Temperature
4195 K
single adopted value
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Stellar HostProfile
TOI-2459
Unclassified star • 36.61 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 192790476
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: TICv8 • System source: TICv8
Mass
0.66 Msun
single adopted value
Radius
0.68 Rsun
0.68 to 0.68
Luminosity
-0.90 log(Lsun)
single adopted value
Distance
36.61 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.68 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-2459
0.68 R☉
System Layout
Known planets
1 planets linked to this host
TOI-2459 b
Transit
◌
Discovery
2023
Period
19.10 days
Radius
2.95 R⊕
Mass
—
Eq. Temp
445.0 K
TOI-2459 b: A Neptune-like World Around a Cool Star
TOI-2459 is a star 119 light-years away with a single known planet, TOI-2459 b. The star has a mass of 0.66 solar masses, a radius of 0.675 solar radii, and a temperature of 4200 K. Its reported mass estimate is smaller than the Sun's, its reported radius estimate is smaller than the Sun's, and its reported temperature is cooler than the Sun's.
TOI-2459 b was discovered by transit in 2023. 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. The planet is Neptune-like, a size class that reaches four times Earth's radius. It orbits every 19.1 days and has a radius of 2.95 Earth radii, which is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturestable
Massstable
Radiusdisputed
Luminositystable
Surface Gravitydisputed