Temperature
3565 K
3565 to 3654.5
←Back to Stellar Hosts
Stellar HostProfile
K2-125
Unclassified star • 124.2 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 405673618
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: TICv8 • System source: TICv8
Mass
0.39 Msun
0.39 to 0.49
Radius
0.40 Rsun
0.40 to 0.40
Luminosity
-1.64 log(Lsun)
single adopted value
Distance
124.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.40 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-125
0.40 R☉
System Layout
Known planets
1 planets linked to this host
K2-125 b
Transit
◌
Discovery
2017
Period
21.75 days
Radius
2.18 R⊕
Mass
—
Eq. Temp
—
K2-125 b: A Super-Earth Orbiting a Small, Cool Star
K2-125 is a star 405 light-years away with one known planet, K2-125 b. The host star has a reported mass of 0.387 solar masses and a radius of 0.396 solar radii, both smaller than the Sun's. Its temperature is 3570 K, cooler than the Sun's.
K2-125 b is a Super-Earth discovered in 2017 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods. The planet's radius is 2.18 Earth radii, larger than Earth's, and its orbital period is 21.8 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitystable