Temperature
5783 K
5755 to 5920
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Stellar HostProfile
K2-204
Unclassified star • 577.2 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 248351386
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
1.08 Msun
1.01 to 1.08
Radius
1.25 Rsun
1.09 to 1.33
Age
6.50 Gyr
single adopted value
Luminosity
0.20 log(Lsun)
0.20 to 0.27
Distance
577.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.25 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-204
1.25 R☉
System Layout
Known planets
1 planets linked to this host
K2-204 b
Transit
◌
Discovery
2018
Period
7.06 days
Radius
3.17 R⊕
Mass
—
Eq. Temp
1148 K
K2-204 b: A Neptune-Like World in a Distant System
K2-204 is a star located 1,880 light-years from Earth. It is 6.5 billion years old, holds 1.08 solar masses, spans 1.25 solar radii, and has a temperature of 5780 K. Its radius estimate is larger than the Sun's. One planet is known to orbit this star.
That planet, K2-204 b, is a Neptune-like world, a size class that reaches up to four times Earth's radius. It 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. Repeated dips help establish orbital periods. K2-204 b completes an orbit every 7.06 days and has a radius of 3.17 Earth radii, larger than Earth's.
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 |
|---|---|---|---|---|---|---|---|---|
| 5920 | 1.08 | 1.29 | — | 0.27 | — | 577.2 | TICv8 | TICv8 |
| 5783 | 1.08 | 1.25 | 6.50 | 0.20 | — | 577.2 | Thygesen et al. 2023 | TICv8 |
| 5755 | 1.01 | 1.18 | — | — | — | 577.2 | Mayo et al. 2018 | TICv8 |
| 5797.3 | — | 1.33 | — | 0.25 | — | 577.2 | Gaia DR2 | TICv8 |
| — | — | 1.09 | — | — | — | 577.2 | Kruse et al. 2019 | TICv8 |