Temperature
5321 K
5183 to 5702
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Stellar HostProfile
Kepler-1898
Unclassified star โข 360.9 pc
Records
8
literature rows
Planets
1
system count
References
9
distinct source labels
TIC: TIC 121124617
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 & Petigura 2018 โข System source: TICv8
Mass
0.76 Msun
0.76 to 0.98
Radius
0.85 Rsun
0.82 to 1.12
Age
13.18 Gyr
single adopted value
Distance
360.9 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.85 Rโ (circles scaled linearly by radius)
Sun
1.0 Rโ baseline
Kepler-1898
0.85 Rโ
System Layout
Known planets
1 planets linked to this host
Kepler-1898 b
Transit
โ
Discovery
2021
Period
4.77 days
Radius
0.93 Rโ
Mass
โ
Eq. Temp
โ
Kepler-1898 b: A Sub-Earth in a Distant System
Kepler-1898 is a single-star system 1180 light-years away. Its host star has 0.761 solar masses, 0.854 solar radii, and a temperature of 5320 K, making its reported mass and radius estimates smaller than the Sun's and its reported temperature cooler. The star is 13.2 billion years old. One planet orbits this host.
Kepler-1898 b was discovered by transit in 2021. 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-1898 b completes an orbit every 4.77 days. Its radius is 0.934 Earth radii, smaller than Earth's. This places it in the Sub-Earth size class, which compares radius with Earth's: a Sub-Earth is smaller than Earth.
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Stellar refs
8
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5575 | 0.98 | 0.82 | โ | -0.24 | โ | 360.9 | TICv8 | TICv8 |
| 5702 | 0.84 | 1.12 | โ | โ | โ | 360.9 | Q1-Q16 KOI Table | TICv8 |
| 5702 | 0.84 | 1.12 | โ | โ | โ | 360.9 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5183 | 0.78 | 0.84 | โ | โ | โ | 360.9 | Q1-Q8 KOI Table | TICv8 |
| โ | โ | โ | โ | โ | โ | 360.9 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5702 | 0.84 | 1.12 | โ | โ | โ | 360.9 | Q1-Q12 KOI Table | TICv8 |
| 5321 | 0.76 | 0.85 | 13.18 | โ | โ | 360.9 | Fulton & Petigura 2018 | TICv8 |
| 5702 | 0.84 | 1.12 | โ | โ | โ | 360.9 | Q1-Q17 DR25 KOI Table | TICv8 |