Temperature
5110 K
5110 to 5375.5
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Stellar HostProfile
K2-180
K2 V • 203.9 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 366411016
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: Korth et al. 2019 • System source: TICv8
Mass
0.71 Msun
0.67 to 0.93
Radius
0.69 Rsun
0.64 to 0.72
Age
9.50 Gyr
7.50 to 9.50
Distance
203.9 pc
single adopted value
Spectral Type
K2 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.69 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-180
0.69 R☉
System Layout
Known planets
1 planets linked to this host
K2-180 b
Transit
◌
Discovery
2018
Period
8.87 days
Radius
2.47 R⊕
Mass
11.41 M⊕
Eq. Temp
797.5 K
K2-180 and Its Super-Earth
K2-180 is a K2 V star, a main-sequence dwarf cooler and redder than the Sun, located 665 light-years away. Its measured age is 9.5 billion years, its mass is 0.71 solar masses, its radius is 0.69 solar radii, and its temperature is 5110 K. These figures indicate a star somewhat smaller, less massive, and cooler than the Sun. One planet is known to orbit this star.
K2-180 b is a Super-Earth discovered by the transit method in 2018, when the planet's passage in front of the star from our viewpoint produced a small dip in observed brightness. The planet completes an orbit every 8.87 days. Its radius is 2.47 Earth radii, larger than Earth's, and its mass is 11.4 Earth masses, also larger than Earth's. Its mean density is 4.19 g/cm³, 0.761 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5263 | 0.73 | 0.68 | — | — | — | 203.9 | Mayo et al. 2018 | TICv8 |
| 5368 | — | 0.70 | — | — | — | 203.9 | ExoFOP | TICv8 |
| — | — | 0.69 | — | — | — | 203.9 | Kruse et al. 2019 | TICv8 |
| — | — | 0.65 | — | — | — | 203.9 | Petigura et al. 2018 | TICv8 |
| 5110 | 0.71 | 0.69 | 9.50 | — | K2 V | 203.9 | Korth et al. 2019 | TICv8 |
| — | — | — | — | — | — | 203.9 | Pope et al. 2016 | TICv8 |
| 5306 | 0.72 | 0.72 | — | — | — | 203.9 | Castro-González et al. 2022 | TICv8 |
| 5365 | 0.73 | 0.72 | 7.50 | -0.41 | — | 203.9 | Thygesen et al. 2023 | TICv8 |
| 5375.5 | — | 0.69 | — | -0.45 | — | 203.9 | Gaia DR2 | TICv8 |
| 5368 | 0.93 | 0.70 | — | -0.44 | — | 203.9 | TICv8 | TICv8 |
| 5358 | 0.72 | 0.72 | — | — | — | 203.9 | Livingston et al. 2018 | TICv8 |
| 5166 | 0.67 | 0.64 | — | — | — | 203.9 | Howard et al. 2025 | TICv8 |