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Stellar HostProfile

HD 154391

K1 III • 100.9 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HD: HD 154391HIP: HIP 83289TIC: TIC 424731682

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: Xiao et al. 2024 • System source: TICv8

Temperature

4909 K

4909 to 4966

2 values • 2 distinct

Mass

2.07 Msun

single adopted value

1 values • 1 distinct

Radius

8.56 Rsun

8.28 to 8.56

2 values • 2 distinct

Age

1.10 Gyr

single adopted value

1 values • 1 distinct

Luminosity

1.58 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

100.9 pc

single adopted value

2 values • 1 distinct

Spectral Type

K1 III

Consistent across records

K1 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 8.56 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 154391

8.56 R☉

System Layout

Known planets

1 planets linked to this host

HD 154391 b

Radial Velocity

◌

Discovery

2023

Period

5163 days

Radius

—

Mass

2892.2 M⊕

Eq. Temp

—

HD 154391 and Its Planet

HD 154391 is a K1 III star located 329 light-years away. It has an age of 1.1 billion years, a mass of 2.07 solar masses, a radius of 8.56 solar radii, and a temperature of 4910 K. Its reported mass estimate is larger than the Sun's, 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 star.

That planet, HD 154391 b, was discovered in 2023 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has a mass of 2890 Earth masses and an orbital period of 5160 days. Its reported mass estimate is larger than Earth's and roughly 9.1 times Jupiter's mass.

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

Agestable

1 values • 1 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
4966—8.28———100.9TICv8TICv8
49092.078.561.101.58K1 III100.9Xiao et al. 2024TICv8