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Stellar HostProfile

HD 161178

G9 III • 107.2 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HD: HD 161178TIC: TIC 441797545

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

4786 K

4786 to 4793.3

2 values • 2 distinct

Mass

1.06 Msun

single adopted value

1 values • 1 distinct

Radius

10.95 Rsun

10.95 to 11.05

2 values • 2 distinct

Luminosity

1.75 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

107.2 pc

single adopted value

2 values • 1 distinct

Spectral Type

G9 III

Consistent across records

G9 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 10.95 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 161178

10.95 R☉

System Layout

Known planets

1 planets linked to this host

HD 161178 b

Radial Velocity

◌

Discovery

2021

Period

279.3 days

Radius

—

Mass

181.2 M⊕

Eq. Temp

—

HD 161178 and Its Single Known Planet

HD 161178 is a star 350 light-years away with a spectral type of G9 III. It has 1.06 solar masses, 11 solar radii, and a temperature of 4790 K. 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 161178 b, was discovered in 2021 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. The planet has a minimum mass of 181 Earth masses, larger than Earth's, and an orbital period of 279 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
4793.3—11.05———107.2TICv8TICv8
47861.0610.95—1.75G9 III107.2Teng et al. 2022TICv8