Temperature
5890.3 K
single adopted value
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Stellar HostProfile
TOI-261
Unclassified star • 114.5 pc
Records
4
literature rows
Planets
2
system count
References
4
distinct source labels
HIP: HIP 4739TIC: TIC 63898957
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
1.07 Msun
0.50 to 1.07
Radius
1.28 Rsun
1.28 to 1.31
Luminosity
0.25 log(Lsun)
single adopted value
Distance
114.5 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.28 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-261
1.28 R☉
System Layout
Known planets
2 planets linked to this host
TOI-261.01
Transit
◌
Discovery
2021
Period
3.36 days
Radius
3.04 R⊕
Mass
—
Eq. Temp
1722.5 K
TOI-261.02
Transit
◌
Discovery
2021
Period
13.04 days
Radius
3.35 R⊕
Mass
—
Eq. Temp
1007.5 K
TOI-261 and Its Two Neptune-Like Worlds
TOI-261 is a star 373 light-years away with two known planets. The host star has a mass of 1.07 solar masses, a radius of 1.28 solar radii, and a temperature of 5890 K. Its reported radius estimate is larger than the Sun's, and its reported temperature is hotter than the Sun's.
Both planets were discovered by transit in 2021, the method in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. TOI-261.01 is a Neptune-like planet with an orbital period of 3.36 days and a radius of 3.04 Earth radii. TOI-261.02 is also Neptune-like, with an orbital period of 13 days and a radius of 3.35 Earth radii. A Neptune-like size class reaches 4 times Earth's radius. Each planet's reported radius estimate is larger than Earth's.
Among the listed planets, TOI-261.01 has the shortest year by reported estimates, at 3.36 days, and the smallest radius by reported estimates, at 3.04 Earth radii. TOI-261.02 has the longest year by reported estimates, at 13 days, and the largest radius by reported estimates, at 3.35 Earth radii.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturestable
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitydisputed
Metallicitystable