Planet KELT-22 Ab

Detailed information about planet KELT-22 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
KELT-22 Ab
Planet Status
Confirmed
Discovered in
2018
Update
2024-09-06
Mass
3.69 ( ± 0.18 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.0248 ( ± 0.0006 ) AU
Orbital Period
1.38665318 ( ± 2.7e-07 ) day
Eccentricity
—
ω
—
Tperi
—
Radius
1.2 ( ± 0.06 ) RJ
Inclination
85.2 ( ± 1.1 ) deg
Detection Method
Primary Transit
Mass Meas. Method
—
Radius Meas. Method
Primary Transit
Primary transit
2457288.8585 JD
Secondary transit
—
λ
11.0 ( +32.0 -20.0 ) deg
Impact Parameter b
0.4 ( ± 0.08 )
Time Vr=0
—
Velocity Semiamplitude K
645.0 ( ± 7.0 ) m/s
Calculated temperature
1880.0 ( ± 55.0 ) K
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
WASP-173 Ab, TOI-241.01
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

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Star

Name
KELT-22 A
Distance
232.98 ( ± 1.7765 ) pc
Spectral type
G3V
Apparent magnitude V
11.3
Mass
1.05 ( ± 0.08 ) MSun
Age
5.0 ( +5.0 -0.0 ) Gyr
Effective temperature
5700.0 ( ± 150.0 ) K
Radius
1.11 ( ± 0.05 ) RSun
Metallicity [Fe/H]
0.16 ( ± 0.14 )
Detected Disc
—
Magnetic Field
—
RA2000
23:36:40.0
Dec2000
-34:36:41.0
Alternate Names
WASP-173 A, TOI-241

16 Mar 2018 WASP-173 A is the brighter component of the binary star WDS23366-3437. The two components have V = 11.3 and 12.1 and are separated by 6 arcsecs (Hellier et al. 2019). The secondary component, a mid G dwarf (spT G4V), lies 1442 AUs away (Michel & Mugrauer 2024).

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