Planet LHS 1140 b

Name LHS 1140 b
Planet Status Confirmed
Discovered in 2017
Mass 0.0209 ( -0.00573 +0.00573 ) MJ
Mass*sin(i)
Semi-Major Axis 0.0875 (± 0.0041) AU
Orbital Period 24.73712 (± 0.00025) day
Eccentricity 0.29 ( -0.29 +0.0 )
ω
Tperi
Radius 0.128 ( -0.0089 +0.0089 ) RJ
Inclination 89.912 (± 0.07) deg
Update 2017-05-02
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2456915.6997 (± 0.0054) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 5.34 (± 1.1) m/s
Calculated temperature 230.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

LHS 1140
Name LHS 1140
Distance 12.47 (± 0.42) pc
Spectral type M4.5
Apparent magnitude V 14.15
Mass 0.146 (± 0.019) MSun
Age 5.0 ( -0.0 +8.0 ) Gyr
Effective temperature 3131.0 (± 100.0) K
Radius 0.186 (± 0.013) RSun
Metallicity [Fe/H] -0.24 (± 0.1)
Detected Disc
Magnetic Field
RA2000 00:44:59.0
Dec2000 -15:16:17
Alternate Names
Planetary system
2 planets

More data


Related publications

Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs
2020 MIGUEL Y., CRIDLAND A., ORMEL C., FORTNEY J. & IDA S.
MNRAS, 491, 1998
paper  arxiv  

Characterizing Exoplanet Habitability
2019 KOPPARAPU R., WOLF E. & MEADOWS V.
Book chapter for "Planetary Astrobiology"
arxiv  

Transition from eyeball to snowball driven by sea-ice drift on tidally locked terrestrial planets
2019 YANG J., JI W. & ZENG Y.
Nature Astronomy, in press
paper  

Simultaneous Optical Transmission Spectroscopy of a Terrestrial, Habitable-Zone Exoplanet with Two Ground-Based Multi-Object Spectrographs
2019 DIAMOND-LOWE H., BERTA-THOMPSON Z., CHARBONNEAU D., DITTMANN J. & KEMPTON E.
Astron. J., submitted
arxiv  

Detectability of atmospheric features of Earth-like planets in the habitable zone around M dwarfs
2019 WUNDERLICH F., GODOLT M., GRENFELL J., STÄDT S., SMITH A. et al.
Astron. & Astrophys., 624, A49
paper  arxiv

What factors affect the duration and outgassing of the terrestrial magma ocean?
2019 NIKOLAOU A., KAYTAL N., TOSI N., GODOLT M., GRENFELL J. & RAUER H.
ApJ, submitted
arxiv  

A second planet with an Earth-like composition orbiting the nearby M dwarf LHS 1140
2019 MENT, K., DITTMANN, J., ASTUDILLO-DEFRU, N., CHARBONNEAU, D., IRWIN, J. et al.
Astron. J., 157, 32
paper  arxiv  ADS  

A search for technosignatures from TRAPPIST-1, LHS 1140, and 10 planetary systems in the Kepler field with the Green Bank Telescope at 1.15-1.73 GHz
2019 PINCHUK P., MARGOT J.-L., GREENBERG A., AYALDE Th., BLOXHAM Ch. et al.
Astron. J., 157, 122
paper  arxiv  

The Impact of Stellar Distances on Habitable Zone Planets
2018 S. KANE
ApJL, 861, L21
arxiv    ADS  

Habitability of exoplanet waterworlds
2018 KITE E. & FORD E.
ApJ, 864, 75
arxiv   paper  

Minimizing the bias in exoplanet detection - application to radial velocities of LHS 1140
2018 FENG, F., TUOMI, M. & H. JONES
MNRAS, submitted
arxiv  paper   ADS  

Hydrohalite Salt-albedo Feedback Could Cool M-dwarf Planets
2018 SHIELDS, A. & R. CARNS
ApJ, 867, 11
paper   arxiv   ADS  

A temperate rocky super-Earth transiting a nearby cool star
2017 DITTMANN J., IRWIN J., CHARBONNEAU D., BONFILS X., ASTUDILLO-DEFRU N., et al.
Nature, 544, 333
paper  arxiv  ADS