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Stellar HostProfile

HD 126105

K1 III • 82.88 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HD: HD 126105HIP: HIP 70382TIC: TIC 422566985

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: Wittenmyer et al. 2026 • System source: TICv8

Temperature

4875 K

4864 to 4875

2 values • 2 distinct

Mass

1.20 Msun

single adopted value

1 values • 1 distinct

Radius

4.21 Rsun

4.18 to 4.21

2 values • 2 distinct

Age

4.90 Gyr

single adopted value

1 values • 1 distinct

Luminosity

0.95 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

82.88 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: 4.21 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 126105

4.21 R☉

System Layout

Known planets

1 planets linked to this host

HD 126105 b

Radial Velocity

◌

Discovery

2026

Period

524 days

Radius

—

Mass

530.8 M⊕

Eq. Temp

—

HD 126105 and Its Lone Known Planet

HD 126105 is a K1 III star located 270 light-years away. It is 4.9 billion years old, holds 1.2 solar masses, spans 4.21 solar radii, and has a temperature of 4880 K. Its radius is larger than the Sun's, and its temperature is cooler. One planet has been found around this star.

That planet, HD 126105 b, was discovered in 2026 by 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. The planet's minimum mass is 531 Earth masses, a lower bound on its true mass, and it completes an orbit every 524 days. That minimum mass is larger than Earth's and roughly 1.67 times Jupiter's mass.

Provenance

Underlying measurements and references

Download JSONDownload CSV

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
48751.204.214.900.95K1 III82.88Wittenmyer et al. 2026TICv8
4864—4.18———82.88TICv8TICv8