# HD 143009

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Star in the constellation of Lupus

HD 143009 Observation data Epoch J2000 Equinox J2000 Constellation Lupus Right ascension 15h 59m 30.26689s[1] Declination −41° 44′ 39.9869″[1] Apparent magnitude (V) 4.99[2] Characteristics Spectral type K0 II-III[3] B−V color index 0.988±0.002[2] Astrometry Radial velocity (Rv) −27.0±2.8[2] km/s Proper motion (μ) RA: −37.658[1] mas/yr Dec.: −16.707[1] mas/yr Parallax (π) 8.5885±0.3110 mas[1] Distance 380 ± 10 ly (116 ± 4 pc) Absolute magnitude (MV) −0.64[2] Details Radius 16.83+0.16 −0.27[1] R☉ Luminosity 152.3+6.2 −6.3[1] L☉ Surface gravity (log g) 2.26[4] cgs Temperature 4,942+40 −23[1] K Metallicity [Fe/H] 0.07[4] dex Other designations e Lup, CD−41° 10478, FK5 1418, HD 143009, HIP 78323, HR 5943, SAO 226425[5] Database references SIMBAD data

**HD 143009** is a single[6] [star](/source/Star) in the southern [constellation](/source/Constellation) of [Lupus](/source/Lupus_(constellation)). It has an orange hue and is visible to the naked eye with an [apparent visual magnitude](/source/Apparent_visual_magnitude) of 4.99.[2] The star lies at a distance of approximately 380 [light years](/source/Light_year) from the [Sun](/source/Sun) based on [parallax](/source/Stellar_parallax),[1] but is drifting closer with a [radial velocity](/source/Radial_velocity) of −27 km/s.[2] It has an [absolute magnitude](/source/Absolute_magnitude) of −0.64.[2]

This is an [evolved](/source/Stellar_evolution) [K-type star](/source/K-type_star) with a [stellar classification](/source/Stellar_classification) of K0 II-III,[3] displaying a [luminosity class](/source/Luminosity_class) with mixed traits of a [bright giant](/source/Bright_giant) (II) and a [giant star](/source/Giant_star) (III). With the supply of hydrogen at its [core](/source/Stellar_core) exhausted, the star has expanded to 16.8 times the [radius of the Sun](/source/Radius_of_the_Sun). It is radiating 152 times the [Sun's luminosity](/source/Sun's_luminosity) from its enlarged [photosphere](/source/Photosphere) at an [effective temperature](/source/Effective_temperature) of 4,942 K.[1]

## References

1. ^ [***a***](#cite_ref-GaiaDR2_1-0) [***b***](#cite_ref-GaiaDR2_1-1) [***c***](#cite_ref-GaiaDR2_1-2) [***d***](#cite_ref-GaiaDR2_1-3) [***e***](#cite_ref-GaiaDR2_1-4) [***f***](#cite_ref-GaiaDR2_1-5) [***g***](#cite_ref-GaiaDR2_1-6) [***h***](#cite_ref-GaiaDR2_1-7) [***i***](#cite_ref-GaiaDR2_1-8) [***j***](#cite_ref-GaiaDR2_1-9) [Brown, A. G. A.](/source/Anthony_Brown_(scientist)); et al. ([Gaia collaboration](/source/Data_Processing_and_Analysis_Consortium)) (August 2018). ["*Gaia* Data Release 2: Summary of the contents and survey properties"](https://doi.org/10.1051%2F0004-6361%2F201833051). *[Astronomy & Astrophysics](/source/Astronomy_%26_Astrophysics)*. **616**. A1. [arXiv](/source/ArXiv_(identifier)):[1804.09365](https://arxiv.org/abs/1804.09365). [Bibcode](/source/Bibcode_(identifier)):[2018A&A...616A...1G](https://ui.adsabs.harvard.edu/abs/2018A&A...616A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201833051](https://doi.org/10.1051%2F0004-6361%2F201833051). [Gaia DR2 record for this source](https://vizier.u-strasbg.fr/viz-bin/VizieR-S?Gaia%20DR2%205995194597664539776) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-Anderson2012_2-0) [***b***](#cite_ref-Anderson2012_2-1) [***c***](#cite_ref-Anderson2012_2-2) [***d***](#cite_ref-Anderson2012_2-3) [***e***](#cite_ref-Anderson2012_2-4) [***f***](#cite_ref-Anderson2012_2-5) [***g***](#cite_ref-Anderson2012_2-6) 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), [S2CID](/source/S2CID_(identifier)) [119257644](https://api.semanticscholar.org/CorpusID:119257644).

1. ^ [***a***](#cite_ref-houk1978_3-0) [***b***](#cite_ref-houk1978_3-1) Houk, Nancy (1978), *Michigan catalogue of two-dimensional spectral types for the HD stars*, vol. 2, Ann Arbor: Dept. of Astronomy, University of Michigan, [Bibcode](/source/Bibcode_(identifier)):[1978mcts.book.....H](https://ui.adsabs.harvard.edu/abs/1978mcts.book.....H).

1. ^ [***a***](#cite_ref-Luck2014_4-0) [***b***](#cite_ref-Luck2014_4-1) Earle Luck, R. (2014), "Parameters and Abundances in Luminous Stars", *The Astronomical Journal*, **147** (6): 137, [Bibcode](/source/Bibcode_(identifier)):[2014AJ....147..137L](https://ui.adsabs.harvard.edu/abs/2014AJ....147..137L), [doi](/source/Doi_(identifier)):[10.1088/0004-6256/147/6/137](https://doi.org/10.1088%2F0004-6256%2F147%2F6%2F137).

1. **[^](#cite_ref-SIMBAD_5-0)** ["HD 143009"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+143009). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 2018-07-28.

1. **[^](#cite_ref-Eggleton2008_6-0)** Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", *Monthly Notices of the Royal Astronomical Society*, **389** (2): 869, [arXiv](/source/ArXiv_(identifier)):[0806.2878](https://arxiv.org/abs/0806.2878), [Bibcode](/source/Bibcode_(identifier)):[2008MNRAS.389..869E](https://ui.adsabs.harvard.edu/abs/2008MNRAS.389..869E), [doi](/source/Doi_(identifier)):[10.1111/j.1365-2966.2008.13596.x](https://doi.org/10.1111%2Fj.1365-2966.2008.13596.x), [S2CID](/source/S2CID_(identifier)) [14878976](https://api.semanticscholar.org/CorpusID:14878976).

v t e Constellation of Lupus List of stars in Lupus Lupus in Chinese astronomy Stars Bayer α (Uridim) β γ δ ε ζ η θ ι κ λ μ ν1 ν2 ξ ο π ρ σ τ1 τ2 υ φ1 φ2 χ ψ1 ψ2 ω Flamsteed 1 (i) 2 (f) Variable RU EX GG GQ HR II IL IM KT (d) V407 V462 HR 5362 5364 5401 5651 (e) 5724 (k) 5825 (g) 5943 5967 HD 134004 135344 136164 141943 142527 143811 Other Gliese 588 HIP 70849 Lupus-TR-3 SSSPM J1549−3544 WASP-132 Exoplanets GQ Lupi b HIP 70849 b Lupus-TR-3b WASP-178b Star clusters NGC 5749 NGC 5822 NGC 5824 NGC 5927 NGC 5986 Nebulae IC 4406 NGC 5882 Galaxies IC 4444 NGC 5530 NGC 5643 Astronomical events SN 1006 Category

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