Temperature
5089 K
4957 to 5121
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Stellar HostProfile
Kepler-78
G • 124.4 pc
Records
12
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 270701667
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: Sanchis-Ojeda et al. 2013 • System source: TICv8
Mass
0.81 Msun
0.76 to 0.85
Radius
0.74 Rsun
0.73 to 0.95
Age
0.75 Gyr
0.62 to 0.75
Distance
124.4 pc
single adopted value
Spectral Type
G
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.74 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-78
0.74 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-78 b
Transit
◌
Discovery
2013
Period
0.36 days
Radius
1.20 R⊕
Mass
1.68 M⊕
Eq. Temp
2223 K
Kepler-78 and Its Earth-Like Planet
Kepler-78 is a Sun-like star of spectral type G, located 406 light-years away. It hosts one known planet, Kepler-78 b, discovered by the transit method in 2013. The star's reported mass estimate is 0.81 solar masses and its radius estimate is 0.74 solar radii, both smaller than the Sun's. Its reported temperature is 5090 K, cooler than the Sun's, and its age is 0.75 billion years.
Kepler-78 b is classified as Earth-like, a size class that keeps it within 1.5 times Earth's radius. Its radius estimate is 1.2 Earth radii, larger than Earth's, and its mass estimate is 1.68 Earth masses, also larger than Earth's. The orbital period is 0.355 days. Its mean density is 5.34 g/cm³, 0.97 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5121 | 0.83 | 0.74 | 0.62 | — | — | 124.4 | Howard et al. 2013 | TICv8 |
| — | 0.83 | — | 0.62 | — | — | 124.4 | Grunblatt et al. 2015 | TICv8 |
| 5089 | 0.81 | 0.74 | 0.75 | — | G | 124.4 | Sanchis-Ojeda et al. 2013 | TICv8 |
| 4957 | — | 0.95 | — | — | — | 124.4 | Latham et al. 2005 | TICv8 |
| 5058 | 0.78 | 0.75 | — | — | — | 124.4 | Bonomo et al. 2023 | TICv8 |
| 5024.1 | — | 0.74 | — | -0.51 | — | 124.4 | Gaia DR2 | TICv8 |
| 5058 | 0.76 | 0.74 | — | — | — | 124.4 | Pepe et al. 2013 | TICv8 |
| — | — | — | — | — | G | 124.4 | Sanchis-Ojeda et al. 2013 | TICv8 |
| 5121 | 0.78 | 0.75 | — | — | — | 124.4 | Dai et al. 2019 | TICv8 |
| 5089 | 0.84 | 0.75 | — | — | — | 124.4 | Stassun et al. 2017 | TICv8 |
| 5089 | — | 0.74 | — | — | — | 124.4 | Berger et al. 2018 | TICv8 |
| 5076.3 | 0.85 | 0.73 | — | -0.50 | — | 124.4 | TICv8 | TICv8 |