Astronomy:WASP-75
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Short description: Star in the constellation Aquarius
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 49m 32.5677s[1] |
| Declination | −10° 40′ 31.9275″[1] |
| Apparent magnitude (V) | 11.299[2] |
| Characteristics | |
| Evolutionary stage | Main sequence[citation needed] |
| Spectral type | F9[3] |
| Astrometry | |
| Radial velocity (Rv) | 2.7±0.8[4] km/s |
| Proper motion (μ) | RA: 45.892[4] mas/yr Dec.: 15.428[4] mas/yr |
| Parallax (π) | 3.3387 ± 0.0202[4] mas |
| Distance | 977 ± 6 ly (300 ± 2 pc) |
| Details[2] | |
| Mass | 1.18 M☉ |
| Radius | 1.39 R☉ |
| Luminosity | 1.1±0.01[5] L☉ |
| Surface gravity (log g) | 4.233 cgs |
| Temperature | 6090 K |
| Metallicity [Fe/H] | 0.07±0.09[3] dex |
| Rotation | 11.2±1.5 d[3] |
| Age | 2.9±0.2[5] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
WASP-75 is a F-type main-sequence star about 980 light-years away. The star is much younger than the Sun at approximately 2.9±0.2 billion years.[5] WASP-75 is similar to the Sun in its concentration of heavy elements.[3]
Planetary system
In 2013 a transiting hot Jupiter planet b was detected on a tight, circular orbit,[6] and the planet was confirmed in 2018.[3] Its equilibrium temperature is 1,688 K.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.08±0.05[3] MJ | 0.0377±0.0006[3] | 2.484193 | <0.1 | 81.96±0.02[3]° | 1.31±0.02[3] RJ |
References
- ↑ 1.0 1.1 1.2 "BD-11 5929". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=BD-11+5929.
- ↑ 2.0 2.1 Petigura, Erik A.; Crossfield, Ian J. M.; Isaacson, Howard; Beichman, Charles A.; Christiansen, Jessie L.; Dressing, Courtney D.; Fulton, Benjamin J.; Howard, Andrew W. et al. (2017), "Planet Candidates from K2 Campaigns 5–8 and Follow-up Optical Spectroscopy", The Astronomical Journal 155: 21, doi:10.3847/1538-3881/aa9b83
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 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, doi:10.1088/1538-3873/aaa33e, Bibcode: 2018PASP..130c4401C
- ↑ 4.0 4.1 4.2 4.3 Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
- ↑ 5.0 5.1 5.2 Bonfanti, A.; Ortolani, S.; Nascimbeni, V. (2016), "Age consistency between exoplanet hosts and field stars", Astronomy & Astrophysics 585: A5, doi:10.1051/0004-6361/201527297, Bibcode: 2016A&A...585A...5B
- ↑ Gómez Maqueo Chew, Y.; Faedi, F.; Pollacco, D.; Brown, D. J. A.; Doyle, A. P.; Collier Cameron, A.; Gillon, M.; Lendl, M. et al. (2013), "Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii", Astronomy & Astrophysics 559: A36, doi:10.1051/0004-6361/201322314, Bibcode: 2013A&A...559A..36G
- ↑ 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, doi:10.1093/mnras/stz2348, Bibcode: 2019MNRAS.489.3149S
Coordinates: 
22h 49m 32.5677s, −10° 40′ 31.9275″
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