Stellar HostProfile

HD 189733

Unclassified star • 19.76 pc

Records

literature rows

Planets

system count

References

distinct source labels

HIP: HIP 98505TIC: TIC 256364928HD: HD 189733

Approximate color

from effective temperature

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

Temperature

5201 K

4875 to 5201

15 values • 10 distinct

Mass

0.85 Msun

0.76 to 0.85

14 values • 10 distinct

Radius

0.68 Rsun

0.68 to 0.81

16 values • 13 distinct

Age

1 Gyr

1 to 6.80

6 values • 5 distinct

Luminosity

-0.52 log(Lsun)

-0.52 to -0.46

7 values • 7 distinct

Distance

19.76 pc

single adopted value

25 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 189733

0.68 R☉

Discovery

2005

Period

2.22 days

Radius

12.67 R⊕

Mass

359.1 M⊕

Eq. Temp

—

HD 189733 and Its Close-Orbiting Planet

HD 189733 is a G-type star 64.5 light-years from Earth. It has one known planet. Its reported mass estimate is 0.85 solar masses, its reported radius estimate is 0.68 solar radii, and its temperature is 5200 K. Each of these values is smaller or cooler than the Sun's corresponding value. The star also has a reported upper limit of 1 billion years on its age.

The planet HD 189733 b was discovered in 2005 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. It is a Jupiter-like planet, a size class that exceeds 4 times Earth's radius. Its radius is 12.7 Earth radii, larger than Earth's. Its mass is 359 Earth masses, also larger than Earth's and roughly 1.13 times Jupiter's mass. It completes one orbit in 2.22 days.

The planet's mean density is 0.974 g/cm³, 0.177 times Earth's.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

25 values • 1 distinct

Parallaxstable

25 values • 1 distinct

Temperaturedisputed

15 values • 10 distinct

Massdisputed

14 values • 10 distinct

Radiusdisputed

16 values • 13 distinct

Agedisputed

6 values • 5 distinct

Luminositydisputed

7 values • 7 distinct

Surface Gravitydisputed

13 values • 10 distinct

Metallicitydisputed

12 values • 6 distinct

Spectral Typedisputed

5 values • 3 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
4875	0.85	0.81	—	-0.48	—	19.76	Boyajian et al. 2015	TICv8
—	—	0.77	—	—	—	19.76	Di Gloria et al. 2015	TICv8
—	—	—	—	—	—	19.76	Nordstrom et al. 2004	TICv8
—	0.84	—	—	—	K2 V	19.76	Paredes et al. 2021	TICv8
5023	—	0.78	—	—	—	19.76	ExoFOP	TICv8
5012.5	0.83	0.78	—	—	—	19.76	Rosenthal et al. 2021	TICv8
5109	0.79	0.70	—	—	—	19.76	Mortier et al. 2013	TICv8
5050	0.82	0.76	—	—	—	19.76	Bouchy et al. 2005	TICv8
—	—	—	—	—	—	19.76	Agol et al. 2010	TICv8
5014.8	—	0.78	—	-0.46	—	19.76	Gaia DR2	TICv8
—	0.82	—	1.58	—	—	19.76	Maxted et al. 2015	TICv8
—	—	—	—	—	K0-2 V	19.76	Salz et al. 2015	TICv8
5050	0.81	0.77	—	-0.47	—	19.76	Addison et al. 2019	TICv8
5023	0.84	0.78	—	-0.46	—	19.76	TICv8	TICv8
5040	0.81	0.76	6.80	-0.48	—	19.76	Torres et al. 2008	TICv8
—	—	—	—	—	—	19.76	Wright et al. 2004	TICv8
5201	0.85	0.68	1	-0.52	—	19.76	Ghezzi et al. 2010	TICv8
4875	—	0.81	—	—	—	19.76	Cegla et al. 2016	TICv8
5040	0.81	0.76	6.80	—	—	19.76	Bonomo et al. 2017	TICv8
—	—	—	1.15	—	—	19.76	Sanz-Forcada et al. 2010	TICv8
5050	0.84	0.75	1.40	—	—	19.76	Southworth 2010	TICv8
5052	0.79	0.75	—	—	—	19.76	Stassun et al. 2017	TICv8
4939	0.76	0.80	—	-0.47	G5	19.76	Turnbull 2015	TICv8
—	—	—	—	—	G5	19.76	Cannon & Pickering 1918	TICv8
—	—	—	—	—	K2 V	19.76	Gray et al. 2003	TICv8

HD 189733

Adopted host values from one source row

Radius against the Sun

Known planets

HD 189733 b

HD 189733 and Its Close-Orbiting Planet

Underlying measurements and references