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Stellar HostProfile

TOI-2031 A

Unclassified star • 276.1 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 470127886

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: Yee et al. 2025 • System source: TICv8

Temperature

6490 K

6490 to 6664

3 values • 2 distinct

Mass

1.17 Msun

1.17 to 1.41

2 values • 2 distinct

Radius

1.24 Rsun

1.18 to 1.24

3 values • 2 distinct

Age

2 Gyr

single adopted value

1 values • 1 distinct

Luminosity

0.39 log(Lsun)

0.39 to 0.40

2 values • 2 distinct

Distance

276.1 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 1.24 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-2031 A

1.24 R☉

System Layout

Known planets

1 planets linked to this host

◌

Discovery

2025

Period

5.72 days

Radius

14.20 R⊕

Mass

254.3 M⊕

Eq. Temp

1358 K

TOI-2031 A b: A Giant Planet Orbiting a Hotter, Larger Star

TOI-2031 A is a star 901 light-years away with one known planet. The host star is 2 billion years old and has a mass of 1.17 solar masses and a radius of 1.24 solar radii. Its temperature is 6490 K, and its reported mass, radius, and temperature estimates are all larger or hotter than the Sun's.

The planet, TOI-2031 A b, was discovered by transit in 2025. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. TOI-2031 A b has a mass of 254 Earth masses and a radius of 14.2 Earth radii, both larger than Earth's. Its mean density is 0.489 g/cm³, 0.0888 times Earth's. Classified as Jupiter-like, it exceeds 4 times Earth's radius. Its orbital period is 5.72 days.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

3

Stellar refs

3

System refs

1

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

3 values • 2 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

3 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
6664—1.18———276.1ExoFOPTICv8
66641.411.18—0.40—276.1TICv8TICv8
64901.171.2420.39—276.1Yee et al. 2025TICv8