WASP-60

Star in the constellation Pegasus From Wikipedia, the free encyclopedia

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.[2] 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.[4]

Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
WASP-60 / Morava
Observation data
Epoch J2000      Equinox J2000
Constellation Pegasus
Right ascension 23h 46m 39.9747s[1]
Declination 31° 09 21.3721[1]
Apparent magnitude (V) 12.18
Characteristics
Evolutionary stage Main sequence
Spectral type F9[2]
Astrometry
Radial velocity (Rv)-26.604[1] km/s
Proper motion (μ) RA: 30.262[1] mas/yr
Dec.: −5.852[1] mas/yr
Parallax (π)2.2916±0.0397 mas[1]
Distance1,420 ± 20 ly
(436 ± 8 pc)
Details[2]
Mass1.229±0.026 M
Radius1.401±0.066 R
Surface gravity (log g)4.31±0.11 cgs
Temperature6105±50 K
Metallicity [Fe/H]0.26±0.07 dex
Rotation34.8±2.7 d
Rotational velocity (v sin i)3.8±0.6 km/s
Age1.7±0.5 Gyr
Other designations
Morava, Gaia DR2 2868528637464028160, TYC 2767-1746-1, 2MASS J23463997+3109213[3]
Database references
SIMBADdata
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The star was named Morava in 2019 by Serbian amateur astronomers as part of the NameExoWorlds contest, after the Morava River in Serbia.[5]

A multiplicity survey in 2015 did not detect any stellar companions to WASP-60.[6]

Planetary system

In 2012 a transiting hot Jupiter planet b was detected on a tight, circular orbit.[7] The planet was named Vlasina by Serbian astronomers in December 2019, after the Vlasina River, a tributary of the Morava.[8]

Its equilibrium temperature is 1479±35 K.[2]

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°.[2]

More information Companion (in order from star), Mass ...
The WASP-60 planetary system[2]
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
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References

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