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Stellar HostProfile

TOI-1249

Unclassified star • 139.5 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 232976128

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: MacDougall et al. 2023 • System source: TICv8

Temperature

5497 K

5453 to 5497

3 values • 2 distinct

Mass

1.01 Msun

0.95 to 1.01

2 values • 2 distinct

Radius

0.98 Rsun

0.98 to 1

3 values • 3 distinct

Age

4 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-0.10 log(Lsun)

-0.10 to -0.10

2 values • 2 distinct

Distance

139.5 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.98 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-1249

0.98 R☉

System Layout

Known planets

1 planets linked to this host

TOI-1249 b

Transit

◌

Discovery

2024

Period

13.08 days

Radius

3.27 R⊕

Mass

11.90 M⊕

Eq. Temp

726.9 K

TOI-1249 and Its Neptune-Like Planet

TOI-1249 is a star 455 light-years from Earth with a mass of 1.01 solar masses and a radius of 0.979 solar radii. Its reported radius estimate is smaller than the Sun's, and its temperature of 5500 K is cooler than the Sun's. The star is 4 billion years old. One planet has been found orbiting it.

That planet, TOI-1249 b, is Neptune-like, meaning its radius falls within the size class reaching up to four times Earth's radius. Its radius estimate is 3.27 Earth radii, larger than Earth's, and its mass estimate is 11.9 Earth masses, larger than Earth's, giving it a mean density of 1.87 g/cm³, 0.34 times Earth's.

TOI-1249 b was discovered in 2024 by the transit method, in which a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Repeated dips help establish its orbital period of 13.1 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 • 3 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
54971.010.984-0.10—139.5MacDougall et al. 2023TICv8
54530.951.00—-0.10—139.5TICv8TICv8
5453—1———139.5ExoFOPTICv8