Stellar HostProfile

HAT-P-3

K • 134.6 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 311035838

Approximate color

from effective temperature

Stellar source: Torres et al. 2007 • System source: TICv8

Temperature

5185 K

5084 to 5224

13 values • 5 distinct

Mass

0.94 Msun

0.89 to 1.06

9 values • 8 distinct

Radius

0.82 Rsun

0.80 to 0.87

13 values • 10 distinct

Age

0.40 Gyr

0.40 to 7.50

8 values • 5 distinct

Luminosity

-0.35 log(Lsun)

-0.36 to -0.34

6 values • 6 distinct

Distance

134.6 pc

single adopted value

15 values • 1 distinct

Spectral Type

Multiple classifications reported

K (2), K1 (1), K1 V (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HAT-P-3

0.82 R☉

Discovery

2007

Period

2.90 days

Radius

10.54 R⊕

Mass

206.6 M⊕

Eq. Temp

—

HAT-P-3 b: A Jupiter-Like World Around a Cool Star

HAT-P-3 is a K-type star located 439 light-years away. Its reported mass estimate is 0.936 solar masses and its reported radius estimate is 0.824 solar radii, both smaller than the Sun's. The star's reported temperature is 5190 K, cooler than the Sun's, and its age is 0.4 billion years. One planet orbits this host.

That planet is HAT-P-3 b, a Jupiter-like world discovered in 2007 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. It has a mass of 207 Earth masses and a radius of 10.5 Earth radii, both larger than Earth's. Its orbital period is 2.9 days, and its mean density is 0.973 g/cm³, 0.177 times Earth's.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

15 values • 1 distinct

Parallaxstable

15 values • 1 distinct

Temperaturedisputed

13 values • 5 distinct

Massdisputed

9 values • 8 distinct

Radiusdisputed

13 values • 10 distinct

Agedisputed

8 values • 5 distinct

Luminositydisputed

6 values • 6 distinct

Surface Gravitydisputed

9 values • 7 distinct

Metallicitydisputed

10 values • 3 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
5185	0.93	0.83	1.50	-0.35	—	134.6	Torres et al. 2008	TICv8
5224	—	0.82	—	—	—	134.6	ExoFOP	TICv8
5185	0.93	0.83	1.50	—	—	134.6	Bonomo et al. 2017	TICv8
5190	0.93	0.85	2.90	—	—	134.6	Mancini et al. 2018	TICv8
5185	0.94	0.82	0.40	-0.35	K	134.6	Torres et al. 2007	TICv8
5190	—	0.85	2.90	—	K1	134.6	Bourrier et al. 2023	TICv8
5185	—	—	—	—	—	134.6	Nascimbeni et al. 2011	TICv8
5185	1.06	0.87	—	—	—	134.6	Stassun et al. 2017	TICv8
5224	0.89	0.82	—	-0.34	—	134.6	TICv8	TICv8
—	—	0.83	—	—	—	134.6	Gibson et al. 2010	TICv8
5185	0.92	0.80	1.60	-0.36	—	134.6	Chan et al. 2011	TICv8
5093.7	—	0.86	—	-0.34	—	134.6	Gaia DR2	TICv8
5185	0.90	0.87	7.50	—	—	134.6	Southworth 2012	TICv8
—	—	—	—	—	K1 V	134.6	Torres et al. 2007	TICv8
5084	0.92	0.80	1.60	-0.36	K	134.6	Ment et al. 2018	TICv8

HAT-P-3

Adopted host values from one source row

Radius against the Sun

Known planets

HAT-P-3 b

HAT-P-3 b: A Jupiter-Like World Around a Cool Star

Underlying measurements and references