Planet K2-55 b

Name K2-55 b
Planet Status Confirmed
Discovered in 2018
Mass 0.138 (± 0.0167) MJ
Mass*sin(i)
Semi-Major Axis 0.0347 (± 0.001) AU
Orbital Period 2.849275 (± 2.7e-05) day
Eccentricity 0.124 (± 0.055)
ω 195.0 ( -37.0 +32.0 ) deg
Tperi
Radius 0.3952 (± 0.027) RJ
Inclination 88.0 (± 1.0) deg
Update 2018-04-17
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2456983.4229 (± 0.0004) JD
Secondary transit
λ
Impact Parameter b 0.37 ( -0.2 +0.15 )
Time Vr=0
Velocity Semiamplitude K 25.8 (± 2.6) m/s
Calculated temperature 900.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

K2-55
Name K2-55
Distance
Spectral type
Apparent magnitude V 13.6
Mass 0.688 (± 0.07) MSun
Age
Effective temperature 4300.0 (± 100.0) K
Radius 0.715 (± 0.043) RSun
Metallicity [Fe/H] 0.376 (± 0.095)
Detected Disc
Magnetic Field
RA2000 22:15:00.0
Dec2000 -17:15:03
Alternate Names
Planetary system 1 planet

More data


Related publications

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars III: A High Mass & Low Envelope Fraction for the Warm Neptune K2-55b
2018 DRESSING C., SINUKOFF E., FULTON B., LOPEZ E., BEICHMAN Ch. et al.
ApJ, 156, 70
arxiv   paper