Temperature
4712.9 K
4712.9 to 4882.6
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Stellar HostProfile
K2-270
Unclassified star • 280.5 pc
Records
10
literature rows
Planets
2
system count
References
9
distinct source labels
TIC: TIC 293375721
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
0.75 Msun
0.75 to 0.85
Radius
0.83 Rsun
0.73 to 0.83
Luminosity
-0.52 log(Lsun)
-0.56 to -0.52
Distance
280.5 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.83 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-270
0.83 R☉
System Layout
Known planets
2 planets linked to this host
Planets Around the Cool Dwarf K2-270
K2-270 is a star 915 light-years away with two known planets, both detected by transit in 2018. A transit occurs when a planet crosses in front of its star from our viewpoint, producing a small dip in observed brightness that repeats with each orbit. The host star has a mass of 0.754 solar masses, a radius of 0.826 solar radii, and a temperature of 4710 K, all smaller or cooler than the Sun's corresponding values.
K2-270 b is classified as Earth-like, with a radius of 1.38 Earth radii that is larger than Earth's. It completes an orbit every 1.54 days, the shortest year among the listed planets.
K2-270 c is Neptune-like, with a radius of 2.95 Earth radii, also larger than Earth's and the largest among the listed planets. Its orbital period is 4.4 days, the longest year among the listed planets.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
8
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | 0.82 | — | — | — | 280.5 | Petigura et al. 2018 | TICv8 |
| — | — | 0.73 | — | — | — | 280.5 | Kruse et al. 2019 | TICv8 |
| 4882.6 | — | 0.73 | — | -0.56 | — | 280.5 | Gaia DR2 | TICv8 |
| — | — | 0.73 | — | — | — | 280.5 | Kruse et al. 2019 | TICv8 |
| — | — | — | — | — | — | 280.5 | Barros et al. 2016 | TICv8 |
| — | — | 0.82 | — | — | — | 280.5 | Petigura et al. 2018 | TICv8 |
| 4810 | — | 0.77 | — | — | — | 280.5 | Yu et al. 2018 | TICv8 |
| — | — | — | — | — | — | 280.5 | Pope et al. 2016 | TICv8 |
| 4712.9 | 0.75 | 0.83 | — | -0.52 | — | 280.5 | TICv8 | TICv8 |
| 4877 | 0.85 | 0.77 | — | — | — | 280.5 | Livingston et al. 2018 | TICv8 |