Stellar HostProfile

HD 149806

K0V • 20.27 pc

Records

literature rows

Planets

system count

References

distinct source labels

HD: HD 149806HIP: HIP 81375TIC: TIC 281738302

Approximate color

from effective temperature

Stellar source: Turnbull 2015 • System source: TICv8

Temperature

5359 K

5352.1 to 5359

2 values • 2 distinct

Mass

0.91 Msun

0.91 to 0.93

4 values • 3 distinct

Radius

0.89 Rsun

0.88 to 0.89

3 values • 2 distinct

Age

8.36 Gyr

single adopted value

2 values • 1 distinct

Luminosity

-0.22 log(Lsun)

-0.24 to -0.22

2 values • 2 distinct

Distance

20.27 pc

single adopted value

10 values • 1 distinct

Spectral Type

K0V

Multiple classifications reported

K0 V (2), K0 (1), K0V (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 149806

0.89 R☉

Discovery

2022

Period

1.65e4 days

Radius

—

Mass

4003.7 M⊕

Eq. Temp

—

HD 149806 and Its Planet

HD 149806 is a K0V star 66.1 light-years away, with one planet. Its spectral type places it in the K-class dwarf range. The star is 8.36 billion years old and has a mass of 0.91 solar masses, a radius of 0.89 solar radii, and a temperature of 5360 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.

The planet HD 149806 b was discovered in 2022 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has a mass of 4000 Earth masses and an orbital period of 16500 days. Its reported mass estimate is larger than Earth's and roughly 12.6 times Jupiter's mass.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

10 values • 1 distinct

Parallaxstable

10 values • 1 distinct

Temperaturedisputed

2 values • 2 distinct

Massdisputed

4 values • 3 distinct

Radiusdisputed

3 values • 2 distinct

Agestable

2 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitydisputed

2 values • 2 distinct

Spectral Typedisputed

4 values • 3 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
—	—	—	—	—	—	20.27	Wright et al. 2004	TICv8
—	—	—	—	—	—	20.27	Nidever et al. 2002	TICv8
—	—	—	—	—	K0	20.27	Cannon & Pickering 1918	TICv8
5352.1	0.93	0.88	—	-0.24	—	20.27	TICv8	TICv8
5359	0.91	0.89	8.36	-0.22	K0V	20.27	Turnbull 2015	TICv8
—	0.91	0.89	8.36	—	—	20.27	Takeda et al. 2007	TICv8
—	—	—	—	—	K0 V	20.27	Michigan Catalog, Vol. 5	TICv8
—	—	—	—	—	K0 V	20.27	Gray et al. 2003	TICv8
—	0.93	—	—	—	—	20.27	Feng et al. 2022	TICv8
—	—	—	—	—	—	20.27	Valenti & Fischer 2005	TICv8

HD 149806

Adopted host values from one source row

Radius against the Sun

Known planets

HD 149806 b

HD 149806 and Its Planet

Underlying measurements and references