Planet GJ 357 b

Name GJ 357 b
Planet Status Confirmed
Discovered in 2019
Mass 0.006566 (± 0.00101) MJ +
Mass*sin(i)
Semi-Major Axis 0.033 (± 0.001) AU +
Orbital Period 3.93086 (± 4e-05) day +
Eccentricity 0.047 ( -0.047 +0.059 ) +
ω 220.0 (± 70.0) deg
Tperi 2458517.99912 ( -0.00057 +0.00056 ) JD
Radius 0.10411 (± 0.0033) RJ
Inclination 88.496 ( -0.043 +0.025 ) deg
Update 2019-09-04
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2458517.9994 (± 0.0001) JD
Secondary transit
λ
Impact Parameter b 0.529 ( -0.01 +0.005 )
Time Vr=0
Velocity Semiamplitude K 1.84 (± 0.23) m/s +
Calculated temperature 525.0 (± 10.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names TOI-562.01

Star

GJ 357
Name GJ 357
Distance 9.444 (± 0.005) pc
Spectral type M2.5 V
Apparent magnitude V
Mass 0.342 (± 0.011) MSun
Age
Effective temperature 3505.0 (± 51.0) K
Radius 0.337 (± 0.015) RSun
Metallicity [Fe/H] -0.12 (± 0.16)
Detected Disc
Magnetic Field
RA2000 09:36:01.6
Dec2000 -21:39:39
Alternate Names L 678-39, Gliese 357, TOI 562
Planetary system
3 planets

More data


Related publications

A planetary system around the nearby M dwarf Gl 357 including a transiting hot Earth-sized planet optimal for atmospheric characterisation
2019 LUQUE R., PALLE E., KOSSALOWSKI D., DREIZLER S., KEMMER J. et al.
Astron. & Astrophys., 628, A39
paper  arxiv  

Frequency of planets orbiting M dwarfs in the Solar neighbourhood
2019 TUOMI M., JONES H., ANGLADA-ESCUDE G., BUTLER P., ARRIAGADA P. et al.
ApJ. Suppl., submitted
arxiv  

GJ 357: A low-mass planetary system uncovered by precision radial-velocities and dynamical simulations
2019 JENKINS J., POZUELOS J., TUOMI M., BERDIÑAS Z., DIAZ M. et al.
MNRAS, in press
paper  arxiv