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 Position of TOI-1338 in Pictor | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pictor |
| Right ascension | 06h 08m 31.968s[1] |
| Declination | −59° 32′ 28.08″[1] |
| Apparent magnitude (V) | 11.72[2] |
| Characteristics | |
| Spectral type | F8 / M[3] |
| Variable type | eclipsing[3] |
| Astrometry | |
| Radial velocity (Rv) | 23.56±5.34[1] km/s |
| Proper motion (μ) | RA: −12.057[1] mas/yr Dec.: +34.513[1] mas/yr |
| Parallax (π) | 2.4752 ± 0.0099 mas[1] |
| Distance | 1,318 ± 5 ly (404 ± 2 pc) |
| Orbit[4] | |
| Period (P) | 14.6085659+0.0000062 −0.0000057 d |
| Semi-major axis (a) | 0.1321+0.0024 −0.0025 AU[2] |
| Eccentricity (e) | 0.155489+0.000011 −0.000010 |
| Inclination (i) | 90.403+0.045 −0.047° |
| Argument of periastron (ω) (secondary) | 117.7638+0.0042 −0.0041° |
| Semi-amplitude (K1) (primary) | 21.619±0.007[2] km/s |
| Details | |
| TOI-1338 A | |
| Mass | 1.0936±0.0072[4] M☉ |
| Radius | 1.313±0.0038[4] R☉ |
| Luminosity | 2.1[1] L☉ |
| Surface gravity (log g) | 4.0±0.08[2] cgs |
| Temperature | 6,050±80[2] K |
| Metallicity [Fe/H] | +0.01±0.05[2] dex |
| Rotation | 19±3 d[2] |
| Rotational velocity (v sin i) | 3.6±0.6[2] km/s |
| Age | 4.4±0.2[2] Gyr |
| TOI-1338 B | |
| Mass | 0.3069±0.0012[4] M☉ |
| Radius | 0.30582±0.00094[4] R☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
TOI-1338 is a binary star system located in the constellation Pictor, about 1,320 light-years from Earth. It is orbited by two known circumbinary planets, TOI-1338 b, discovered by the Transiting Exoplanet Survey Satellite (TESS)[2] and BEBOP-1c, discovered by the Binaries Escorted By Orbiting Planets project.[6]
- ^ a b c d e f g Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d e f g h i j Cite error: The named reference
Kostov et alwas invoked but never defined (see the help page). - ^ a b Triaud, Amaury H. M. J.; Martin, David V.; Ségransan, Damien; Smalley, Barry; Maxted, Pierre F. L.; Anderson, David R.; Bouchy, François; Collier Cameron, Andrew; Faedi, Francesca; Gómez Maqueo Chew, Yilen; Hebb, Leslie; Hellier, Coel; Marmier, Maxime; Pepe, Francesco; Pollacco, Don; Queloz, Didier; Udry, Stéphane; West, Richard (2017). "The EBLM Project. IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot Jupiters". Astronomy and Astrophysics. 608: A129. arXiv:1707.07521. Bibcode:2017A&A...608A.129T. doi:10.1051/0004-6361/201730993. S2CID 119372451.
- ^ a b c d e Cite error: The named reference
WangLiu2024was invoked but never defined (see the help page). - ^ Cite error: The named reference
SIMBADwas invoked but never defined (see the help page). - ^ Cite error: The named reference
Standing2023was invoked but never defined (see the help page).