Temperature
5051.8 K
5022 to 5200
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Stellar HostProfile
K2-273
Unclassified star • 308.1 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 175233369
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
0.84 Msun
0.84 to 0.90
Radius
0.87 Rsun
0.80 to 0.87
Luminosity
-0.35 log(Lsun)
-0.36 to -0.35
Distance
308.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.87 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-273
0.87 R☉
System Layout
Known planets
1 planets linked to this host
K2-273 b
Transit
◌
Discovery
2018
Period
11.72 days
Radius
3.05 R⊕
Mass
—
Eq. Temp
849 K
K2-273 and Its Neptune-Like Planet
K2-273 is a star 1000 light-years away with one known planet. The host star has a mass of 0.843 solar masses and a radius of 0.87 solar radii, both smaller than the Sun's. Its temperature is 5050 K, cooler than the Sun's.
The system's only listed planet is K2-273 b, a Neptune-like world discovered by transit in 2018. It orbits every 11.7 days and has a radius of 3.05 Earth radii, larger than Earth's. A transit occurs when a planet crosses in front of its star from our viewpoint, dimming the star slightly; repeated dips reveal the orbital period.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 308.1 | Pope et al. 2016 | TICv8 |
| — | — | — | — | — | — | 308.1 | Barros et al. 2016 | TICv8 |
| — | — | 0.86 | — | — | — | 308.1 | Petigura et al. 2018 | TICv8 |
| 5161 | 0.89 | 0.85 | — | — | — | 308.1 | Castro-González et al. 2022 | TICv8 |
| — | — | 0.80 | — | — | — | 308.1 | Libralato et al. 2016 | TICv8 |
| — | — | 0.87 | — | — | — | 308.1 | Kruse et al. 2019 | TICv8 |
| 5051.8 | 0.84 | 0.87 | — | -0.35 | — | 308.1 | TICv8 | TICv8 |
| 5022 | — | 0.87 | — | -0.36 | — | 308.1 | Gaia DR2 | TICv8 |
| 5170 | — | 0.84 | — | — | — | 308.1 | Yu et al. 2018 | TICv8 |
| 5200 | 0.90 | 0.84 | — | — | — | 308.1 | Livingston et al. 2018 | TICv8 |