# TOI-763

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G-type star in the constellation of Centaurus

TOI-763 Location of TOI-763 in the night sky. The general location of the star is marked within the red square. Observation data Epoch J2000 Equinox J2000 Constellation Centaurus[1] Right ascension 12h 57m 52.447s[2] Declination −39° 45′ 27.71″[2] Apparent magnitude (V) 10.28[3] Characteristics Evolutionary stage main sequence[4][2] Spectral type G[4] Astrometry Radial velocity (Rv) −13.82±0.16[2] km/s Proper motion (μ) RA: −76.744 mas/yr[2] Dec.: −84.721 mas/yr[2] Parallax (π) 10.4655±0.0183 mas[2] Distance 311.6 ± 0.5 ly (95.6 ± 0.2 pc) Details[4] Mass 0.917±0.028 M☉ Radius 0.897±0.013 R☉ Luminosity 0.68[5] L☉ Surface gravity (log g) 4.45±0.05 cgs Temperature 5,450±60 K Metallicity [Fe/H] +0.01±0.05 dex Rotation 27±16 days Age 6.0[6] Gyr Other designations CD−39 7945, TOI-763, TIC 178819686, 2MASS J12575245-3945275[3] Database references SIMBAD data Exoplanet Archive data

TOI-763 is the bright star to the left of the galaxy [NGC 4832](https://en.wikipedia.org/w/index.php?title=NGC_4832&action=edit&redlink=1) in this image.

**TOI-763** is a single [high proper motion](/source/Proper_motion) [G-type](/source/G-type_main-sequence_star) [star](/source/Star) in the [constellation](/source/Constellation) of [Centaurus](/source/Centaurus), near the galaxy [NGC 4832](https://en.wikipedia.org/w/index.php?title=NGC_4832&action=edit&redlink=1) in the sky.[3] It is approximately 0.9 times the mass and radius of the [Sun](/source/Sun), with a surface temperature of 5,450±60 [K](/source/Kelvin) and a spectral type of G7.[7] TOI-763 is too faint to be visible to the naked eye. Based upon [parallax](/source/Stellar_parallax) measurements, it is located 312 [light-years](/source/Light-year) (95.6 [parsecs](/source/Parsec)) in distance from the Sun. The object is drifting towards the Sun with a [radial velocity](/source/Radial_velocity) of −13.8 km/s.[2]

## Planetary system

In August of 2020, two [exoplanets](/source/Exoplanet) were identified via the [transit method](/source/Transit_method) of exoplanet detection by the [Transiting Exoplanet Survey Satellite](/source/Transiting_Exoplanet_Survey_Satellite) (TESS), a [space telescope](/source/Space_telescope) for [NASA](/source/NASA)'s [Explorer program](/source/Explorer_program), designed to search for exoplanets. A third candidate planet is suspected based on [radial velocity](/source/Radial_velocity) observations.[4]

Neither of these two planets [orbit](/source/Orbit) in the [habitable zone](/source/Habitable_zone) and are both believed to be [sub-Neptune](/source/Sub-Neptune) planets.[8]

The TOI-763 planetary system[4] Companion (in order from star) Mass Semimajor axis (AU) Orbital period (days) Eccentricity Inclination (°) Radius b 9.79±0.78 M🜨 0.0600±0.0006 5.6057±0.0013 0.04+0.04 −0.03 — 2.28±0.11 R🜨 c 9.32±1.02 M🜨 0.1011±0.0010 12.2737+0.0053 −0.0077 0.04+0.04 −0.03 — 2.63±0.12 R🜨 d (unconfirmed) ≥9.54±1.59 M🜨 0.2504+0.0093 −0.0105 47.7991±2.7399 ~0 — —

## See also

- [List of exoplanets discovered in 2020](/source/List_of_exoplanets_discovered_in_2020)

## References

1. **[^](#cite_ref-constellation_1-0)** [Roman, Nancy G.](/source/Nancy_Roman) (1987). ["Identification of a constellation from a position"](https://doi.org/10.1086%2F132034). *[Publications of the Astronomical Society of the Pacific](/source/Publications_of_the_Astronomical_Society_of_the_Pacific)*. **99** (617): 695. [Bibcode](/source/Bibcode_(identifier)):[1987PASP...99..695R](https://ui.adsabs.harvard.edu/abs/1987PASP...99..695R). [doi](/source/Doi_(identifier)):[10.1086/132034](https://doi.org/10.1086%2F132034). [Constellation record for this object](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?source=VI%2F42%2Fout&%2F%2Ftables=VI%2F42%2Fout&-c=TOI-763&-c.eq=J2000&-c.r=++2&-c.u=arcmin&-c.geom=r&-source=&-source=VI%2F42%2Fout&-out=RA1875&-out=DE1875&-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) [***f***](#cite_ref-GaiaDR3_2-5) [***g***](#cite_ref-GaiaDR3_2-6) 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%3D6140553127216043648%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-SIMBAD_3-0) [***b***](#cite_ref-SIMBAD_3-1) [***c***](#cite_ref-SIMBAD_3-2) ["CD-39 7945"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=CD-39+7945). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 2025-04-25.

1. ^ [***a***](#cite_ref-Fridlund2020_4-0) [***b***](#cite_ref-Fridlund2020_4-1) [***c***](#cite_ref-Fridlund2020_4-2) [***d***](#cite_ref-Fridlund2020_4-3) [***e***](#cite_ref-Fridlund2020_4-4) Fridlund, M; Livingston, J; Gandolfi, D; Persson, C M; Lam, K W F; Stassun, K G; Hellier, C; Korth, J; Hatzes, A P; Malavolta, L; Luque, R; Redfield, S; Guenther, E W; Albrecht, S; Barragan, O (2020-10-01). ["The TOI-763 system: sub-Neptunes orbiting a Sun-like star"](https://doi.org/10.1093%2Fmnras%2Fstaa2502). *Monthly Notices of the Royal Astronomical Society*. **498** (3): 4503–4517. [arXiv](/source/ArXiv_(identifier)):[2008.12535](https://arxiv.org/abs/2008.12535). [Bibcode](/source/Bibcode_(identifier)):[2020MNRAS.498.4503F](https://ui.adsabs.harvard.edu/abs/2020MNRAS.498.4503F). [doi](/source/Doi_(identifier)):[10.1093/mnras/staa2502](https://doi.org/10.1093%2Fmnras%2Fstaa2502). [ISSN](/source/ISSN_(identifier)) [0035-8711](https://search.worldcat.org/issn/0035-8711).

1. **[^](#cite_ref-dl2025_5-0)** De Laverny, Patrick; Ligi, Roxanne; Crida, Aurélien; Recio-Blanco, Alejandra; Palicio, Pedro A. (2025). "The *Gaia* spectroscopic catalogue of exoplanets and host stars". *Astronomy & Astrophysics*. **699**: A100. [arXiv](/source/ArXiv_(identifier)):[2505.22205](https://arxiv.org/abs/2505.22205). [Bibcode](/source/Bibcode_(identifier)):[2025A&A...699A.100D](https://ui.adsabs.harvard.edu/abs/2025A&A...699A.100D). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202554739](https://doi.org/10.1051%2F0004-6361%2F202554739).

1. **[^](#cite_ref-adrien2024_6-0)** Leleu, Adrien; Delisle, Jean-Baptiste; Burn, Remo; Izidoro, André; Udry, Stéphane; Dumusque, Xavier; Lovis, Christophe; Millholland, Sarah; Parc, Léna; Bouchy, François; Bourrier, Vincent; Alibert, Yann; Faria, João; Mordasini, Christoph; Ségransan, Damien (2024). "Resonant sub-Neptunes are puffier". *Astronomy & Astrophysics*. **687**: L1. [arXiv](/source/ArXiv_(identifier)):[2406.18991](https://arxiv.org/abs/2406.18991). [Bibcode](/source/Bibcode_(identifier)):[2024A&A...687L...1L](https://ui.adsabs.harvard.edu/abs/2024A&A...687L...1L). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202450587](https://doi.org/10.1051%2F0004-6361%2F202450587).

1. **[^](#cite_ref-7)** ["TOI-763"](https://www.exoplanetkyoto.org/exohtml/TOI-763.html). *www.exoplanetkyoto.org*. Retrieved 2025-04-25.

1. **[^](#cite_ref-8)** ["TOI-763 c - NASA Science"](https://science.nasa.gov/exoplanet-catalog/toi-763-c/). 2020-09-24. Retrieved 2025-04-25.

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 [TOI-763](https://en.wikipedia.org/wiki/TOI-763) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/TOI-763?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.