Planet KELT-4 Ab

Detailed information about planet KELT-4 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
KELT-4 Ab
Mass
0.9 ( ± 0.06 ) MJ
Mass*sin(i)
0.878 ( +0.07 -0.067 ) MJ
Semi-Major Axis
0.04321 ( +0.00085 -0.00077 ) AU
Orbital Period
2.989594 ( ± 5e-06 ) day
Eccentricity
0.03 ( +0.016 -0.021 )
ω
300.0 ( +110.0 -130.0 ) deg
Tperi
2456190.30201 ( ± 0.00022 ) JD
Radius
1.7 ( ± 0.05 ) RJ
Inclination
83.11 ( +0.48 -0.57 ) deg
Primary transit
—
Secondary transit
2456188.815 ( +0.047 -0.032 ) JD
λ
80.0 ( ± 25.0 ) deg
Impact Parameter b
0.689 ( ± 0.0012 )
Time Vr=0
—
Velocity Semiamplitude K
108.6 ( ± 7.4 ) m/s
Calculated temperature
1827.0 K
Measured temperature
—
Hottest point longitude
—
Surface gravity log(g/gH)
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

See also Planets in Binaries webpage.

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Star

Name
KELT-4 A
Distance
211.0 ( ± 13.0 ) pc
Spectral type
F8IV
Apparent magnitude V
9.98
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
1.204 ( +0.072 -0.063 ) MSun
Age
4.38 ( +0.81 -0.88 ) Gyr
Effective temperature
6207.0 ( ± 76.0 ) K
Radius
1.61 ( +0.078 -0.068 ) RSun
Metallicity [Fe/H]
-0.116 ( +0.067 -0.071 )
Detected Disc
—
Magnetic Field
—
RA2000
10:28:15.0
Dec2000
+25:34:23.5
Alternate Names
BD+26 2091 A, TOI-5384

KELT-4 forms a triple system with a pair of late K dwarf companion stars 328 AUs away. The low-mass pair is separated by 10.3 AUs.

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