Temperature
5520 K
5388 to 5742
←Back to Stellar Hosts
Stellar HostProfile
K2-225
Unclassified star • 357.8 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 98677125
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
1.48 Msun
0.96 to 1.48
Radius
1.70 Rsun
1.21 to 1.83
Age
0.01 Gyr
single adopted value
Luminosity
0.38 log(Lsun)
0.38 to 0.43
Distance
357.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.70 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-225
1.70 R☉
System Layout
Known planets
1 planets linked to this host
K2-225 b
Transit
◌
Discovery
2018
Period
15.87 days
Radius
3.61 R⊕
Mass
—
Eq. Temp
923 K
K2-225: A Very Young Star With a Neptune-Like Planet
K2-225 is a star located 1170 light-years away, and it hosts one known planet. The star is extremely young, with an age of 0.0121 billion years, placing it in the very young class. Its mass is 1.48 solar masses and its radius is 1.7 solar radii, both larger than the Sun's corresponding values. Its temperature is 5520 K, which is cooler than the Sun's.
The one planet orbiting this star is K2-225 b, a Neptune-like world 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. K2-225 b completes an orbit every 15.9 days and has a radius of 3.61 Earth radii, larger than Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
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 |
|---|---|---|---|---|---|---|---|---|
| 5470.6 | 0.96 | 1.83 | — | 0.43 | — | 357.8 | TICv8 | TICv8 |
| 5733 | 1.11 | 1.21 | — | — | — | 357.8 | Mayo et al. 2018 | TICv8 |
| 5388 | — | 1.81 | — | 0.39 | — | 357.8 | Gaia DR2 | TICv8 |
| 5520 | 1.48 | 1.70 | 0.01 | 0.38 | — | 357.8 | Thygesen et al. 2023 | TICv8 |
| 5742 | 1.27 | 1.70 | — | — | — | 357.8 | Livingston et al. 2018 | TICv8 |