K2-285 b
Orbiting K2-285
K2-285 b is an exoplanet orbiting the star K2-285, discovered in 2018 using the Transit method. It is a Mini-Neptune world.
Radius
2.59
Earth radii
Mass
9.68
Earth masses
Orbital Period
3.5
days
Distance
155.0
parsecs
Equilibrium Temp
1089
K
Radius (Earth radii)
2.59
Mass (Earth masses)
9.68
Measured
Equilibrium Temperature
1089 K
Parameter source: Palle et al. 2019
Orbital Period
3.472+0.000−0.000days
Semi-Major Axis
0.0382+0.0009−0.0009au
Planet Mass (Earth masses)
9.68+1.21−1.37
Planet Mass (Jupiter masses)
0.0305+0.0038−0.0043
Eccentricity
0.0000
Radial Velocity Semi-Amplitude
4.62+0.58−0.65m/s
Distance from Earth
155.0 pc (~505 ly)
Spectral Type
K2 V
Temperature
4975 K
Mass (Solar)
0.83 M☉
Radius (Solar)
0.79 R☉
Luminosity
Unknown
Planets in System
4
Stars in System
1
Coordinates (RA, Dec)
349.3843°, 1.3002°
Discovery Method
Transit
Discovery Year
2018
Source ID: K2-285 b
K2-285 b orbits K2-285 and was reported in 2018 and was detected with the Transit method.
Published measurements list a radius of 2.59 Earth radii, a mass of 9.68 Earth masses, an orbital period of 3.47 days, and an equilibrium temperature near 1,089 K.
Catalog data places the system at about 155 parsecs from Earth, a host star classified as K2 V, and 4 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open K2-285