Temperature
5248 K
5104.5 to 5797
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Stellar HostProfile
K2-27
Unclassified star • 249.6 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 363548415
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: Petigura et al. 2017 • System source: TICv8
Mass
0.87 Msun
0.87 to 1.01
Radius
0.89 Rsun
0.81 to 1.03
Age
10.30 Gyr
single adopted value
Distance
249.6 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.89 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-27
0.89 R☉
System Layout
Known planets
1 planets linked to this host
K2-27 b
Transit
◌
Discovery
2016
Period
6.77 days
Radius
4.74 R⊕
Mass
30.20 M⊕
Eq. Temp
836 K
K2-27 b: A Giant Planet Orbiting a Cool Star
K2-27 is a star located 814 light-years away, and it has one known planet. The host star is estimated to be 10.3 billion years old, with a mass of 0.866 solar masses and a radius of 0.885 solar radii. Its temperature is 5250 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 planet K2-27 b is a Jupiter-like world, meaning its radius exceeds four times Earth's radius. Its radius is 4.74 Earth radii, larger than Earth's, and its mass is 30.2 Earth masses, also larger than Earth's. The planet completes an orbit every 6.77 days. Its mean density is 1.56 g/cm³, which is 0.284 times Earth's. K2-27 b was discovered in 2016 using the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5246 | 0.88 | 0.88 | — | — | — | 249.6 | Howard et al. 2025 | TICv8 |
| — | — | — | — | — | — | 249.6 | Barros et al. 2016 | TICv8 |
| 5231 | 0.89 | 0.89 | — | -0.27 | — | 249.6 | TICv8 | TICv8 |
| 5104.5 | — | 0.93 | — | -0.27 | — | 249.6 | Gaia DR2 | TICv8 |
| 5797 | 1.01 | 1.03 | — | — | — | 249.6 | Crossfield et al. 2016 | TICv8 |
| 5422 | — | 0.88 | — | — | — | 249.6 | Montet et al. 2015 | TICv8 |
| 5320 | 0.89 | 0.85 | — | — | — | 249.6 | Van Eylen et al. 2016 | TICv8 |
| — | — | 0.93 | — | — | — | 249.6 | Kruse et al. 2019 | TICv8 |
| 5248 | 0.87 | 0.89 | 10.30 | — | — | 249.6 | Petigura et al. 2017 | TICv8 |
| 5368 | 0.92 | 0.86 | — | — | — | 249.6 | Mayo et al. 2018 | TICv8 |
| 5247 | — | 0.81 | — | — | — | 249.6 | Vanderburg et al. 2016 | TICv8 |
| 5231 | — | 0.89 | — | — | — | 249.6 | ExoFOP | TICv8 |