Temperature
4782 K
4653 to 4911.2
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Stellar HostProfile
Kepler-99
Unclassified star • 208.4 pc
Records
16
literature rows
Planets
1
system count
References
17
distinct source labels
TIC: TIC 169462917
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: Marcy et al. 2014 • System source: TICv8
Mass
0.79 Msun
0.75 to 0.82
Radius
0.73 Rsun
0.68 to 1.17
Age
1.47 Gyr
1.47 to 6.80
Distance
208.4 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.73 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-99
0.73 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-99 b
Transit
◌
Discovery
2014
Period
4.60 days
Radius
1.48 R⊕
Mass
6.15 M⊕
Eq. Temp
—
Kepler-99 b: A Nearby Earth-Like World
Kepler-99 is a star located 680 light-years away. It has 0.79 solar masses and 0.73 solar radii, both smaller than the Sun's corresponding values, and a temperature of 4780 K, which is cooler than the Sun's. The star is 1.47 billion years old. One planet is known to orbit this host.
That planet, Kepler-99 b, is classified as Earth-like. It was discovered 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, with repeated dips helping to establish its orbital period. Kepler-99 b completes an orbit every 4.6 days. Its radius is 1.48 Earth radii, larger than Earth's, and its mass is 6.15 Earth masses, also larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
16
Stellar refs
16
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 208.4 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4723 | 0.75 | 0.77 | — | — | — | 208.4 | Q1-Q16 KOI Table | TICv8 |
| 4782 | — | 0.73 | — | — | — | 208.4 | Q1-Q6 KOI Table | TICv8 |
| 4852 | — | 0.74 | — | — | — | 208.4 | Berger et al. 2018 | TICv8 |
| — | 0.82 | — | — | — | — | 208.4 | Weiss et al. 2024 | TICv8 |
| 4782 | — | 0.73 | — | — | — | 208.4 | Batalha et al. 2013 | TICv8 |
| 4911.2 | — | 0.68 | — | -0.62 | — | 208.4 | Gaia DR2 | TICv8 |
| 4723 | 0.75 | 0.77 | — | — | — | 208.4 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4783 | 0.81 | 0.74 | — | — | — | 208.4 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4853 | 0.81 | 0.75 | 4.27 | — | — | 208.4 | Morton et al. 2016 | TICv8 |
| 4653 | — | 1.17 | — | — | — | 208.4 | Latham et al. 2005 | TICv8 |
| 4852 | 0.82 | 0.74 | 1.95 | — | — | 208.4 | Fulton & Petigura 2018 | TICv8 |
| 4782 | 0.79 | 0.73 | 6.80 | — | — | 208.4 | Q1-Q8 KOI Table | TICv8 |
| 4723 | 0.75 | 0.77 | — | — | — | 208.4 | Q1-Q12 KOI Table | TICv8 |
| 4782 | 0.79 | 0.73 | 1.47 | — | — | 208.4 | Marcy et al. 2014 | TICv8 |
| 4774 | 0.77 | 0.75 | — | -0.59 | — | 208.4 | TICv8 | TICv8 |