KELT-24

KELT-24
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Major
KELT-24
Right ascension 10h 47m 38.35063s
Declination +71° 39′ 21.1525″
Apparent magnitude (V) 8.33
KELT-24B
Right ascension 10h 47m 38.38264s
Declination +71° 39′ 19.1482″
Characteristics
KELT-24
Evolutionary stage main sequence
Spectral type F5
Variable type planetary transit
KELT-24B
Evolutionary stage main sequence
Spectral type M + M?
Variable type eclipsing
Astrometry
KELT-24
Radial velocity (Rv)−5.54±0.24 km/s
Proper motion (μ) RA: −56.061 mas/yr
Dec.: −34.526 mas/yr
Parallax (π)10.3218±0.0180 mas
Distance316.0 ± 0.6 ly
(96.9 ± 0.2 pc)
Absolute magnitude (MV)+3.47
KELT-24B
Proper motion (μ) RA: −49.897 mas/yr
Dec.: −37.516 mas/yr
Parallax (π)10.6799 ± 0.0892 mas
Distance305 ± 3 ly
(93.6 ± 0.8 pc)
Details
KELT-24
Mass1.31 M☉
Radius1.51 R☉
Luminosity3.54 L☉
Surface gravity (log g)4.19 cgs
Temperature6,437 K
Metallicity [Fe/H]0.17 dex
Rotation~4 days
Rotational velocity (v sin i)19.7 km/s
Age2.8 Gyr
B
Mass0.52 M☉
Radius0.48 R☉
Luminosity0.037 L☉
Surface gravity (log g)4.78 cgs
Temperature3,630 K
Metallicity [Fe/H]0.30 dex
Age2.8 Gyr
C
Mass0.51 M☉
Radius0.49 R☉
Luminosity0.038 L☉
Surface gravity (log g)4.77 cgs
Temperature3,640 K
Metallicity [Fe/H]−0.31 dex
Age2.8 Gyr
Other designations
MASCARA-3, KELT-24, HD 93148, HIP 52796
Database references
SIMBADdata
B

KELT-24 (HD 93148, MASCARA-3) is a multiple star system in the constellation Ursa Major at a distance of approximately 316 light-years (about 96.9 parsecs) from Sun. The apparent magnitude of the primary star is +8.33. The star's age is estimated to be about 2.8 billion years. As an F-type main-sequence star, it is similar to the Sun, but slightly hotter, larger, and more luminous.

KELT-24 has a single known exoplanet, a hot Jupiter only 11 R☉ from the star.

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