Temperature
5003 K
4968 to 5172
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Stellar HostProfile
K2-250
Unclassified star • 414.7 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 98591691
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: Thygesen et al. 2023 • System source: TICv8
Mass
0.81 Msun
0.80 to 0.82
Radius
0.80 Rsun
0.80 to 0.85
Age
8.20 Gyr
single adopted value
Luminosity
-0.44 log(Lsun)
-0.44 to -0.40
Distance
414.7 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.80 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-250
0.80 R☉
System Layout
Known planets
1 planets linked to this host
K2-250 b
Transit
◌
Discovery
2018
Period
4.01 days
Radius
2.71 R⊕
Mass
—
Eq. Temp
1003 K
K2-250 b: A Neptune-Like World in a Distant System
K2-250 is a star located 1350 light-years away, and it hosts one known planet. The star is 8.2 billion years old and has a mass of 0.809 solar masses, a radius of 0.797 solar radii, and a temperature of 5000 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The planet K2-250 b is classified as Neptune-like and was discovered in 2018 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. Its orbital period is 4.01 days, and its radius is 2.71 Earth radii. That radius estimate is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5172 | 0.80 | 0.81 | — | — | — | 414.7 | Livingston et al. 2018 | TICv8 |
| 4968 | 0.82 | 0.85 | — | -0.40 | — | 414.7 | TICv8 | TICv8 |
| 5003 | 0.81 | 0.80 | 8.20 | -0.44 | — | 414.7 | Thygesen et al. 2023 | TICv8 |
| 4980.2 | — | 0.82 | — | -0.43 | — | 414.7 | Gaia DR2 | TICv8 |