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Stellar HostProfile

HD 457

Unclassified star • 55.04 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

TIC: TIC 120506209HD: HD 457

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: TICv8 • System source: TICv8

Temperature

6114.0 K

single adopted value

1 values • 1 distinct

Mass

1.15 Msun

single adopted value

2 values • 1 distinct

Radius

1.28 Rsun

single adopted value

1 values • 1 distinct

Luminosity

0.32 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

55.04 pc

single adopted value

2 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 1.28 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 457

1.28 R☉

System Layout

Known planets

1 planets linked to this host

HD 457 b

Radial Velocity

◌

Discovery

2022

Period

2.03e4 days

Radius

—

Mass

8445.3 M⊕

Eq. Temp

—

HD 457 and Its Companions

HD 457 is a star 180 light-years from Earth, with one known planet in orbit around it. The host star has a reported mass estimate of 1.15 solar masses, a reported radius estimate of 1.28 solar radii, and a temperature of 6110 K. Each of those values is larger, or in the case of temperature hotter, than the Sun's corresponding value.

The planet HD 457 b was discovered in 2022 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. HD 457 b has a mass of 8450 Earth masses, roughly 26.6 times Jupiter's mass and larger than Earth's mass. Its orbital period is 20300 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

Temperaturestable

1 values • 1 distinct

Massstable

2 values • 1 distinct

Radiusstable

1 values • 1 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
—1.15————55.04Feng et al. 2022TICv8
6114.01.151.28—0.32—55.04TICv8TICv8