Temperature
6213 K
6025 to 6346.8
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Stellar HostProfile
Kepler-8
Unclassified star • 1021.9 pc
Records
20
literature rows
Planets
1
system count
References
21
distinct source labels
TIC: TIC 123233041
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: Jenkins et al. 2010 • System source: TICv8
Mass
1.21 Msun
1.13 to 1.23
Radius
1.49 Rsun
1.05 to 1.58
Age
3.84 Gyr
3.20 to 5.40
Luminosity
0.60 log(Lsun)
0.50 to 0.60
Distance
1021.9 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.49 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-8
1.49 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-8 b
Transit
◌
Discovery
2010
Period
3.52 days
Radius
15.87 R⊕
Mass
187.5 M⊕
Eq. Temp
1680 K
Kepler-8 and Its Jupiter-Like Planet
Kepler-8 is a star 3330 light-years away with one known planet. The host star is 3.84 billion years old and has a mass of 1.21 solar masses and a radius of 1.49 solar radii. Its temperature is 6210 K. Each of these reported stellar values is larger or hotter than the Sun's corresponding value.
The planet Kepler-8 b was discovered by transit in 2010. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. Kepler-8 b is Jupiter-like, a size class for planets exceeding 4 times Earth's radius. It has a radius of 15.9 Earth radii, larger than Earth's, and a mass of 188 Earth masses, also larger than Earth's. Its orbital period is 3.52 days.
Kepler-8 b's mean density is 0.258 g/cm³, 0.0469 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
20
Stellar refs
20
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 |
|---|---|---|---|---|---|---|---|---|
| 6225 | 1.13 | 1.45 | — | — | — | 1021.9 | Q1-Q17 DR24 KOI Table | TICv8 |
| 6213 | 1.21 | 1.49 | 3.84 | 0.60 | — | 1021.9 | Jenkins et al. 2010 | TICv8 |
| 6179 | — | 1.58 | — | — | — | 1021.9 | ExoFOP | TICv8 |
| 6213 | 1.23 | 1.50 | 3.20 | — | — | 1021.9 | Southworth 2011 | TICv8 |
| 6258 | 1.23 | 1.49 | 3.47 | — | — | 1021.9 | Morton et al. 2016 | TICv8 |
| 6025 | — | 1.56 | — | — | — | 1021.9 | Batalha et al. 2013 | TICv8 |
| 6225 | 1.13 | 1.45 | — | — | — | 1021.9 | Q1-Q16 KOI Table | TICv8 |
| 6210 | 1.21 | 1.49 | 3.80 | — | — | 1021.9 | Bonomo et al. 2017 | TICv8 |
| 6225 | 1.13 | 1.45 | — | — | — | 1021.9 | Q1-Q12 KOI Table | TICv8 |
| 6213 | 1.21 | 1.49 | — | — | — | 1021.9 | Esteves et al. 2015 | TICv8 |
| 6179 | 1.18 | 1.58 | — | 0.52 | — | 1021.9 | TICv8 | TICv8 |
| 6225 | 1.13 | 1.45 | — | — | — | 1021.9 | Q1-Q17 DR25 KOI Table | TICv8 |
| 6181 | 1.15 | 1.54 | 4.68 | — | — | 1021.9 | Fulton & Petigura 2018 | TICv8 |
| 6025 | 1.14 | 1.56 | 5.40 | — | — | 1021.9 | Q1-Q8 KOI Table | TICv8 |
| 6312 | — | — | — | — | — | 1021.9 | KIC - SCPKEY | TICv8 |
| 6181 | — | 1.57 | — | — | — | 1021.9 | Berger et al. 2018 | TICv8 |
| 6164 | — | 1.05 | — | — | — | 1021.9 | Latham et al. 2005 | TICv8 |
| 6025 | — | 1.56 | — | — | — | 1021.9 | Q1-Q6 KOI Table | TICv8 |
| 6346.8 | — | 1.46 | — | 0.50 | — | 1021.9 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 1021.9 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |