Stellar HostProfile

HD 199509

G3V • 24.31 pc

Records

literature rows

Planets

system count

References

distinct source labels

HIP: HIP 104436TIC: TIC 401701660HD: HD 199509

Approximate color

from effective temperature

Stellar source: Turnbull 2015 • System source: TICv8

Temperature

5770 K

5770 to 5796.0

2 values • 2 distinct

Mass

0.96 Msun

0.95 to 1.04

4 values • 3 distinct

Radius

0.92 Rsun

0.90 to 0.92

3 values • 2 distinct

Age

1.60 Gyr

single adopted value

2 values • 1 distinct

Luminosity

-0.08 log(Lsun)

-0.08 to -0.08

2 values • 2 distinct

Distance

24.31 pc

single adopted value

10 values • 1 distinct

Spectral Type

G3V

Multiple classifications reported

G0 (1), G1 V (1), G3 V (1), G3V (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 199509

0.92 R☉

Discovery

2022

Period

99.62 days

Radius

—

Mass

43.22 M⊕

Eq. Temp

—

HD 199509 b: A Giant Planet Around a Sun-Like Star

HD 199509 is a G3V star, a Sun-like dwarf, located 79.3 light-years away. It has a mass of 0.96 solar masses, making it smaller than the Sun, and a radius of 0.92 solar radii, also smaller than the Sun. The star is 1.6 billion years old and has a temperature of 5770 K. One planet orbits it.

That planet, HD 199509 b, was discovered in 2022 using the radial velocity method, which detects the gravitational wobble a planet induces in its star's motion. Repeated wobbles reveal the planet and its orbital period, which for HD 199509 b is 99.6 days. Its minimum mass is 43.2 Earth masses, a lower bound on its true mass that is larger than Earth's.

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 • 4 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
—	—	—	—	—	G1 V	24.31	Gray et al. 2006	TICv8
—	—	—	—	—	G0	24.31	Cannon & Pickering 1918	TICv8
—	—	—	—	—	—	24.31	Valenti & Fischer 2005	TICv8
5770	0.96	0.92	1.60	-0.08	G3V	24.31	Turnbull 2015	TICv8
—	—	—	—	—	—	24.31	Nordstrom et al. 2004	TICv8
—	—	—	—	—	G3 V	24.31	Michigan Catalog, Vol. 1	TICv8
—	—	—	—	—	—	24.31	Henry et al. 1996	TICv8
—	1.04	—	—	—	—	24.31	Feng et al. 2022	TICv8
—	0.95	0.92	1.60	—	—	24.31	Takeda et al. 2007	TICv8
5796.0	1.04	0.90	—	-0.08	—	24.31	TICv8	TICv8

HD 199509

Adopted host values from one source row

Radius against the Sun

Known planets

HD 199509 b

HD 199509 b: A Giant Planet Around a Sun-Like Star

Underlying measurements and references