Temperature
5754 K
5438.4 to 5754
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Stellar HostProfile
KELT-8
G2 V • 197.6 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
HD: HD 343246TIC: TIC 358516596
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: Fulton et al. 2015 • System source: TICv8
Mass
1.21 Msun
0.81 to 1.21
Radius
1.67 Rsun
1.39 to 1.67
Age
5.40 Gyr
single adopted value
Distance
197.6 pc
single adopted value
Spectral Type
G2 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.67 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
KELT-8
1.67 R☉
System Layout
Known planets
1 planets linked to this host
KELT-8 b
Transit
◌
Discovery
2015
Period
3.24 days
Radius
18.16 R⊕
Mass
209.8 M⊕
Eq. Temp
—
KELT-8 and Its Jupiter-Like Planet
KELT-8 is a G2 V star 644 light-years away, a Sun-like, main-sequence dwarf. It is 5.4 billion years old, with a mass of 1.21 solar masses and a radius of 1.67 solar radii, both larger than the Sun's. Its temperature is 5750 K. One planet is known to orbit this star.
That planet, KELT-8 b, is a Jupiter-like world, meaning its radius exceeds four times Earth's. Its radius is 18.2 Earth radii, larger than Earth's, and its mass is 210 Earth masses, also larger than Earth's. Its mean density is 0.193 g/cm³, 0.035 times Earth's. KELT-8 b was discovered by transit, the dip in starlight caused when a planet crosses in front of its star from our viewpoint, and it orbits every 3.24 days. It was discovered in 2015.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5703 | — | 1.39 | — | — | — | 197.6 | ExoFOP | TICv8 |
| 5754 | 1.21 | 1.67 | 5.40 | — | G2 V | 197.6 | Fulton et al. 2015 | TICv8 |
| 5703 | 1.02 | 1.39 | — | 0.26 | — | 197.6 | TICv8 | TICv8 |
| 5754 | 1.21 | 1.67 | 5.40 | — | — | 197.6 | Bonomo et al. 2017 | TICv8 |
| 5754 | 0.81 | 1.46 | — | — | — | 197.6 | Stassun et al. 2017 | TICv8 |
| 5438.4 | — | 1.44 | — | 0.21 | — | 197.6 | Gaia DR2 | TICv8 |