Temperature
5106 K
5067.9 to 5165.2
←Back to Stellar Hosts
Stellar HostProfile
TOI-1798
Unclassified star • 113.2 pc
Records
7
literature rows
Planets
2
system count
References
7
distinct source labels
TIC: TIC 198153540
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: MacDougall et al. 2023 • System source: TICv8
Mass
0.85 Msun
0.85 to 0.87
Radius
0.79 Rsun
0.78 to 0.79
Age
2.60 Gyr
single adopted value
Luminosity
-0.42 log(Lsun)
-0.42 to -0.40
Distance
113.2 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.79 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-1798
0.79 R☉
System Layout
Known planets
2 planets linked to this host
TOI-1798.01
Transit
◌
Discovery
2024
Period
8.02 days
Radius
2.45 R⊕
Mass
—
Eq. Temp
—
TOI-1798.02
Transit
◌
Discovery
2024
Period
0.44 days
Radius
1.46 R⊕
Mass
—
Eq. Temp
—
TOI-1798: A Cool, Light Star with Two Small Worlds
TOI-1798 is a star 369 light-years away with two known planets. The star is 2.6 billion years old, holds 0.854 solar masses, spans 0.791 solar radii, and has a temperature of 5110 K. Its mass and radius are smaller than the Sun's, and its temperature is cooler. Both planets were found in 2024 by the transit method, in which a planet crossing in front of its star dims the starlight slightly; repeated dips reveal orbital periods.
TOI-1798.01 is a Super-Earth with a radius of 2.45 Earth radii, the largest among the listed planets, and an orbital period of 8.02 days, the longest year among them. TOI-1798.02 is an Earth-like planet with a radius of 1.46 Earth radii, the smallest among the listed planets. Its orbital period of 0.438 days is the shortest year among the listed planets. Both planets are larger than Earth by radius, and a year is simply the time a planet takes to complete one orbit.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5165.2 | 0.86 | 0.78 | — | — | — | 113.2 | Hord et al. 2024 | TICv8 |
| 5106 | 0.85 | 0.79 | 2.60 | -0.42 | — | 113.2 | MacDougall et al. 2023 | TICv8 |
| 5165.2 | — | 0.78 | — | — | — | 113.2 | ExoFOP | TICv8 |
| 5067.9 | — | 0.78 | — | — | — | 113.2 | Lafarga et al. 2026 | TICv8 |
| 5165.2 | — | 0.78 | — | — | — | 113.2 | ExoFOP | TICv8 |
| 5165 | 0.87 | 0.78 | — | — | — | 113.2 | Crossfield et al. 2025 | TICv8 |
| 5165.2 | 0.87 | 0.78 | — | -0.40 | — | 113.2 | TICv8 | TICv8 |