Temperature
4970 K
4816.8 to 5297
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Stellar HostProfile
K2-77
Unclassified star โข 141.7 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
TIC: TIC 435339847
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: Gaidos et al. 2017 โข System source: TICv8
Mass
0.80 Msun
0.79 to 0.87
Radius
0.76 Rsun
0.76 to 0.83
Age
0.85 Gyr
0.85 to 4.70
Luminosity
-0.50 log(Lsun)
-0.53 to -0.40
Distance
141.7 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.76 Rโ (circles scaled linearly by radius)
Sun
1.0 Rโ baseline
K2-77
0.76 Rโ
System Layout
Known planets
1 planets linked to this host
K2-77 b
Transit
โ
Discovery
2016
Period
8.20 days
Radius
2.50 Rโ
Mass
โ
Eq. Temp
806 K
K2-77 and Its Super-Earth
K2-77 is a star 462 light-years away with one known planet. The host star is 0.8 solar masses, 0.76 solar radii, and 4970 K, and its age is 0.85 billion years. Its mass and radius are smaller than the Sun's, and it is cooler than the Sun.
The planet K2-77 b is a Super-Earth discovered by transit in 2016. A transit is a planet's passage in front of its star from our viewpoint, causing a small brightness dip; repeated dips help establish orbital periods. K2-77 b orbits every 8.2 days, and its radius of 2.5 Earth radii is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
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 |
|---|---|---|---|---|---|---|---|---|
| 5070 | 0.85 | 0.78 | โ | โ | โ | 141.7 | Mayo et al. 2018 | TICv8 |
| 4970 | 0.80 | 0.76 | 0.85 | -0.50 | โ | 141.7 | Gaidos et al. 2017 | TICv8 |
| 4816.8 | โ | 0.78 | โ | -0.53 | โ | 141.7 | Gaia DR2 | TICv8 |
| 5297 | 0.87 | 0.83 | โ | โ | โ | 141.7 | Crossfield et al. 2016 | TICv8 |
| โ | โ | 0.78 | โ | โ | โ | 141.7 | Kruse et al. 2019 | TICv8 |
| 4865.6 | 0.79 | 0.79 | โ | -0.50 | โ | 141.7 | TICv8 | TICv8 |
| 5160 | 0.85 | 0.79 | 4.70 | -0.40 | โ | 141.7 | Thygesen et al. 2023 | TICv8 |
| 4865.6 | โ | 0.79 | โ | โ | โ | 141.7 | ExoFOP | TICv8 |
| โ | โ | โ | โ | โ | โ | 141.7 | Rizzuto et al. 2017 | TICv8 |