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Stellar HostProfile

HD 79181

G8 III • 103.3 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HD: HD 79181TIC: TIC 229846907

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: Teng et al. 2022 • System source: TICv8

Temperature

4862 K

4862 to 4876.6

2 values • 2 distinct

Mass

1.28 Msun

single adopted value

1 values • 1 distinct

Radius

11.06 Rsun

10.99 to 11.06

2 values • 2 distinct

Luminosity

1.79 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

103.3 pc

single adopted value

2 values • 1 distinct

Spectral Type

G8 III

Consistent across records

G8 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 11.06 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 79181

11.06 R☉

System Layout

Known planets

1 planets linked to this host

HD 79181 b

Radial Velocity

◌

Discovery

2021

Period

273.1 days

Radius

—

Mass

203.4 M⊕

Eq. Temp

—

HD 79181 and Its Giant Planet

HD 79181 is a G8 III star 337 light-years from Earth. It is a cool star, with a temperature of 4860 K, and a large one, with a radius of 11.1 solar radii and a mass of 1.28 solar masses. Its reported radius estimate is larger than the Sun's, and its reported temperature is cooler than the Sun's. One planet is known to orbit this host.

That planet, HD 79181 b, was discovered in 2021 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Repeated wobbles reveal the planet and its orbital period. The planet's minimum mass is 203 Earth masses, larger than Earth's, and its orbital period is 273 days.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

2

Stellar refs

2

System refs

1

Distancestable

2 values • 1 distinct

Parallaxstable

2 values • 1 distinct

Temperaturedisputed

2 values • 2 distinct

Massstable

1 values • 1 distinct

Radiusdisputed

2 values • 2 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitydisputed

2 values • 2 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
4876.6—10.99———103.3TICv8TICv8
48621.2811.06—1.79G8 III103.3Teng et al. 2022TICv8