Planet GJ 1252 b

Name GJ 1252 b
Planet Status Confirmed
Discovered in 2018
Mass 0.00658 (± 0.00176) MJ
Mass*sin(i)
Semi-Major Axis 0.00916 (± 0.00076) AU
Orbital Period 0.5182349 ( -5e-06 +6.3e-06 ) day
Eccentricity
ω
Tperi
Radius 0.10643 (± 0.0066) RJ
Inclination 85.0 ( -1.8 +2.1 ) deg
Update 2019-12-13
Detection Method Primary Transit
Mass Detection Method Spectrum
Radius Detection Method Primary Transit
Primary transit 2458668.09739 ( -0.00029 +0.00032 ) JD
Secondary transit
λ
Impact Parameter b 0.44 ( -0.17 +0.12 )
Time Vr=0
Velocity Semiamplitude K 3.17 (± 0.85) m/s
Calculated temperature 997.0 ( -49.0 +53.0 ) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

GJ 1252
Name GJ 1252
Distance 20.38 (± 0.02) pc
Spectral type
Apparent magnitude V 12.0
Mass 0.381 (± 0.019) MSun
Age
Effective temperature 3458.0 ( -133.0 +140.0 ) K
Radius 0.391 (± 0.02) RSun
Metallicity [Fe/H] 0.1 (± 0.1)
Detected Disc
Magnetic Field
RA2000 20:27:42.0
Dec2000 -56:27:25
Alternate Names
Planetary system 1 planet

More data


Related publications

GJ 1252 b: A 1.2 R⊕ planet transiting an M-dwarf at 20.4 pc
2020 SHPORER A., COLLINS K., ASTUDILLO-DEFRU N., IRWIN J., BONFILS X. et al.
ApJ. Letters, 890, L7
paper  arxiv