Temperature
5170 K
5069.2 to 5181
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Stellar HostProfile
K2-182
Unclassified star • 154.8 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 366631954
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: Akana Murphy et al. 2021 • System source: TICv8
Mass
0.86 Msun
0.82 to 0.88
Radius
0.79 Rsun
0.79 to 0.82
Age
2.07 Gyr
2.07 to 6.20
Luminosity
-0.41 log(Lsun)
-0.41 to -0.39
Distance
154.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.79 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-182
0.79 R☉
System Layout
Known planets
1 planets linked to this host
K2-182 b
Transit
◌
Discovery
2018
Period
4.74 days
Radius
2.71 R⊕
Mass
20.98 M⊕
Eq. Temp
965.8 K
K2-182 b: A Neptune-like World in a One-Planet System
K2-182 is a star located 505 light-years away, and it hosts one known planet. The star is estimated to be 2.07 billion years old, with a mass of 0.865 solar masses and a radius of 0.793 solar radii. Its temperature is 5170 K. The star's reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The system's only known planet is K2-182 b, a Neptune-like planet discovered by transit in 2018. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. K2-182 b has a mass of 21 Earth masses and a radius of 2.71 Earth radii. Its reported mass and radius estimates are both larger than Earth's. The planet completes an orbit every 4.74 days. Its mean density is 5.79 g/cm³, 1.05 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
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5069.2 | — | 0.79 | — | — | — | 154.8 | ExoFOP | TICv8 |
| 5128 | 0.82 | 0.79 | 6.20 | -0.41 | — | 154.8 | Thygesen et al. 2023 | TICv8 |
| 5069.2 | — | 0.82 | — | -0.40 | — | 154.8 | Gaia DR2 | TICv8 |
| 5180.6 | 0.88 | 0.79 | — | -0.39 | — | 154.8 | TICv8 | TICv8 |
| 5159 | 0.85 | 0.79 | — | — | — | 154.8 | Mayo et al. 2018 | TICv8 |
| — | — | 0.82 | — | — | — | 154.8 | Petigura et al. 2018 | TICv8 |
| 5181 | 0.84 | 0.80 | — | — | — | 154.8 | Castro-González et al. 2022 | TICv8 |
| — | — | — | — | — | — | 154.8 | Pope et al. 2016 | TICv8 |
| 5170 | 0.86 | 0.79 | 2.07 | -0.41 | — | 154.8 | Akana Murphy et al. 2021 | TICv8 |
| — | — | 0.82 | — | — | — | 154.8 | Kruse et al. 2019 | TICv8 |
| — | — | — | — | — | — | 154.8 | Barros et al. 2016 | TICv8 |
| 5165 | 0.88 | 0.80 | — | — | — | 154.8 | Livingston et al. 2018 | TICv8 |