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Stellar HostProfile

HD 105779

G2 • 55.24 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HD: HD 105779TIC: TIC 347713631

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: Sreenivas et al. 2022 • System source: TICv8

Temperature

5792 K

single adopted value

2 values • 1 distinct

Mass

0.89 Msun

0.89 to 1.04

2 values • 2 distinct

Radius

0.94 Rsun

0.94 to 0.95

2 values • 2 distinct

Age

7.54 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-0.11 log(Lsun)

-0.11 to -0.04

2 values • 2 distinct

Distance

55.24 pc

single adopted value

2 values • 1 distinct

Spectral Type

G2

Consistent across records

G2 (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.94 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 105779

0.94 R☉

System Layout

Known planets

1 planets linked to this host

HD 105779 b

Radial Velocity

◌

Discovery

2022

Period

2412 days

Radius

—

Mass

203.4 M⊕

Eq. Temp

—

HD 105779 and Its Planet

HD 105779 is a G2 star 180 light-years away, with one known planet in orbit. The star is 7.54 billion years old and has a mass of 0.89 solar masses, a radius of 0.94 solar radii, and a temperature of 5790 K. Its mass and radius are smaller than the Sun's, while its temperature is hotter.

The planet HD 105779 b was discovered in 2022 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. HD 105779 b has a minimum mass of 203 Earth masses, larger than Earth's, and an orbital period of 2410 days, the time it takes to complete one orbit.

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

2 values • 1 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

2 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
57921.040.95—-0.04—55.24TICv8TICv8
57920.890.947.54-0.11G255.24Sreenivas et al. 2022TICv8