Temperature
5835.4 K
5835.4 to 5900
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Stellar HostProfile
K2-205
Unclassified star • 405.3 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 344661825
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
1.05 Msun
0.95 to 1.05
Radius
1.25 Rsun
1.08 to 1.25
Luminosity
0.21 log(Lsun)
0.19 to 0.21
Distance
405.3 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
K2-205
1.25 R☉
System Layout
Known planets
1 planets linked to this host
K2-205 b
Transit
◌
Discovery
2018
Period
26.67 days
Radius
2.00 R⊕
Mass
—
Eq. Temp
—
K2-205 and Its Super-Earth
K2-205 is a star 1320 light-years away with a single known planet, K2-205 b. The host star has a mass of 1.05 solar masses, a radius of 1.25 solar radii, and a temperature of 5840 K. Its reported radius estimate is larger than the Sun's.
K2-205 b is a Super-Earth discovered by transit in 2018. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. The planet completes an orbit every 26.7 days. Its radius is 2 Earth radii, and its reported radius estimate is larger than Earth's. Planet size classes compare radius with Earth's: a Sub-Earth is smaller than Earth, an Earth-like planet stays within 1.5 times Earth's radius, a Super-Earth reaches 2.5 times, a Neptune-like planet reaches 4 times, and a Jupiter-like planet exceeds 4 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5890 | 0.95 | 1.08 | — | — | — | 405.3 | Mayo et al. 2018 | TICv8 |
| 5835.4 | 1.05 | 1.25 | — | 0.21 | — | 405.3 | TICv8 | TICv8 |
| 5900 | — | 1.20 | — | 0.19 | — | 405.3 | Gaia DR2 | TICv8 |
| — | — | 1.20 | — | — | — | 405.3 | Kruse et al. 2019 | TICv8 |