1423-z7p64 MACS J1447.4+0827 BCG Maisie's Galaxy Markarian 463 Markarian 471 Markarian 478 MS 1455.0+2232 BCG MS 1512-cB58 NVSS J141343+433945 OQ 172 OQ 530 PG 1411+442 PG 1543+489 PGC 93125 PGC 1470080 PKS 1345+125 PKS 1413+135 QSO B1422+202 RBS 1467 RGZ J145001.5+144747 RGZ J145039.8+441829 SBS 1415+437 SDSS J135646.10+102609.0 SDSS J1430+2303 Teacup galaxy UGC 8669 UGC 9128 UGC 9425 UGC 9684 UGC 9796 ULAS J1342+0928 VV 191 Galaxy clusters Abell 1795 Abell 1991 BoRG-58 IDCS J1426.5+3508 Astronomical events GRB 990123 GRB 080319B SCP 06F6 SN 2003fg SN 2005bc SN 2020tlf Category

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