Temperature
5978 K
5743.0 to 5978
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Stellar HostProfile
TOI-4640
Unclassified star • 245.1 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 337216118
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
1.10 Msun
single adopted value
Radius
1.07 Rsun
single adopted value
Luminosity
0.12 log(Lsun)
single adopted value
Distance
245.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.07 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-4640
1.07 R☉
System Layout
Known planets
1 planets linked to this host
TOI-4640 b
Transit
◌
Discovery
2026
Period
2.69 days
Radius
2.84 R⊕
Mass
—
Eq. Temp
—
TOI-4640 and Its Neptune-like Planet
TOI-4640 is a star 799 light-years away with a mass of 1.1 solar masses, a radius of 1.07 solar radii, and a temperature of 5980 K. Its radius is larger than the Sun's, and its temperature is hotter than the Sun's. One planet orbits this host.
That planet is TOI-4640 b, a Neptune-like world discovered in 2026 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. Repeated dips help establish orbital periods. TOI-4640 b completes an orbit every 2.69 days and has a radius of 2.84 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
Radiusstable
Luminositystable
Surface Gravitydisputed