Temperature
3660 K
3528.3 to 3820
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Stellar HostProfile
K2-104
Unclassified star • 189.3 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 175194958
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
0.51 Msun
0.43 to 0.51
Radius
0.48 Rsun
0.30 to 0.56
Age
0.79 Gyr
single adopted value
Luminosity
-1.43 log(Lsun)
-1.43 to -1.36
Distance
189.3 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.48 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-104
0.48 R☉
System Layout
Known planets
1 planets linked to this host
K2-104 b
Transit
◌
Discovery
2016
Period
1.97 days
Radius
1.79 R⊕
Mass
—
Eq. Temp
798 K
K2-104: A Cool Red Dwarf and Its Super-Earth
K2-104 is an M2.5e star located 617 light-years away, and it hosts one known planet. The star is a small, cool red dwarf with a mass of 0.51 solar masses, a radius of 0.48 solar radii, and a temperature of 3660 K. Its reported age is 0.79 billion years, and its mass, radius, and temperature estimates are all smaller or cooler than the Sun's.
The planet K2-104 b is a Super-Earth discovered by transit in 2016. It orbits its star with an orbital period of 1.97 days, and its radius of 1.79 Earth radii is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | 0.56 | — | — | — | 189.3 | Kruse et al. 2019 | TICv8 |
| 3578 | 0.50 | 0.50 | — | -1.43 | — | 189.3 | TICv8 | TICv8 |
| 3528.3 | — | 0.56 | — | -1.36 | — | 189.3 | Gaia DR2 | TICv8 |
| — | — | — | — | — | M2.5e | 189.3 | Adams et al. 2002 | TICv8 |
| 3546.5 | 0.43 | 0.49 | — | — | — | 189.3 | Dressing et al. 2017 | TICv8 |
| 3660 | 0.51 | 0.48 | 0.79 | -1.43 | — | 189.3 | Mann et al. 2017 | TICv8 |
| — | — | — | — | — | — | 189.3 | Rizzuto et al. 2017 | TICv8 |
| 3820 | — | 0.48 | — | — | — | 189.3 | Yu et al. 2018 | TICv8 |
| — | — | — | — | — | — | 189.3 | Pope et al. 2016 | TICv8 |
| 3712 | 0.51 | 0.48 | — | — | — | 189.3 | Castro-González et al. 2022 | TICv8 |
| — | — | 0.30 | — | — | — | 189.3 | Libralato et al. 2016 | TICv8 |