Stellar HostProfile

HD 121504

Unclassified star • 41.66 pc

Records

literature rows

Planets

system count

References

distinct source labels

HD: HD 121504TIC: TIC 208844024HIP: HIP 68162

Approximate color

from effective temperature

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

Temperature

5951 K

5951 to 6075

7 values • 6 distinct

Mass

1.10 Msun

1.10 to 1.62

6 values • 6 distinct

Radius

1.15 Rsun

1.07 to 1.15

4 values • 4 distinct

Age

3 Gyr

1.20 to 3

2 values • 2 distinct

Luminosity

0.17 log(Lsun)

0.15 to 0.19

5 values • 5 distinct

Distance

41.66 pc

single adopted value

11 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 121504

1.15 R☉

Discovery

2003

Period

63.33 days

Radius

—

Mass

479.9 M⊕

Eq. Temp

—

HD 121504 b: A Giant Planet Orbiting a Sun-Like Star

HD 121504 is a G5 star located 136 light-years away, and it hosts one known planet. The star is larger than the Sun, with a radius of 1.15 solar radii, and hotter, with a temperature of 5950 K. Its mass is 1.1 solar masses, and its age is 3 billion years.

The planet HD 121504 b was discovered in 2003 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. The planet completes one orbit every 63.3 days. Its minimum mass is 480 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 1.51 times Jupiter's mass.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

11 values • 1 distinct

Parallaxstable

11 values • 1 distinct

Temperaturedisputed

7 values • 6 distinct

Massdisputed

6 values • 6 distinct

Radiusdisputed

4 values • 4 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

5 values • 5 distinct

Surface Gravitydisputed

6 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
6075	1.18	—	1.20	0.19	—	41.66	Mayor et al. 2004	TICv8
6024.5	1.12	1.09	—	0.15	—	41.66	TICv8	TICv8
6027	1.62	1.07	—	—	—	41.66	Stassun et al. 2017	TICv8
—	—	—	—	—	—	41.66	Nordstrom et al. 2004	TICv8
6004.2	—	1.10	—	0.15	—	41.66	Gaia DR2	TICv8
—	—	—	—	—	G2 V	41.66	Michigan Catalog, Vol. 1	TICv8
6075	1.17	—	—	—	—	41.66	Santos et al. 2004	TICv8
5951	1.10	1.15	3	0.17	—	41.66	Ghezzi et al. 2010	TICv8
—	—	—	—	—	G5	41.66	Cannon & Pickering 1918	TICv8
6022	1.13	—	—	0.18	—	41.66	Sousa et al. 2008	TICv8
—	—	—	—	—	—	41.66	Henry et al. 1996	TICv8

HD 121504

Adopted host values from one source row

Radius against the Sun

Known planets

HD 121504 b

HD 121504 b: A Giant Planet Orbiting a Sun-Like Star

Underlying measurements and references