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Stellar HostProfile

HD 73256

G8/K0 • 36.71 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

HD: HD 73256HIP: HIP 42214TIC: TIC 11665403

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: Udry et al. 2003 • System source: TICv8

Temperature

5570 K

5504 to 5570

2 values • 2 distinct

Mass

1.05 Msun

0.97 to 1.05

3 values • 3 distinct

Radius

0.89 Rsun

0.89 to 0.94

2 values • 2 distinct

Age

0.83 Gyr

0.83 to 2.20

2 values • 2 distinct

Luminosity

-0.16 log(Lsun)

-0.16 to -0.13

2 values • 2 distinct

Distance

36.71 pc

single adopted value

3 values • 1 distinct

Spectral Type

G8/K0

Multiple classifications reported

G8 IV (1), G8/K0 (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.89 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 73256

0.89 R☉

System Layout

Known planets

1 planets linked to this host

HD 73256 c

Radial Velocity

◌

Discovery

2023

Period

2690 days

Radius

—

Mass

5085.3 M⊕

Eq. Temp

—

HD 73256 and Its Planet

HD 73256 is a star 120 light-years away with a spectral type of G8/K0. It has a mass of 1.05 solar masses and a radius of 0.89 solar radii, and its temperature is 5570 K. Its age is 0.83 billion years. One planet orbits this host.

That planet, HD 73256 c, was discovered in 2023 by radial velocity, the method that detects the wobble a planet's gravity induces in its star's motion. Repeated wobbles reveal the planet and its orbital period. HD 73256 c has a mass of 5090 Earth masses and an orbital period of 2690 days. Its mass is larger than Earth's and roughly 16 times Jupiter's mass.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

3

Stellar refs

3

System refs

1

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

2 values • 2 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

2 values • 2 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitydisputed

2 values • 2 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
55040.970.94—-0.13—36.71TICv8TICv8
55701.050.890.83-0.16G8/K036.71Udry et al. 2003TICv8
—1—2.20—G8 IV36.71Philipot et al. 2023TICv8