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WASP-75
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius[1] |
| Right ascension | 22h 49m 32.5676s[2] |
| Declination | −10° 40′ 31.926″[2] |
| Apparent magnitude (V) | 11.299[3] |
| Characteristics | |
| Evolutionary stage | Main sequence[4] |
| Spectral type | F9[5] |
| Astrometry | |
| Radial velocity (Rv) | 2.7±0.8[2] km/s |
| Proper motion (μ) | RA: 45.892[2] mas/yr Dec.: 15.428[2] mas/yr |
| Parallax (π) | 3.3387±0.0202 mas[2] |
| Distance | 977 ± 6 ly (300 ± 2 pc) |
| Details[3] | |
| Mass | 1.18 M☉ |
| Radius | 1.39 R☉ |
| Luminosity | 1.1±0.01[6] L☉ |
| Surface gravity (log g) | 4.233 cgs |
| Temperature | 6090 K |
| Metallicity [Fe/H] | 0.07±0.09[5] dex |
| Rotation | 11.2±1.5 d[5] |
| Age | 2.9±0.2[6] Gyr |
| Other designations | |
| BD−11 5929, Gaia DR3 2605161444735454464, K2-40, EPIC 206154641, GSC 05816-01135, 2MASS J22493256-1040320[7] | |
| Database references | |
| SIMBAD | data |
WASP-75 is an F-type main-sequence star about 980 light-years away. The star is much younger than the Sun at approximately 2.9 billion years.[6] WASP-75 is similar to the Sun in its concentration of heavy elements.[5]
Planetary system
[edit]In 2013 a transiting hot Jupiter planet b was detected on a tight, circular orbit,[8] and the planet was confirmed in 2018.[5] Its equilibrium temperature is 1,688 K.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.08±0.05[5] MJ | 0.0377±0.0006[5] | 2.484193 | <0.1 | 81.96±0.02[5]° | 1.31±0.02[5] RJ |
References
[edit]- ^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- ^ a b c d e f 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 Petigura, Erik A.; Crossfield, Ian J. M.; Isaacson, Howard; Beichman, Charles A.; Christiansen, Jessie L.; Dressing, Courtney D.; Fulton, Benjamin J.; Howard, Andrew W.; Kosiarek, Molly R.; Lépine, Sébastien; Schlieder, Joshua E.; Sinukoff, Evan; Yee, Samuel W. (2017), "Planet Candidates from K2 Campaigns 5–8 and Follow-up Optical Spectroscopy", The Astronomical Journal, 155: 21, arXiv:1711.06377, doi:10.3847/1538-3881/aa9b83, S2CID 55674757
- ^ Irwin, Stacy Ann (2015). Analysis of Angular Momentum in Planetary Systems and Host Stars (Thesis). Bibcode:2015PhDT.........5I.
- ^ a b c d e f g h i j Clark, B. J. M.; Anderson, D. R.; Hellier, C.; Turner, O. D.; Močnik, T. (2018), "An Analysis of Transiting Hot Jupiters Observed with K2: WASP-55b and WASP-75b", Publications of the Astronomical Society of the Pacific, 130 (985): 034401, arXiv:1802.02132, Bibcode:2018PASP..130c4401C, doi:10.1088/1538-3873/aaa33e, S2CID 119077382
- ^ a b c Bonfanti, A.; Ortolani, S.; Nascimbeni, V. (2016), "Age consistency between exoplanet hosts and field stars", Astronomy & Astrophysics, 585: A5, arXiv:1511.01744, Bibcode:2016A&A...585A...5B, doi:10.1051/0004-6361/201527297, S2CID 53971692
- ^ "BD-11 5929", SIMBAD, Centre de données astronomiques de Strasbourg
- ^ Gómez Maqueo Chew, Y.; Faedi, F.; Pollacco, D.; Brown, D. J. A.; Doyle, A. P.; Collier Cameron, A.; Gillon, M.; Lendl, M.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Wheatley, P. J.; Busuttil, R.; Liebig, C.; Anderson, D. R.; Armstrong, D. J.; Barros, S. C. C.; Bento, J.; Bochinski, J.; Burwitz, V.; Delrez, L.; Enoch, B.; Fumel, A.; Haswell, C. A.; Hébrard, G.; Hellier, C.; Holmes, S.; Jehin, E.; Kolb, U.; et al. (2013), "Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii", Astronomy & Astrophysics, 559: A36, arXiv:1307.6532, Bibcode:2013A&A...559A..36G, doi:10.1051/0004-6361/201322314, S2CID 1008674
- ^ Sandford, Emily; Espinoza, Néstor; Brahm, Rafael; Jordán, Andrés (2019), "Estimation of singly-transiting K2 planet periods with Gaia parallaxess", Monthly Notices of the Royal Astronomical Society, 489 (3): 3149–3161, arXiv:1908.08548, Bibcode:2019MNRAS.489.3149S, doi:10.1093/mnras/stz2348, S2CID 201645337
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