Stellar HostProfile

HD 6434

Unclassified star • 42.36 pc

Records

literature rows

Planets

system count

References

distinct source labels

HIP: HIP 5054TIC: TIC 180871947HD: HD 6434

Approximate color

from effective temperature

Stellar source: Ghezzi et al. 2010 • System source: TICv8

Temperature

5742 K

5690 to 5835

7 values • 6 distinct

Mass

0.75 Msun

0.75 to 1.10

6 values • 6 distinct

Radius

1.09 Rsun

1.09 to 1.14

5 values • 5 distinct

Age

13 Gyr

3.80 to 13

3 values • 3 distinct

Luminosity

0.06 log(Lsun)

0.05 to 0.10

4 values • 4 distinct

Distance

42.36 pc

single adopted value

10 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 6434

1.09 R☉

Discovery

2003

Period

22.00 days

Radius

—

Mass

155.7 M⊕

Eq. Temp

—

HD 6434 and Its Lone Known Planet

HD 6434 is a G0 star located 138 light-years away. Its reported mass is 0.75 solar masses, its radius is 1.09 solar radii, and its temperature is 5740 K. The star's reported mass estimate is smaller than the Sun's, and its reported temperature is cooler than the Sun's. A reported lower limit places its age at 13 billion years.

One planet orbits this host. HD 6434 b was found in 2003 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 156 Earth masses, larger than Earth's, and its orbital period is 22 days.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

10 values • 1 distinct

Parallaxstable

10 values • 1 distinct

Temperaturedisputed

7 values • 6 distinct

Massdisputed

6 values • 6 distinct

Radiusdisputed

5 values • 5 distinct

Agedisputed

3 values • 3 distinct

Luminositydisputed

4 values • 4 distinct

Surface Gravitydisputed

6 values • 5 distinct

Metallicitydisputed

6 values • 5 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
5742	0.75	1.09	13	0.06	—	42.36	Ghezzi et al. 2010	TICv8
—	—	—	—	—	G2/3 V	42.36	Michigan Catalog, Vol. 2	TICv8
—	—	—	—	—	G0	42.36	Cannon & Pickering 1918	TICv8
5769	1.10	1.12	—	—	—	42.36	Stassun et al. 2017	TICv8
5776.3	1.04	1.12	—	0.10	—	42.36	TICv8	TICv8
5835	0.79	—	3.80	0.05	—	42.36	Mayor et al. 2004	TICv8
5690	0.89	1.14	11.27	—	—	42.36	Hinkel et al. 2015	TICv8
5768	—	1.13	—	0.10	—	42.36	Gaia DR2	TICv8
5835	0.82	—	—	—	—	42.36	Santos et al. 2004	TICv8
—	—	—	—	—	—	42.36	Nordstrom et al. 2004	TICv8

HD 6434

Adopted host values from one source row

Radius against the Sun

Known planets

HD 6434 b

HD 6434 and Its Lone Known Planet

Underlying measurements and references