Temperature
4830 K
4745 to 4830
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Stellar HostProfile
HD 102329
Unclassified star • 217.1 pc
Records
8
literature rows
Planets
2
system count
References
9
distinct source labels
HD: HD 102329TIC: TIC 325254372HIP: HIP 57467
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: Johnson et al. 2011 • System source: TICv8
Mass
1.95 Msun
1.30 to 3.21
Radius
6.30 Rsun
6.30 to 9.82
Age
1.60 Gyr
single adopted value
Luminosity
1.29 log(Lsun)
1.29 to 1.59
Distance
217.1 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 6.30 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 102329
6.30 R☉
System Layout
Known planets
2 planets linked to this host
HD 102329 b
Radial Velocity
◌
Discovery
2011
Period
778.1 days
Radius
—
Mass
2593.5 M⊕
Eq. Temp
—
HD 102329 c
Radial Velocity
◌
Discovery
2016
Period
1123 days
Radius
—
Mass
483.1 M⊕
Eq. Temp
—
HD 102329 and Its Two Known Planets
HD 102329 is a K0 star located 708 light-years away, with two known planets orbiting it. The star is estimated to be 1.6 billion years old, with a mass of 1.95 solar masses, a radius of 6.3 solar radii, and a temperature of 4830 K. Its reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler than the Sun's.
HD 102329 b was discovered in 2011 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 2590 Earth masses and an orbital period of 778 days. Its minimum mass is roughly 8.16 times Jupiter's mass and is larger than Earth's. Among the listed planets, HD 102329 b has the shortest year by reported estimates and the largest minimum mass.
HD 102329 c was discovered in 2016, also by radial velocity. It has a minimum mass of 483 Earth masses and an orbital period of 1120 days. Its minimum mass is larger than Earth's and roughly 1.52 times Jupiter's mass. Among the listed planets, HD 102329 c has the longest year by reported estimates and the smallest minimum mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Stellar refs
8
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4813 | — | 9.10 | — | — | — | 217.1 | TICv8 | TICv8 |
| — | 1.30 | — | — | — | — | 217.1 | Bryan et al. 2016 | TICv8 |
| — | — | — | — | — | K0 | 217.1 | Cannon & Pickering 1918 | TICv8 |
| — | — | — | — | — | K0 III | 217.1 | Michigan Catalog, Vol. 5 | TICv8 |
| 4773.7 | — | 9.07 | — | 1.59 | — | 217.1 | Gaia DR2 | TICv8 |
| 4745 | 3.21 | 9.82 | — | — | — | 217.1 | Stassun et al. 2017 | TICv8 |
| 4830 | 1.95 | 6.30 | 1.60 | 1.29 | — | 217.1 | Johnson et al. 2011 | TICv8 |
| 4745 | 1.30 | — | — | — | — | 217.1 | Mortier et al. 2013 | TICv8 |