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Stellar HostProfile

HD 64121

G8/K0 III • 130.0 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HD: HD 64121TIC: TIC 264770836

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: Ottoni et al. 2022 • System source: TICv8

Temperature

5078 K

5072 to 5078

2 values • 2 distinct

Mass

1.64 Msun

single adopted value

1 values • 1 distinct

Radius

5.44 Rsun

5.44 to 5.84

2 values • 2 distinct

Luminosity

1.25 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

130.0 pc

single adopted value

2 values • 1 distinct

Spectral Type

G8/K0 III

Consistent across records

G8/K0 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 5.44 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 64121

5.44 R☉

System Layout

Known planets

1 planets linked to this host

HD 64121 b

Radial Velocity

◌

Discovery

2022

Period

623 days

Radius

—

Mass

813.6 M⊕

Eq. Temp

—

HD 64121 b: A Giant Planet Orbiting a Distant Star

HD 64121 is a star located 424 light-years away, and it hosts one known planet. The star's spectral type is G8/K0 III, and its reported mass estimate is 1.64 solar masses, larger than the Sun's. Its reported radius estimate is 5.44 solar radii, also larger than the Sun's, while its reported temperature of 5080 K is cooler than the Sun's.

The planet HD 64121 b was discovered in 2022 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. Its minimum mass is 814 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 2.56 times Jupiter's mass. The planet completes one orbit in 623 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
5072—5.84———130.0TICv8TICv8
50781.645.44—1.25G8/K0 III130.0Ottoni et al. 2022TICv8