# HD 113337

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Binary star system in the constellation Draco

HD 113337 Observation data Epoch J2000 Equinox J2000 Constellation Draco[1] Right ascension 13h 01m 46.9269s[2] Declination 63° 36′ 36.796″[2] Apparent magnitude (V) 6.03[3] Characteristics Spectral type F6V+M3.5V+M3.5V[4] Astrometry A Radial velocity (Rv) −14.93±0.13[2] km/s Proper motion (μ) RA: −173.342±0.035 mas/yr[2] Dec.: 24.850±0.027 mas/yr[2] Parallax (π) 27.6253±0.0253 mas[2] Distance 118.1 ± 0.1 ly (36.20 ± 0.03 pc) Absolute magnitude (MV) +3.18[1] Orbit Primary HD 113337 Name LSPM J1301+6337 Semi-major axis (a) 119″ (4310 AU)″ Details[5] HD 113337 Mass 1.48±0.08 M☉ Radius 1.50±0.04 R☉ Luminosity 4.29±0.25 L☉ Surface gravity (log g) 4.21±0.08 cgs Temperature 6774±125 K Metallicity 0.07±0.02 Rotational velocity (v sin i) 1.82±0.07[6] km/s Age 15+6 −1 Myr LSPM J1301+6337 Mass 0.245*2 M☉ Other designations BD+64 927, HD 113337, HIP 63584, HR 4934, TYC 4166-541-1, 2MASS J13014695+6336368, Gaia DR2 1676282377934772608[7] Database references SIMBAD data

**HD 113337** (LDS 2662 A) is the primary component of [binary star](/source/Binary_star) system LDS 2662, about 118 [light-years](/source/Light-years) away from [Earth](/source/Earth). The primary [main-sequence star](/source/Main-sequence_star) belongs to the [spectral class](/source/Spectral_class) of F6. The star system is extremely young, and it is slightly enriched in [heavy elements](/source/Heavy_elements), with an abundance of such elements at about 115% that of [the Sun](/source/Sun).[5]

The primary star is surrounded by a debris disk discovered by the [Herschel Space Observatory](/source/Herschel_Space_Observatory),[8] and the plane of the disk is likely misaligned with the planetary orbits by 17–32°.[9] The effective temperature of this disk is 55 [K](/source/Kelvin).[10]

The possibility of other stellar companions near the primary star was ruled out in 2016, for projected separations above 5″ (181 [AU](/source/Astronomical_unit)).[11]

The existence of a secondary companion (called LDS 2662 B, or LSPM J1301+6337) was discovered in 2001[4] and confirmed to be bound to the primary in 2007. Initially believed to be a single [red dwarf](/source/Red_dwarf) star,[12] in 2012 the companion was discovered to actually be a pair of nearly identical red dwarfs, of spectral class M3.5, orbiting each other at a distance of 7.2±2.6 [AU](/source/Astronomical_unit), with a period of 39 years.[4]

## Planetary system

In 2013, one [superjovian](/source/Super-jupiter) planet, [HD 113337 b](/source/HD_113337_b), was discovered, via the [radial velocity method](/source/Radial_velocity_method), on an eccentric orbit around HD 113337.[13] Another giant planet or [brown dwarf](/source/Brown_dwarf) candidate, [HD 113337 c](/source/HD_113337_c), has been suspected since 2018,[14] with the evidence for its existence strengthened in 2019,[5] and confirmed via [astrometry](/source/Astrometry) in 2020.[9] The 2020 study estimates an inclination of 31° for the outer planet, while a 2022 study estimates an inclination of 57.5°.[15]

The HD 113337 planetary system[5][9][15] Companion (in order from star) Mass Semimajor axis (AU) Orbital period (days) Eccentricity Inclination (°) Radius b ≥3.259+0.377 −0.409 MJ 1.022+0.055 −0.062 317.6+1.6 −1.4 0.280+0.036 −0.041 — — c 19.821+2.430 −2.575 MJ 6.805+0.536 −0.468 5429.9+450.3 −286.0 0.164+0.057 −0.056 57.478+4.552 −3.652 —

## 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](/source/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). [XHIP record for this object](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-ref=VIZ681510a8389ecb&-out.src=V%2F137D%2FXHIP&-nav=cat%3AV%2F137D%26tab%3A{V%2F137D%2FXHIP}%26key%3Asource%3DV%2F137D%2FXHIP%26HTTPPRM%3A&-source=V%2F137D%2FXHIP&-out=HIP&HIP=63584&-out=Comp&-out=Gr&-out=RAJ2000&-out=DEJ2000&-out=Dist&-out=X&-out=Y&-out=Z&-out=SpType&-out=Simbad&-out=Hpmag&-out=Lum&-out=Cst) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-GaiaDR3_2-0) [***b***](#cite_ref-GaiaDR3_2-1) [***c***](#cite_ref-GaiaDR3_2-2) [***d***](#cite_ref-GaiaDR3_2-3) [***e***](#cite_ref-GaiaDR3_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%3D1676282377934772608%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. **[^](#cite_ref-3)** [ПЛАНЕТНЫЕ СИСТЕМЫ HD 113337 HIP 63584 HR 4934](http://www.allplanets.ru/star.php?star=HD%20113337)

1. ^ [***a***](#cite_ref-Janson2012_4-0) [***b***](#cite_ref-Janson2012_4-1) [***c***](#cite_ref-Janson2012_4-2) Janson, Markus; Hormuth, Felix; Bergfors, Carolina; Brandner, Wolfgang; Hippler, Stefan; Daemgen, Sebastian; Kudryavtseva, Natalia; Schmalzl, Eva; Schnupp, Carolin; Henning, Thomas (2012), "The AstraLux Large M-dwarf Multiplicity Survey", *The Astrophysical Journal*, **754** (1): 44, [arXiv](/source/ArXiv_(identifier)):[1205.4718](https://arxiv.org/abs/1205.4718), [Bibcode](/source/Bibcode_(identifier)):[2012ApJ...754...44J](https://ui.adsabs.harvard.edu/abs/2012ApJ...754...44J), [doi](/source/Doi_(identifier)):[10.1088/0004-637X/754/1/44](https://doi.org/10.1088%2F0004-637X%2F754%2F1%2F44), [S2CID](/source/S2CID_(identifier)) [118475425](https://api.semanticscholar.org/CorpusID:118475425)

1. ^ [***a***](#cite_ref-Borgniet2019_5-0) [***b***](#cite_ref-Borgniet2019_5-1) [***c***](#cite_ref-Borgniet2019_5-2) [***d***](#cite_ref-Borgniet2019_5-3) Borgniet, Simon; Perraut, K.; Su, K.; Bonnefoy, M.; Delorme, Philippe; Lagrange, Anne-Marie; Bailey, V.; Buenzli, E.; Defrère, D.; Henning, T.; Hinz, P.; Leisenring, J.; Meunier, Nadège; Mourard, D.; Nardetto, N.; Skemer, A. (2020), "Constraints on HD 113337 fundamental parameters and planetary system. Combining long-base visible interferometry, disc imaging, and high-contrast imaging", *Astronomy & Astrophysics*, **A44**: 627, [arXiv](/source/ArXiv_(identifier)):[1905.11156](https://arxiv.org/abs/1905.11156), [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201935494](https://doi.org/10.1051%2F0004-6361%2F201935494), [S2CID](/source/S2CID_(identifier)) [166228639](https://api.semanticscholar.org/CorpusID:166228639)

1. **[^](#cite_ref-6)** Sousa, S. G.; Adibekyan, V.; Delgado-Mena, E.; Santos, Nuno C.; Andreasen, D. T.; Ferreira, A. C. S.; Tsantaki, M.; Barros, S. C. C.; Demangeon, O.; Israelian, G.; Faria, J. P.; Figueira, P.; Mortier, A.; Brandao, I.; Montalto, M.; Rojas-Ayala, B.; Santerne, Alexandre (2018), "SWEET-Cat updated New homogenous spectroscopic parameters", *Astronomy & Astrophysics*, **A58**: 620, [arXiv](/source/ArXiv_(identifier)):[1810.08108](https://arxiv.org/abs/1810.08108), [Bibcode](/source/Bibcode_(identifier)):[2018A&A...620A..58S](https://ui.adsabs.harvard.edu/abs/2018A&A...620A..58S), [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201833350](https://doi.org/10.1051%2F0004-6361%2F201833350), [S2CID](/source/S2CID_(identifier)) [119374557](https://api.semanticscholar.org/CorpusID:119374557)

1. **[^](#cite_ref-SIMBAD_7-0)** ["HD 113337"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+113337). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 8 October 2020.

1. **[^](#cite_ref-8)** Holland, Wayne S.; Matthews, Brenda C.; Kennedy, Grant M.; Greaves, Jane S.; Wyatt, Mark C.; Booth, Mark; Bastien, Pierre; Bryden, Geoff; Butner, Harold; Chen, Christine H.; Chrysostomou, Antonio; Davies, Claire L.; Dent, William R. F.; Di Francesco, James; Duchêne, Gaspard; Gibb, Andy G.; Friberg, Per; Ivison, Rob J.; Jenness, Tim; Kavelaars, JJ; Lawler, Samantha; Lestrade, Jean-François; Marshall, Jonathan P.; Moro-Martin, Amaya; Panić, Olja; Phillips, Neil; Serjeant, Stephen; Schieven, Gerald H.; Sibthorpe, Bruce; et al. (2017), "SONS: The JCMT legacy survey of debris discs in the submillimetre", *Monthly Notices of the Royal Astronomical Society*, **470** (3): 3606–3663, [arXiv](/source/ArXiv_(identifier)):[1706.01218](https://arxiv.org/abs/1706.01218), [Bibcode](/source/Bibcode_(identifier)):[2017MNRAS.470.3606H](https://ui.adsabs.harvard.edu/abs/2017MNRAS.470.3606H), [doi](/source/Doi_(identifier)):[10.1093/mnras/stx1378](https://doi.org/10.1093%2Fmnras%2Fstx1378), [S2CID](/source/S2CID_(identifier)) [7301654](https://api.semanticscholar.org/CorpusID:7301654)

1. ^ [***a***](#cite_ref-Xuan2020_9-0) [***b***](#cite_ref-Xuan2020_9-1) [***c***](#cite_ref-Xuan2020_9-2) Xuan, Jerry W.; Kennedy, Grant M.; Wyatt, Mark C.; Yelverton, Ben (2020), "Mutual inclinations between giant planets and their debris discs in HD 113337 and HD 38529", *Monthly Notices of the Royal Astronomical Society*, **499** (4): 5059–5074, [arXiv](/source/ArXiv_(identifier)):[2010.02961](https://arxiv.org/abs/2010.02961), [Bibcode](/source/Bibcode_(identifier)):[2020MNRAS.499.5059X](https://ui.adsabs.harvard.edu/abs/2020MNRAS.499.5059X), [doi](/source/Doi_(identifier)):[10.1093/mnras/staa3155](https://doi.org/10.1093%2Fmnras%2Fstaa3155), [S2CID](/source/S2CID_(identifier)) [222177269](https://api.semanticscholar.org/CorpusID:222177269)

1. **[^](#cite_ref-10)** Yelverton, Ben; Kennedy, Grant M.; Su, Kate Y L.; Wyatt, Mark C. (2019), "A statistically significant lack of debris discs in medium separation binary systems", *Monthly Notices of the Royal Astronomical Society*, **488** (3): 3588–3606, [arXiv](/source/ArXiv_(identifier)):[1907.04800](https://arxiv.org/abs/1907.04800), [Bibcode](/source/Bibcode_(identifier)):[2019MNRAS.488.3588Y](https://ui.adsabs.harvard.edu/abs/2019MNRAS.488.3588Y), [doi](/source/Doi_(identifier)):[10.1093/mnras/stz1927](https://doi.org/10.1093%2Fmnras%2Fstz1927), [S2CID](/source/S2CID_(identifier)) [195874349](https://api.semanticscholar.org/CorpusID:195874349)

1. **[^](#cite_ref-11)** Ginski, C.; Mugrauer, M.; Seeliger, M.; Buder, S.; Errmann, R.; Avenhaus, H.; Mouillet, D.; Maire, A.-L.; Raetz, S. (2016), "A lucky imaging multiplicity study of exoplanet host stars II", *Monthly Notices of the Royal Astronomical Society*, **457** (2): 2173–2191, [arXiv](/source/ArXiv_(identifier)):[1601.01524](https://arxiv.org/abs/1601.01524), [Bibcode](/source/Bibcode_(identifier)):[2016MNRAS.457.2173G](https://ui.adsabs.harvard.edu/abs/2016MNRAS.457.2173G), [doi](/source/Doi_(identifier)):[10.1093/mnras/stw049](https://doi.org/10.1093%2Fmnras%2Fstw049), [S2CID](/source/S2CID_(identifier)) [53626523](https://api.semanticscholar.org/CorpusID:53626523)

1. **[^](#cite_ref-12)** Rhee, Joseph H.; Song, Inseok; Zuckerman, B.; McElwain, Michael (2007), "Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs", *The Astrophysical Journal*, **660** (2): 1556–1571, [arXiv](/source/ArXiv_(identifier)):[astro-ph/0609555](https://arxiv.org/abs/astro-ph/0609555), [Bibcode](/source/Bibcode_(identifier)):[2007ApJ...660.1556R](https://ui.adsabs.harvard.edu/abs/2007ApJ...660.1556R), [doi](/source/Doi_(identifier)):[10.1086/509912](https://doi.org/10.1086%2F509912), [S2CID](/source/S2CID_(identifier)) [11879505](https://api.semanticscholar.org/CorpusID:11879505)

1. **[^](#cite_ref-13)** Borgniet, Simon; Boisse, Isabelle; Lagrange, Anne-Marie; Bouchy, François; Arnold, Luc; Díaz, Rodrigo F.; Galland, Franck; Delorme, Philippe; Hébrard, Guillaume; Santerne, Alexandre; Ehrenreich, David; Ségransan, Damien; Bonfils, Xavier; Delfosse, Xavier; Santos, Nuno C.; Forveille, Thierry; Moutou, Claire; Udry, Stéphane; Eggenberger, Anne; Pepe, Francesco; Astudillo-Defru, Nicola; Montagnier, Guillaume (2013), "Extrasolar planets and brown dwarfs around A--F type stars. VIII. A giant planet orbiting the young star HD113337", *Astronomy & Astrophysics*, **561**: A65, [arXiv](/source/ArXiv_(identifier)):[1310.1994](https://arxiv.org/abs/1310.1994), [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201321783](https://doi.org/10.1051%2F0004-6361%2F201321783), [S2CID](/source/S2CID_(identifier)) [118538542](https://api.semanticscholar.org/CorpusID:118538542)

1. **[^](#cite_ref-14)** Borgniet, Simon; Lagrange, Anne-Marie; Meunier, Nadège; Galland, Franck; Arnold, Luc; Astudillo-Defru, Nicola; Beuzit, Jean-Luc; Boisse, Isabelle; Bonfils, Xavier; Bouchy, François; Debondt, Katrien; Deleuil, Magali; Delfosse, Xavier; Desort, Morgan; Díaz, Rodrigo F.; Eggenberger, Anne; Ehrenreich, David; Forveille, Thierry; Hébrard, Guillaume; Loeillet, Benoit; Lovis, Christophe; Montagnier, Guillaume; Moutou, Claire; Pepe, Francesco; Perrier, Christian; Pont, Frédéric; Queloz, Didier; Santerne, Alexandre; Santos, Nuno C.; Ségransan, Damien; da Silva, Ronaldo; Sivan, Jean-Pierre; Udry, Stéphane; Vidal-Madjar, Alfred (2019), "Extrasolar planets and brown dwarfs around AF-type stars. X. The SOPHIE northern sample. Combining the SOPHIE and HARPS surveys to compute the close giant planet mass-period distribution around AF-type stars", *Astronomy & Astrophysics*, **621**: A87, [arXiv](/source/ArXiv_(identifier)):[1809.09914](https://arxiv.org/abs/1809.09914), [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201833431](https://doi.org/10.1051%2F0004-6361%2F201833431), [S2CID](/source/S2CID_(identifier)) [67773783](https://api.semanticscholar.org/CorpusID:67773783)

1. ^ [***a***](#cite_ref-Feng2022_15-0) [***b***](#cite_ref-Feng2022_15-1) Feng, Fabo; Butler, R. Paul; et al. (August 2022). ["3D Selection of 167 Substellar Companions to Nearby Stars"](https://doi.org/10.3847%2F1538-4365%2Fac7e57). *[The Astrophysical Journal Supplement Series](/source/The_Astrophysical_Journal_Supplement_Series)*. **262** (21): 21. [arXiv](/source/ArXiv_(identifier)):[2208.12720](https://arxiv.org/abs/2208.12720). [Bibcode](/source/Bibcode_(identifier)):[2022ApJS..262...21F](https://ui.adsabs.harvard.edu/abs/2022ApJS..262...21F). [doi](/source/Doi_(identifier)):[10.3847/1538-4365/ac7e57](https://doi.org/10.3847%2F1538-4365%2Fac7e57). [S2CID](/source/S2CID_(identifier)) [251864022](https://api.semanticscholar.org/CorpusID:251864022).

v t e Constellation of Draco List of stars in Draco Draco in Chinese astronomy Stars Bayer α (Thuban) β (Rastaban) γ (Eltanin) δ (Altais) ε (Tyl) ζ (Aldhibah) η (Athebyne) θ ι (Edasich) κ λ (Giausar) μ (Alrakis) ν (Kuma) ξ (Grumium) ο π ρ σ (Alsafi) τ υ φ χ ψ1 (Dziban) ψ2 ω Flamsteed 4 6 7 (Tianyi) 8 (Taiyi) 10 (i) 15 (A) 18 (g) 19 (h) 26 36 39 (b) 42 (Fafnir) 45 (d) 50 59 64 (e) 68 Variable TW YY AG BY CL CM CX DO EK HP V581 HR 3751 4126 4934 5811 6237 6518 6618 (Alruba) 6817 7137 7783 HD 109246 (Funi) 101364 128717 147379 156279 158259 176693 191939 Other 2MASS 1237+6526 2MASS J17554042+6551277 G 240-72 GD 356 Gliese 420 Gliese 625 Gliese 687 GRW +70 8247 Kepler-4 Kepler-10 Kepler-12 Kepler-90 Kepler-296 KOI-256 LP 71-82 Qatar-1 SDSS J1240+6710 Struve 2398 TOI-1136 WD 1856+534 WISE 1647+5632 WISE 1841+7000 Exoplanets HD 139357 b HD 167042 b ι Dra b (Hypatia) Kepler-4b Kepler-10b c Kepler-12b Kepler-90e f g h i Kepler-296b c d e f TOI-1452 b TrES-2b Star clusters LAMOST 1 Nebulae Cat's Eye Nebula NGC 6742 Galaxies NGC 3147 3197 3735 4121 4125 4221 4236 4319 4331 4332 4363 4441 4513 4545 4589 5678 5777 5866 5866B 5879 5905 5907 5949 5963 5965 5982 5985 6090 6248 6285 6286 6338 6340 6365 6373 6394 6412 6503 6505 6566 6621 6622 6670 6676 6786 6789 Other 1ES 1927+654 1ES 1959+650 3C 249.1 3C 305 3C 319 3C 343 3C 343.1 3C 351 3C 356 3C 371 3C 380 3C 390.3 3C 401 4C +72.26 4C 73.08 8C 1241+735 Abell 2218 BCG Bean galaxy Beaver galaxy BZQ J1727+5510 Draco Dwarf Draco II GB 1508+5714 Goldfish galaxy H1821+643 HFLS3 IERS B1946+708 IRAS F17179+5444 IRAS 18580+6527 J120011.1+680924.8 KKR 25 Markarian 817 Markarian 876 Original TRG PGC 39058 Porphyrion QSO B1823+568 RGZ J172749.5+534647 S5 1803+784 S5 2007+777 SDSS J1715+6008 Tadpole Galaxy UGC 9391 UGC 9405 UGC 11241 UGC 11411 WISEA J145223.62+611707.5 WN B1851+5707 Galaxy clusters Abell 2218 CL1358+62 Draco Supercluster NGC 5866 Group Astronomical events SN 2003jb SN 2005B SN 2016aps Swift J1644+57 Category

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Adapted from the Wikipedia article [HD 113337](https://en.wikipedia.org/wiki/HD_113337) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/HD_113337?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.