Temperature
5307 K
5129.5 to 5307
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Stellar HostProfile
Kepler-598
Unclassified star • 681.1 pc
Records
21
literature rows
Planets
2
system count
References
15
distinct source labels
TIC: TIC 137969066
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: Morton et al. 2016 • System source: TICv8
Mass
0.87 Msun
0.81 to 0.90
Radius
0.86 Rsun
0.78 to 0.90
Age
7.59 Gyr
4.68 to 12.30
Distance
681.1 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.86 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-598
0.86 R☉
System Layout
Known planets
2 planets linked to this host
Kepler-598 b
Transit
◌
Discovery
2016
Period
3.70 days
Radius
1.50 R⊕
Mass
—
Eq. Temp
—
Kepler-598 c
Transit
◌
Discovery
2020
Period
86.49 days
Radius
3.02 R⊕
Mass
—
Eq. Temp
—
Kepler-598: A Distant Star With Two Known Worlds
Kepler-598 is a star 2220 light-years away with two planets orbiting it. The host star is 7.59 billion years old, has 0.87 solar masses, 0.86 solar radii, and a temperature of 5310 K. Its mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
Both planets were found by the transit method, in which a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Kepler-598 b was discovered in 2016 and is classified as a Super-Earth, a size class reaching 2.5 times Earth's radius. It has an orbital period of 3.7 days and a radius of 1.5 Earth radii, larger than Earth's. Among the listed planets, it has the shortest year and the smallest radius.
Kepler-598 c, discovered in 2020, is Neptune-like, a size class reaching 4 times Earth's radius. It has an orbital period of 86.5 days and a radius of 3.02 Earth radii, also larger than Earth's. Among the listed planets, it has the longest year and the largest radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
21
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5307 | 0.87 | 0.86 | 7.59 | — | — | 681.1 | Morton et al. 2016 | TICv8 |
| 5245 | — | 0.90 | — | — | — | 681.1 | Q1-Q6 KOI Table | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5245 | — | 0.90 | — | — | — | 681.1 | Q1-Q6 KOI Table | TICv8 |
| 5245 | 0.90 | 0.90 | — | -0.26 | — | 681.1 | TICv8 | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q12 KOI Table | TICv8 |
| 5274 | 0.88 | 0.85 | 4.68 | — | — | 681.1 | Fulton & Petigura 2018 | TICv8 |
| 5129.5 | — | 0.90 | — | -0.30 | — | 681.1 | Gaia DR2 | TICv8 |
| 5218 | — | 0.78 | — | — | — | 681.1 | Latham et al. 2005 | TICv8 |
| 5245 | — | 0.90 | — | — | — | 681.1 | Batalha et al. 2013 | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q16 KOI Table | TICv8 |
| — | — | — | — | — | — | 681.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5245 | 0.85 | 0.90 | 12.30 | — | — | 681.1 | Q1-Q8 KOI Table | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q16 KOI Table | TICv8 |
| 5252 | 0.81 | 0.90 | — | — | — | 681.1 | Q1-Q12 KOI Table | TICv8 |
| 5274 | — | 0.86 | — | — | — | 681.1 | Berger et al. 2018 | TICv8 |
| 5245 | 0.85 | 0.90 | 12.30 | — | — | 681.1 | Q1-Q8 KOI Table | TICv8 |
| — | — | — | — | — | — | 681.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |