Temperature
5750 K
5585 to 5780
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Stellar HostProfile
HD 134987
G5V • 26.18 pc
Records
20
literature rows
Planets
2
system count
References
21
distinct source labels
HD: HD 134987HIP: HIP 74500TIC: TIC 61397572
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: Turnbull 2015 • System source: TICv8
Mass
1.05 Msun
1.02 to 1.10
Radius
1.22 Rsun
1.19 to 1.29
Age
8.36 Gyr
4.50 to 8.40
Luminosity
0.21 log(Lsun)
0.14 to 0.26
Distance
26.18 pc
single adopted value
Spectral Type
G5V
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.22 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 134987
1.22 R☉
System Layout
Known planets
2 planets linked to this host
HD 134987 b
Radial Velocity
◌
Discovery
1999
Period
258.2 days
Radius
—
Mass
511.7 M⊕
Eq. Temp
—
HD 134987 c
Radial Velocity
◌
Discovery
2009
Period
5000 days
Radius
—
Mass
260 M⊕
Eq. Temp
—
HD 134987 and Its Two Known Planets
HD 134987 is a G5V star, a Sun-like main-sequence dwarf, located 85.4 light-years away. Its reported mass is 1.05 solar masses and its radius is 1.22 solar radii, both estimates larger than the Sun's corresponding values. The star's temperature is 5750 K, cooler than the Sun's, and its age is 8.36 billion years. Two planets have been reported orbiting this star.
HD 134987 b was discovered in 1999 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. It has a minimum mass of 512 Earth masses, roughly 1.61 times Jupiter's mass, and an orbital period of 258 days. Among the listed planets, HD 134987 b has the shortest year and the largest minimum mass.
HD 134987 c was discovered in 2009, also by radial velocity. Its minimum mass is 260 Earth masses, and its orbital period is 5000 days. Both planets' minimum masses are larger than Earth's. Among the listed planets, HD 134987 c has the longest year and the smallest minimum mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
20
Stellar refs
20
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 |
|---|---|---|---|---|---|---|---|---|
| 5585 | 1.10 | 1.25 | 8.40 | 0.26 | G5 V | 26.18 | Jones et al. 2010 | TICv8 |
| — | — | — | — | — | — | 26.18 | Nidever et al. 2002 | TICv8 |
| 5750 | 1.10 | — | — | — | — | 26.18 | Butler et al. 2006 | TICv8 |
| 5764 | 1.10 | 1.19 | 4.50 | 0.14 | — | 26.18 | Ghezzi et al. 2010 | TICv8 |
| — | — | — | — | — | — | 26.18 | Nordstrom et al. 2004 | TICv8 |
| 5699.3 | — | 1.29 | — | 0.20 | — | 26.18 | Gaia DR2 | TICv8 |
| 5780 | 1.05 | — | — | — | — | 26.18 | Santos et al. 2003 | TICv8 |
| — | 1.05 | 1.22 | 8.36 | — | — | 26.18 | Takeda et al. 2007 | TICv8 |
| 5701 | 1.02 | 1.28 | — | 0.19 | — | 26.18 | TICv8 | TICv8 |
| — | — | — | — | — | — | 26.18 | Wright et al. 2004 | TICv8 |
| 5750 | 1.05 | 1.22 | 8.36 | 0.21 | G5V | 26.18 | Turnbull 2015 | TICv8 |
| — | — | — | — | — | G6 IV-V | 26.18 | Gray et al. 2006 | TICv8 |
| — | 1.05 | — | — | — | — | 26.18 | Butler et al. 2001 | TICv8 |
| 5776 | 1.08 | — | — | — | — | 26.18 | Santos et al. 2004 | TICv8 |
| 5740 | 1.03 | — | — | 0.16 | — | 26.18 | Sousa et al. 2008 | TICv8 |
| — | — | — | — | — | G5 V | 26.18 | Michigan Catalog, Vol. 4 | TICv8 |
| 5736 | 1.10 | 1.22 | — | — | — | 26.18 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | — | 26.18 | Valenti & Fischer 2005 | TICv8 |
| 5700.8 | 1.09 | 1.29 | — | — | — | 26.18 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | G5 | 26.18 | Cannon & Pickering 1918 | TICv8 |