Temperature
4695 K
4638 to 4946.9
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Stellar HostProfile
K2-102
Unclassified star • 188.2 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 175262071
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: Mann et al. 2017 • System source: TICv8
Mass
0.77 Msun
0.74 to 0.77
Radius
0.71 Rsun
0.63 to 0.77
Age
0.79 Gyr
single adopted value
Luminosity
-0.66 log(Lsun)
-0.66 to -0.61
Distance
188.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.71 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-102
0.71 R☉
System Layout
Known planets
1 planets linked to this host
K2-102 b
Transit
◌
Discovery
2016
Period
9.92 days
Radius
1.30 R⊕
Mass
—
Eq. Temp
—
K2-102 b: A Close-Knit Planet Around a Cool Orange Star
K2-102 is a K5 star located 614 light-years away. As a K-type star, it belongs to a temperature class cooler than the Sun's G-type. The star's measured mass is 0.77 solar masses, its radius is 0.71 solar radii, and its temperature is 4700 K. Its age is 0.79 billion years.
One planet orbits this host. K2-102 b was discovered in 2016 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. The planet completes an orbit every 9.92 days.
K2-102 b has a radius of 1.3 Earth radii and is classified as Earth-like. That classification compares size with Earth: an Earth-like planet's radius stays within 1.5 times Earth's radius. The reported radius estimate for K2-102 b is 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 Gravitystable
Metallicitystable
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4695 | 0.77 | 0.71 | 0.79 | -0.66 | — | 188.2 | Mann et al. 2017 | TICv8 |
| — | — | — | — | — | K5 | 188.2 | Adams et al. 2002 | TICv8 |
| 4946.9 | — | 0.63 | — | -0.66 | — | 188.2 | Gaia DR2 | TICv8 |
| 4638 | 0.74 | 0.77 | — | -0.61 | — | 188.2 | TICv8 | TICv8 |
| — | — | — | — | — | — | 188.2 | Rizzuto et al. 2017 | TICv8 |