Temperature
3326 K
3326 to 3802.1
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Stellar HostProfile
K2-91
Unclassified star • 62.58 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
TIC: TIC 56520147
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
0.35 Msun
0.29 to 0.38
Radius
0.36 Rsun
0.28 to 0.36
Luminosity
-1.84 log(Lsun)
single adopted value
Distance
62.58 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.36 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-91
0.36 R☉
System Layout
Known planets
1 planets linked to this host
K2-91 b
Transit
◌
Discovery
2016
Period
1.42 days
Radius
1.10 R⊕
Mass
—
Eq. Temp
—
K2-91 and Its Earth-Like Planet
K2-91 is a star 204 light-years from us with a single known planet in its system. The host star has a mass of 0.348 solar masses, a radius of 0.362 solar radii, and a temperature of 3330 K, making it less massive, smaller, and cooler than the Sun.
The one known planet, K2-91 b, was discovered in 2016 by the transit method, which detects the slight dimming caused when a planet crosses in front of its star from our vantage point. K2-91 b is classified as Earth-like, meaning its radius stays within 1.5 times Earth's radius, and it measures 1.1 Earth radii. It completes an orbit every 1.42 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3622 | 0.29 | 0.28 | — | — | — | 62.58 | Crossfield et al. 2016 | TICv8 |
| — | — | — | — | — | — | 62.58 | Barros et al. 2016 | TICv8 |
| 3802.1 | — | — | — | — | — | 62.58 | Gaia DR2 | TICv8 |
| 3326 | 0.35 | 0.36 | — | -1.84 | — | 62.58 | TICv8 | TICv8 |
| 3488.9 | 0.38 | 0.32 | — | — | — | 62.58 | Dressing et al. 2017 | TICv8 |
| — | — | 0.28 | — | — | — | 62.58 | Kruse et al. 2019 | TICv8 |