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Stellar HostProfile

TOI-251

Unclassified star • 99.52 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 224225541

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: Zhou et al. 2021 • System source: TICv8

Temperature

5875 K

5789 to 5875

4 values • 4 distinct

Mass

1.04 Msun

1.04 to 1.04

2 values • 2 distinct

Radius

0.88 Rsun

0.88 to 0.96

4 values • 3 distinct

Age

0.18 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-0.08 log(Lsun)

-0.08 to -0.03

3 values • 3 distinct

Distance

99.52 pc

single adopted value

4 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.88 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-251

0.88 R☉

System Layout

Known planets

1 planets linked to this host

TOI-251 b

Transit

◌

Discovery

2021

Period

4.94 days

Radius

2.74 R⊕

Mass

317.8 M⊕

Eq. Temp

—

TOI-251 b: A Neptune-like World Around a Star

TOI-251 is a star 325 light-years away with an age of 0.18 billion years, a mass of 1.04 solar masses, a radius of 0.881 solar radii, and a temperature of 5880 K. Its reported mass estimate is larger than the Sun's, while its reported radius estimate is smaller than the Sun's. One planet is known to orbit this host.

That planet, TOI-251 b, is a Neptune-like world discovered by transit in 2021. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. TOI-251 b orbits every 4.94 days. Its radius is 2.74 Earth radii, larger than Earth's, and within the Neptune-like size class, which extends to 4 times Earth's radius. Its mass is reported as an upper limit of 317.83 Earth masses.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

4 values • 4 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

4 values • 3 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
58751.040.880.18-0.08—99.52Zhou et al. 2021TICv8
5862—0.96———99.52ExoFOPTICv8
5828—0.94—-0.03—99.52Gaia DR2TICv8
57891.040.96—-0.03—99.52TICv8TICv8