| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pegasus1 |
| Right ascension | 23h 46m 39.9747s2 |
| Declination | +31° 09′ 21.374″2 |
| Apparent magnitude (V) | 12.183 |
| Characteristics | |
| Evolutionary stage | Main sequence2 |
| Spectral type | F94 |
| Astrometry | |
| Radial velocity (Rv) | −26.382 km/s |
| Proper motion (μ) | RA: +30.247 mas/yr2 Dec.: −6.005 mas/yr2 |
| Parallax (π) | 2.3243±0.0194 mas2 |
| Distance | 1,400 ± 10 ly (430 ± 4 pc) |
| Details4 | |
| Mass | 1.229±0.026 M☉ |
| Radius | 1.401±0.066 R☉ |
| Surface gravity (log g) | 4.31±0.11 cgs |
| Temperature | 6105±50 K |
| Metallicity [Fe/H] | 0.26±0.07 dex |
| Rotation | 34.8±2.7 d |
| Rotational velocity (v sin i) | 3.8±0.6 km/s |
| Age | 1.7±0.5 Gyr |
| Other designations | |
| Morava, TOI-6015, TIC 288246496, WASP-60, TYC 2767-1746-1, 2MASS J23463997+31092135 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-60, also named Morava, is a F-type main-sequence star about 1,400 light-years away in the constellation Pegasus. The star's age is much younger than the Sun's at 1.7±0.5 billion years. WASP-60 is enriched in heavy elements, having 180% of the solar abundance of iron. The star does not have noticeable starspot activity, an unexpected observation for a relatively young star.4 The age of WASP-60 determined by different methods is highly discrepant though, and it may actually be an old star which experienced an episode of spin-up in the past.6
A multiplicity survey in 2015 did not detect any stellar companions to WASP-60.7
Nomenclature
The designation WASP-60 comes from the Wide Angle Search for Planets.
This was one of the systems selected to be named in the 2019 NameExoWorlds campaign during the 100th anniversary of the IAU, which assigned each country a star and planet to be named. This system was assigned to Serbia. The approved names were Morava for the star and Vlasina for the planet, after the Morava and Vlasina rivers in Serbia.8
Planetary system
In 2012 a transiting hot Jupiter planet, WASP-60b, was detected on a tight, circular orbit.3 The planet was named Vlasina by Serbian astronomers in December 2019, after the Vlasina River, a tributary of the Morava.9 Its equilibrium temperature is 1479±35 K.4
Measurement of the Rossiter–McLaughlin effect in 2018 revealed WASP-60b is on a retrograde orbit relative to the equatorial plane of the star, orbital obliquity equal to 129±17°.4
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b (Vlasina) | 0.560±0.036 MJ | 0.05548±0.00040 | 4.3050040 | <0.06410 | 86.05±0.57 | 1.225±0.069 RJ |
References
References
- 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.
- 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.
- Hébrard, G.; et al. (2012), "WASP-52b, WASP-58b, WASP-59b, and WASP-60b: Four new transiting close-in giant planets", Astronomy & Astrophysics, 549: A134, arXiv:1211.0810, doi:10.1051/0004-6361/201220363, S2CID 54502046
- Mancini, L.; et al. (2018), "The GAPS programme with HARPS-N at TNG", Astronomy & Astrophysics, 613: A41, arXiv:1802.03859, Bibcode:2018A&A...613A..41M, doi:10.1051/0004-6361/201732234, S2CID 73565379
- "WASP-60". SIMBAD. Centre de données astronomiques de Strasbourg.
- Brown, D. J. A. (2014), "Discrepancies between isochrone fitting and gyrochronology for exoplanet host stars?", Monthly Notices of the Royal Astronomical Society, 442 (2): 1844–1862, arXiv:1406.4402, Bibcode:2014MNRAS.442.1844B, doi:10.1093/mnras/stu950
- Wöllert, Maria; Brandner, Wolfgang; Bergfors, Carolina; Henning, Thomas (2015), "A Lucky Imaging search for stellar companions to transiting planet host stars", Astronomy & Astrophysics, 575: A23, arXiv:1507.01938, Bibcode:2015A&A...575A..23W, doi:10.1051/0004-6361/201424091, S2CID 119250579
- "Approved names". NameExoWorlds. IAU. Retrieved 24 June 2025.
- Srbija je dobila zadatak da predloži i izglasa novo ime za zvezdu WASP-60 i njenu planetu WASP-60b
- Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882.