Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pegasus[1] |
Right ascension | 23h 46m 39.9747s[2] |
Declination | +31° 09′ 21.3744″[2] |
Apparent magnitude (V) | 12.18[3] |
Characteristics | |
Evolutionary stage | Main sequence[2] |
Spectral type | F9[4] |
Astrometry | |
Radial velocity (Rv) | −26.38[2] km/s |
Proper motion (μ) | RA: +30.247[2] mas/yr Dec.: −6.005[2] mas/yr |
Parallax (π) | 2.3243±0.0194 mas[2] |
Distance | 1,400 ± 10 ly (430 ± 4 pc) |
Details[4] | |
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, Gaia DR3 2868528637464028160, TYC 2767-1746-1, 2MASS J23463997+3109213[5] | |
Database references | |
SIMBAD | data |
WASP-60 is a F-type main-sequence star about 1420 light-years away. The stars 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]
The star was named Morava in 2019 by Serbian amateur astronomers as part of the NameExoWorlds contest, after the Morava River in Serbia.[7]
A multiplicity survey in 2015 did not detect any stellar companions to WASP-60.[8]
In 2012 a transiting hot Jupiter planet b 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 | 86.05±0.57° | 1.225±0.069 RJ |