Temperature
6120 K
6095 to 6530.0
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Stellar HostProfile
K2-98
F8 V • 518.6 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 366410512
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: Barragán et al. 2016 • System source: TICv8
Mass
1.07 Msun
0.91 to 1.25
Radius
1.31 Rsun
1.31 to 1.57
Age
5.20 Gyr
3.40 to 5.20
Distance
518.6 pc
single adopted value
Spectral Type
F8 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.31 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-98
1.31 R☉
System Layout
Known planets
1 planets linked to this host
K2-98 b
Transit
◌
Discovery
2016
Period
10.14 days
Radius
5.07 R⊕
Mass
34.01 M⊕
Eq. Temp
1185 K
K2-98 b: A Transiting Giant Planet Around an F-Type Star
K2-98 is a single star located 1690 light-years away with one known planet. The host is an F8 V star, a main-sequence dwarf somewhat hotter and more massive than the Sun. It has an age of 5.2 billion years, a mass of 1.07 solar masses, and a radius of 1.31 solar radii. Its temperature is 6120 K, hotter than the Sun's. Both its mass and radius estimates are larger than the Sun's.
The sole planet, K2-98 b, was discovered in 2016 by the transit method, in which a planet passes in front of its star and causes a small dip in observed brightness. It is classified as Jupiter-like, meaning its radius exceeds four times Earth's. Its radius is 5.07 Earth radii, larger than Earth's, and its mass is 34 Earth masses, also larger than Earth's. Its mean density is 1.44 g/cm³, 0.261 times Earth's. K2-98 b completes an orbit every 10.1 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
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 |
|---|---|---|---|---|---|---|---|---|
| 6120 | 1.07 | 1.31 | 5.20 | — | F8 V | 518.6 | Barragán et al. 2016 | TICv8 |
| 6172 | 1.20 | 1.57 | — | — | — | 518.6 | Livingston et al. 2018 | TICv8 |
| — | — | 1.37 | — | — | — | 518.6 | Kruse et al. 2019 | TICv8 |
| 6530.0 | — | 1.37 | — | 0.49 | — | 518.6 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 518.6 | Barros et al. 2016 | TICv8 |
| 6260 | 1.25 | 1.52 | 3.40 | 0.50 | — | 518.6 | Thygesen et al. 2023 | TICv8 |
| — | — | — | — | — | — | 518.6 | Pope et al. 2016 | TICv8 |
| 6283 | 1.23 | 1.51 | — | 0.50 | — | 518.6 | TICv8 | TICv8 |
| 6103 | 0.91 | 1.56 | — | — | — | 518.6 | Howard et al. 2025 | TICv8 |
| 6283 | — | 1.51 | — | — | — | 518.6 | ExoFOP | TICv8 |
| — | — | 1.39 | — | — | — | 518.6 | Petigura et al. 2018 | TICv8 |
| 6095 | 1.16 | 1.51 | — | — | — | 518.6 | Mayo et al. 2018 | TICv8 |