Stellar HostProfile

HAT-P-20

K3 • 71.04 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 26826078

Approximate color

from effective temperature

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

Temperature

4595 K

4500.5 to 4604.0

8 values • 6 distinct

Mass

0.76 Msun

0.73 to 0.76

6 values • 4 distinct

Radius

0.69 Rsun

0.68 to 1.03

7 values • 6 distinct

Age

6.70 Gyr

0.80 to 6.70

3 values • 2 distinct

Luminosity

-0.72 log(Lsun)

-0.73 to -0.71

3 values • 3 distinct

Distance

71.04 pc

single adopted value

9 values • 1 distinct

Spectral Type

Multiple classifications reported

K3 (1), K3 V (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HAT-P-20

0.69 R☉

Discovery

2010

Period

2.88 days

Radius

9.72 R⊕

Mass

2302.9 M⊕

Eq. Temp

970 K

HAT-P-20 and Its Jupiter-Like Planet

HAT-P-20 is a K3 star 232 light-years away. It is 6.7 billion years old, with a mass of 0.756 solar masses and a radius of 0.694 solar radii. Its temperature is 4600 K, cooler than the Sun's. One planet is known to orbit this star.

HAT-P-20 b is a Jupiter-like planet discovered by transit in 2010. Its orbital period is 2.88 days. Its radius is 9.72 Earth radii, larger than Earth's. Its mass is 2300 Earth masses, larger than Earth's and roughly 7.25 times Jupiter's mass. Its mean density is 13.8 g/cm³, 2.51 times Earth's.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

8 values • 6 distinct

Massdisputed

6 values • 4 distinct

Radiusdisputed

7 values • 6 distinct

Agedisputed

3 values • 2 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

5 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
4604.0	0.73	0.68	—	-0.73	—	71.04	TICv8	TICv8
4595	0.76	0.69	6.70	-0.72	K3	71.04	Bakos et al. 2010	TICv8
4595	0.76	0.69	6.70	—	—	71.04	Bonomo et al. 2017	TICv8
4500.5	—	0.73	—	-0.71	—	71.04	Gaia DR2	TICv8
4604	—	0.68	—	—	—	71.04	ExoFOP	TICv8
4502	0.76	1.03	—	—	—	71.04	Mortier et al. 2013	TICv8
4595	0.74	0.68	—	—	—	71.04	Esposito et al. 2017	TICv8
4600	—	—	0.80	—	K3 V	71.04	Salz et al. 2015	TICv8
—	0.76	—	—	—	—	71.04	Knutson et al. 2014	TICv8

HAT-P-20

Adopted host values from one source row

Radius against the Sun

Known planets

HAT-P-20 b

HAT-P-20 and Its Jupiter-Like Planet

Underlying measurements and references