# HIP 67522

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G-type main-sequence star

HIP 67522 Observation data Epoch J2000 Equinox J2000 Constellation Centaurus[1] Right ascension 13h 50m 06.280s[2] Declination −40° 50′ 08.88″[2] Apparent magnitude (V) 9.80±0.03[3] Characteristics Evolutionary stage Main sequence[4] Spectral type G0V[5] Astrometry Radial velocity (Rv) 8.26±2.19[2] km/s Proper motion (μ) RA: −28.907 mas/yr[2] Dec.: −22.248 mas/yr[2] Parallax (π) 8.0170±0.0182 mas[2] Distance 406.8 ± 0.9 ly (124.7 ± 0.3 pc) Details[4] Mass 1.22±0.05 M☉ Radius 1.38±0.06 R☉ Luminosity 1.75±0.09 L☉ Temperature 5,675±75 K Rotation 1.418±0.016 days Rotational velocity (v sin i) 54.2±0.7 km/s Age 17±2 Myr Other designations CD−40 8189, HD 120411, HIP 67522, TOI-6551, TIC 166527623[6] Database references SIMBAD data Exoplanet Archive data

**HIP 67522** is a [G-type main sequence](/source/G-type_main-sequence_star) star located at a distance of 407 [light-years](/source/Light-year) (125 [parsecs](/source/Parsec)) away in the constellation of [Centaurus](/source/Centaurus). Its [visual magnitude](/source/Visual_magnitude) of 9.8 makes it much too faint to be seen by the unaided eye. It is slightly larger than the Sun (1.38 *R*☉) but cooler (5,675 K versus 5,772 K for the Sun). It is also very young being only around 17 million years old. It has two exoplanets orbiting it.[4]

## Planetary system

Two [exoplanets](/source/Exoplanet), [HIP 67522 b](/source/HIP_67522_b) and HIP 67522 c, are known to orbit the star and transit its face as seen from Earth. Their orbital periods are much less than [Mercury](/source/Mercury_(planet))'s 88 days around the Sun, being 6.96 days for *b* and 14.33 days for *c*.[7]

Detections of frequent flaring of the star during the transit phase of the innermost planet (HIP 67522b) suggest that interacts with the stars magnetic field producing the high rate of flares.[8]

The HIP 67522 planetary system[9][10] Companion (in order from star) Mass Semimajor axis (AU) Orbital period (days) Eccentricity Inclination (°) Radius b 0.0434±0.0031 MJ 0.0748+0.0016 −0.0018 6.9594731(22) 0.064+0.187 −0.049 89.88+1.08 −0.93 0.891+0.021 −0.02 RJ c — 0.1228+0.0042 −0.0053 14.334892(12) 0.077+0.195 −0.056 89.2+1.75 −0.64 0.708+0.031 −0.032 RJ

## References

1. **[^](#cite_ref-xhip_1-0)** 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-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%3D6113920619134019456%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. **[^](#cite_ref-tycho2_3-0)** Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". *Astronomy and Astrophysics*. **355**. [Bibcode](/source/Bibcode_(identifier)):[2000A&A...355L..27H](https://ui.adsabs.harvard.edu/abs/2000A&A...355L..27H).

1. ^ [***a***](#cite_ref-Rizzuto2020_4-0) [***b***](#cite_ref-Rizzuto2020_4-1) [***c***](#cite_ref-Rizzuto2020_4-2) Rizzuto, Aaron C.; et al. (13) (22 June 2020). ["TESS Hunt for Young and Maturing Exoplanets (THYME). II. A 17 Myr Old Transiting Hot Jupiter in the Sco-Cen Association"](https://doi.org/10.3847%2F1538-3881%2Fab94b7). *The Astronomical Journal*. **160** (1): 33. [arXiv](/source/ArXiv_(identifier)):[2005.00013](https://arxiv.org/abs/2005.00013). [Bibcode](/source/Bibcode_(identifier)):[2020AJ....160...33R](https://ui.adsabs.harvard.edu/abs/2020AJ....160...33R). [doi](/source/Doi_(identifier)):[10.3847/1538-3881/ab94b7](https://doi.org/10.3847%2F1538-3881%2Fab94b7).

1. **[^](#cite_ref-sacy_5-0)** Torres, C. A. O.; Quast, G. R.; Da Silva, L.; de la Reza, R.; Melo, C. H. F.; Sterzik, M. (2006). "Search for associations containing young stars (SACY). I. Sample and searching method". *Astronomy and Astrophysics*. **460** (3): 695. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0609258](https://arxiv.org/abs/astro-ph/0609258). [Bibcode](/source/Bibcode_(identifier)):[2006A&A...460..695T](https://ui.adsabs.harvard.edu/abs/2006A&A...460..695T). [doi](/source/Doi_(identifier)):[10.1051/0004-6361:20065602](https://doi.org/10.1051%2F0004-6361%3A20065602).

1. **[^](#cite_ref-SIMBAD_6-0)** ["HIP 67522"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP+67522). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 2024-12-22.

1. **[^](#cite_ref-7)** ["HIP 67522 Overview"](https://exoplanetarchive.ipac.caltech.edu/overview/HIP%2067522).

1. **[^](#cite_ref-8)** Ilin, Ekaterina; Vedantham, Harish K.; Poppenhäger, Katja; Bloot, Sanne; Callingham, Joseph R.; Brandeker, Alexis; Chakraborty, Hritam (2025-07-02). ["Close-in planet induces flares on its host star"](https://www.nature.com/articles/s41586-025-09236-z). *Nature*: 1–4. [doi](/source/Doi_(identifier)):[10.1038/s41586-025-09236-z](https://doi.org/10.1038%2Fs41586-025-09236-z). [hdl](/source/Hdl_(identifier)):[11370/f8c9e02a-5259-4e35-9a51-2934897a6744](https://hdl.handle.net/11370%2Ff8c9e02a-5259-4e35-9a51-2934897a6744). [ISSN](/source/ISSN_(identifier)) [1476-4687](https://search.worldcat.org/issn/1476-4687). [PMID](/source/PMID_(identifier)) [40604272](https://pubmed.ncbi.nlm.nih.gov/40604272).

1. **[^](#cite_ref-Barber2024_9-0)** Barber, Madyson G.; Thao, Pa Chia; et al. (September 2024). ["TESS Investigation—Demographics of Young Exoplanets (TI-DYE). II. A Second Giant Planet in the 17 Myr System HIP 67522"](https://doi.org/10.3847%2F2041-8213%2Fad77d9). *[The Astrophysical Journal Letters](/source/The_Astrophysical_Journal_Letters)*. **973** (1): L30. [arXiv](/source/ArXiv_(identifier)):[2407.04763](https://arxiv.org/abs/2407.04763). [Bibcode](/source/Bibcode_(identifier)):[2024ApJ...973L..30B](https://ui.adsabs.harvard.edu/abs/2024ApJ...973L..30B). [doi](/source/Doi_(identifier)):[10.3847/2041-8213/ad77d9](https://doi.org/10.3847%2F2041-8213%2Fad77d9).

1. **[^](#cite_ref-thao_10-0)** Thao, Pa Chia; Mann, Andrew W.; Feinstein, Adina D.; Gao, Peter; Thorngren, Daniel; Rotman, Yoav; Welbanks, Luis; Brown, Alexander; Duvvuri, Girish M.; France, Kevin; Longo, Isabella; Sandoval, Angeli; Schneider, P. Christian; Wilson, David J.; Youngblood, Allison (2024-12-01). ["The Featherweight Giant: Unraveling the Atmosphere of a 17 Myr Planet with JWST"](https://doi.org/10.3847%2F1538-3881%2Fad81d7). *The Astronomical Journal*. **168** (6): 297. [arXiv](/source/ArXiv_(identifier)):[2409.16355](https://arxiv.org/abs/2409.16355). [Bibcode](/source/Bibcode_(identifier)):[2024AJ....168..297T](https://ui.adsabs.harvard.edu/abs/2024AJ....168..297T). [doi](/source/Doi_(identifier)):[10.3847/1538-3881/ad81d7](https://doi.org/10.3847%2F1538-3881%2Fad81d7). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

## External links

- [Exoplanet Triggers Stellar Flares and Hastens Its Demise](https://eos.org/articles/exoplanet-triggers-stellar-flares-and-hastens-its-demise), 5 August 2025. [Eos (magazine)](/source/Eos_(magazine)): [https://doi.org/10.1029/2025EO250284](https://doi.org/10.1029/2025EO250284)

v t e Constellation of Centaurus List of stars in Centaurus Centaurus in Chinese astronomy Stars Bayer α A (Rigil Kentaurus) B (Toliman) C (Proxima Centauri) β (Hadar) γ δ ε ζ (Leepwal) η θ (Menkent) ι (Kulou) κ λ μ ν (Heng) ξ1 ξ2 ο1 ο2 π ρ σ τ υ1 υ2 φ χ ψ x1 x2 C3 D E F G H J K M N Q Flamsteed 1 (i) 2 (g) 3 (k) 4 (h) Variable R T V Y RR SV SX BV DY UY V346 V553 V744 V752 V761 (a) V763 (C1) V766 V779 (Krzemiński's star) V803 V810 V816 (Przybylski's Star) V831 V842 V885 V886 V863 V1032 V1369 V1400 V1935 HR 4460 (A) 4466 (C2) 4499 4522 4523 4537 (j) 4546 (B) 4721 4748 (u) 4796 4817 (l) 4831 (w) 4874 (p) 4888 (e) 4889 (n) 4940 (f) 4979 4989 5006 (r) 5041 (m) 5089 (d) 5174 (z) 5222 (y) 5224 5241 5297 5358 (v) 5371 5471 (b) 5485 (c1) 5489 (c2) HD 97413 98176 100453 101581 101930 102117 (Uklun) 103197 107914 108236 109749 110113 113538 113766 114386 114729 115600 116434 (Matza) 117207 117618 (Dofida) 117939 120411 121228 121504 124448 (Popper's Star) 125072 125595 131399 Other 2MASS J1126−5003 2M1207 Gaia BH2 HD 131399 Ab PSR B1259−63 PSR J1311−3430 TOI-763 WASP-15 (Nyamien) WASP-41 WASP-42 WASP-167/KELT-13 Exoplanets 2M1207b b Centauri b HD 101930 b HD 102117 b (Leklsullun) HD 103197 b HD 109749 b HD 113538 b c HD 114386 b HD 114729 b HD 117207 b HD 117618 b (Noifasui) HD 121504 b HIP 65426 b (Najsakopajk) HIP 67522 b NGTS-13b Proxima Centauri b c d WASP-15b (Asye) Star clusters NGC 3766 4230 4507 5281 5286 5316 5460 5617 5662 Other IC 2944 ω Centauri Scorpius–Centaurus association Stock 16 Nebulae NGC 3918 5307 Other Boomerang Nebula Fleming 1 G292.0+1.8 G306.3-0.9 Gum 41 IC 2944 IRAS 13208−6020 RCW 79 RCW 86 Southern Crab Nebula SuWt 2 Galaxies NGC 3557 3568 3749 3783 4444 4603 4622 4650A 4683 4696 4706 4709 4729 4730 4743 4744 4909 4930 4945 4976 5011 A 5026 5064 5082 5090 5091 5102 5114 5121 5128 (Centaurus A) 5161 5206 5253 5266 5291 5398 5408 5419 5483 5516 Other ESO 269-57 ESO 325-4 ESO 383-76 ESO 444-46 Fourcade-Figueroa Object IC 3370 IC 4214 IC 4329A IRAS 13224−3809 J1144−4308 LEDA 677373 PKS 1144−379 PKS 1353−341 PKS 1424−418 Galaxy clusters Abell S740 Centaurus Cluster Shapley Supercluster Astronomical events GW190521 SN 185 SN 1895B (Z) SN 1972E SN 1986G J1407b SN 2019so Category

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Adapted from the Wikipedia article [HIP 67522](https://en.wikipedia.org/wiki/HIP_67522) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/HIP_67522?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.