Temperature
5700 K
single adopted value
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Stellar HostProfile
TOI-4638
Unclassified star • 168.2 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 58824746
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
1.01 Msun
1.01 to 1.02
Radius
0.89 Rsun
0.89 to 0.90
Luminosity
-0.12 log(Lsun)
single adopted value
Distance
168.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.89 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-4638
0.89 R☉
System Layout
Known planets
1 planets linked to this host
TOI-4638.01
Transit
◌
Discovery
2024
Period
10.28 days
Radius
2.93 R⊕
Mass
—
Eq. Temp
—
TOI-4638 and Its Neptune-Like Planet
TOI-4638 is a single-star system 549 light-years away. The host star has a mass of 1.01 solar masses, a radius of 0.895 solar radii, and a temperature of 5700 K; its reported radius estimate is smaller than the Sun's. One planet is known to orbit this star.
That planet is TOI-4638.01, a Neptune-like world discovered in 2024 by the transit method. 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. TOI-4638.01 has an orbital period of 10.3 days, radius of 2.93 Earth radii, and a reported radius estimate larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturestable
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitystable