Planet K2-18 c

Name K2-18 c
Planet Status Confirmed
Discovered in 2017
Mass 0.0236 ( -0.00418 +0.00418 ) MJ
Mass*sin(i) 0.0236 ( -0.00418 +0.00418 ) MJ
Semi-Major Axis 0.06 (± 0.003) AU
Orbital Period 8.962 (± 0.008) day
Eccentricity 0.47 ( -nan +0.0 )
ω
Tperi
Radius
Inclination
Update 2017-07-17
Detection Method Radial Velocity
Mass Detection Method
Radius Detection Method
Molecules
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 4.63 (± 0.72) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

K2-18
Name K2-18
Distance 34.0 (± 4.0) pc
Spectral type
Apparent magnitude V
Mass 0.413 (± 0.043) MSun
Age
Effective temperature 3503.0 (± 60.0) K
Radius 0.394 (± 0.038) RSun
Metallicity [Fe/H] 0.09 (± 0.09)
Detected Disc
Magnetic Field
RA2000 11:30:14.5
Dec2000 +07:35:18
Alternate Names EPIC 201912552
Planetary system
2 planets

More data


Related publications

The CARMENES search for exoplanets around M dwarfs: A low-mass planet in the temperate zone of the nearby K2-18
2018 PAULA S., HENNING Th., MARTIN K., TRIFON T., ZECHMEISTER L., et al.
Astron. J., accepted
arxiv  

The CARMENES Search for Exoplanets around M Dwarfs: A Low-mass Planet in the Temperate Zone of the Nearby K2-18
2018 SARKIS P., HENNING Th., KÜRSTER M., TRIFONOV T., ZECHMEISTER M. et al.
Astron. J., 155, 257
arxiv  

Characterization of the K2-18 multi-planetary system with HARPS: A habitable zone super-Earth and discovery of a second, warm super-Earth on a non-coplanar orbit
2017 CLOUTIER R., ASTUDILLO-DEFRU N., DOYON R., BONFILS X., ALMENARA J. et al.
Astron. & Astrophys., 608, A35
paper  arxiv   ADS  

Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation
2015 MONTET B., MORTON T., FOREMAN-MACKEY D., JOHNSON J., HOGG D. et 4 additional authors
ApJ, 809, 25
arxiv   paper   ADS