Temperature
5680 K
5640.3 to 5741
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Stellar HostProfile
K2-277
Unclassified star • 113.1 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 404421005
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: Thygesen et al. 2023 • System source: TICv8
Mass
0.97 Msun
0.97 to 1.02
Radius
0.97 Rsun
0.95 to 1.01
Age
4.90 Gyr
single adopted value
Luminosity
-0.05 log(Lsun)
-0.06 to -0.05
Distance
113.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.97 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-277
0.97 R☉
System Layout
Known planets
1 planets linked to this host
K2-277 b
Transit
◌
Discovery
2018
Period
6.33 days
Radius
2.19 R⊕
Mass
—
Eq. Temp
1049 K
K2-277 b: A Super-Earth in a Close Orbit
K2-277 is a star located 369 light-years from Earth. It is 4.9 billion years old, has a mass of 0.974 solar masses and a radius of 0.973 solar radii, and its temperature is 5680 K. One planet orbits this host.
That planet is K2-277 b, a Super-Earth discovered in 2018 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods. K2-277 b completes an orbit every 6.33 days. Its radius is 2.19 Earth radii, an estimate larger than Earth's; Earth radii compare radius, not volume. A Super-Earth reaches 2.5 times Earth's radius, so the size classification describes radius rather than composition.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
Stellar refs
11
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 |
|---|---|---|---|---|---|---|---|---|
| 5741 | 1.02 | 0.97 | — | — | — | 113.1 | Livingston et al. 2018 | TICv8 |
| — | — | 1.01 | — | — | — | 113.1 | Petigura et al. 2018 | TICv8 |
| 5673 | 1.01 | 0.98 | — | -0.05 | — | 113.1 | TICv8 | TICv8 |
| — | — | — | — | — | — | 113.1 | Pope et al. 2016 | TICv8 |
| — | — | — | — | — | — | 113.1 | Barros et al. 2016 | TICv8 |
| 5680 | 0.97 | 0.97 | 4.90 | -0.05 | — | 113.1 | Thygesen et al. 2023 | TICv8 |
| 5733 | — | 0.95 | — | — | — | 113.1 | Mayo et al. 2018 | TICv8 |
| 5673 | — | 0.98 | — | — | — | 113.1 | ExoFOP | TICv8 |
| 5705 | 0.98 | 0.95 | — | — | — | 113.1 | Howard et al. 2025 | TICv8 |
| 5640.3 | — | 0.97 | — | -0.06 | — | 113.1 | Gaia DR2 | TICv8 |
| — | — | 0.97 | — | — | — | 113.1 | Kruse et al. 2019 | TICv8 |