Temperature
4043 K
3968 to 4149
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Stellar HostProfile
Kepler-777
Unclassified star • 443.1 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
TIC: TIC 123497954
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: Morton et al. 2016 • System source: TICv8
Mass
0.58 Msun
0.56 to 0.63
Radius
0.56 Rsun
0.54 to 0.67
Age
3.16 Gyr
1.90 to 13.90
Distance
443.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.56 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-777
0.56 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-777 b
Transit
◌
Discovery
2016
Period
5.73 days
Radius
1.47 R⊕
Mass
—
Eq. Temp
—
Kepler-777 b: An Earth-Like World in a Distant System
Kepler-777 is a star located 1450 light-years away. It is a single-star system orbited by one known planet. The host star is estimated to be 3.16 billion years old, with a mass of 0.58 solar masses and a radius of 0.56 solar radii. Its reported temperature is 4040 K. The star's mass and radius estimates are both smaller than the Sun's, and its temperature is cooler than the Sun's.
The sole known planet, Kepler-777 b, was discovered in 2016 using the transit method, in which a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Kepler-777 b is classified as Earth-like, a size class that stays within 1.5 times Earth's radius. It has an orbital period of 5.73 days and a radius of 1.47 Earth radii, making it larger than Earth.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| 3968 | — | 0.64 | — | — | — | 443.1 | Berger et al. 2018 | TICv8 |
| 4065 | 0.59 | 0.57 | — | — | — | 443.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4149 | 0.56 | 0.54 | 13.90 | — | — | 443.1 | Q1-Q8 KOI Table | TICv8 |
| — | — | — | — | — | — | 443.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4065 | 0.59 | 0.57 | — | — | — | 443.1 | Q1-Q16 KOI Table | TICv8 |
| 3968 | 0.57 | 0.55 | — | — | — | 443.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4031 | 0.63 | 0.67 | — | -0.97 | — | 443.1 | TICv8 | TICv8 |
| 4065 | 0.59 | 0.57 | — | — | — | 443.1 | Q1-Q12 KOI Table | TICv8 |
| 4021 | — | 0.54 | — | — | — | 443.1 | Batalha et al. 2013 | TICv8 |
| 4065 | — | 0.64 | — | -1.00 | — | 443.1 | Gaia DR2 | TICv8 |
| 4021 | — | 0.54 | — | — | — | 443.1 | Q1-Q6 KOI Table | TICv8 |
| — | — | — | 1.90 | — | — | 443.1 | Gaidos et al. 2024 | TICv8 |
| 4021 | — | 0.67 | — | — | — | 443.1 | Latham et al. 2005 | TICv8 |
| 4043 | 0.58 | 0.56 | 3.16 | — | — | 443.1 | Morton et al. 2016 | TICv8 |