Temperature
5951 K
5951 to 6075
←Back to Stellar Hosts
Stellar HostProfile
HD 121504
Unclassified star • 41.66 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
HIP: HIP 68162TIC: TIC 208844024HD: HD 121504
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Ghezzi et al. 2010 • System source: TICv8
Mass
1.10 Msun
1.10 to 1.62
Radius
1.15 Rsun
1.07 to 1.15
Age
3 Gyr
1.20 to 3
Luminosity
0.17 log(Lsun)
0.15 to 0.19
Distance
41.66 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.15 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 121504
1.15 R☉
System Layout
Known planets
1 planets linked to this host
HD 121504 b
Radial Velocity
◌
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.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| 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 |