Temperature
4570 K
4356 to 4570
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Stellar HostProfile
TOI-139
Unclassified star • 42.41 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 62483237
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: Mistry et al. 2023 • System source: TICv8
Mass
0.69 Msun
single adopted value
Radius
0.70 Rsun
0.70 to 0.70
Distance
42.41 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.70 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-139
0.70 R☉
System Layout
Known planets
1 planets linked to this host
TOI-139 b
Transit
◌
Discovery
2023
Period
11.07 days
Radius
2.46 R⊕
Mass
—
Eq. Temp
561.2 K
TOI-139 and Its Super-Earth
TOI-139 is a star located 138 light-years away, and it hosts one known planet. The star's reported mass estimate is 0.69 solar masses and its radius estimate is 0.701 solar radii, both smaller than the Sun's. Its temperature is 4570 K, cooler than the Sun's.
The planet, TOI-139 b, is classified as a Super-Earth, a size class that reaches up to 2.5 times Earth's radius. It was discovered in 2023 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. TOI-139 b orbits once every 11.1 days and has a radius of 2.46 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massstable
Radiusdisputed
Luminositystable
Surface Gravitydisputed
Metallicitystable