Key parameters at a glance
- A radius of 13.50 Earth radii
- A mass of 483.10 Earth masses
- Surface gravity around 2.65 g
- An orbital period of 1,123.000 days
- Distance from Earth 708.11 light-years
- Earth Similarity Index 0.344
- Travel time at Voyager 1 speed 12,487,475 years
1 sibling around HD 102329
HD 102329 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| HD 102329 b | Gas Giant | 12.60 | 2,593.49 | 778.100 | — | 2011 |
| HD 102329 c this | Gas Giant | 13.50 | 483.10 | 1,123.000 | — | 2018 |
HD 102329 c Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#671of 1771
top 37.8%
This planet
13.50R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 102329 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.50 | 11.21 |
| Mass (M⊕) | 1.00 | 483.10 | 317.83 |
| Density (g/cm³) | 5.51 | 1.08 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.65 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 483.102 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 102329
HIP
HIP 57467
TIC
TIC 325254372
Gaia DR2
Gaia DR2 3895948101012579456
Gaia DR3
Gaia DR3 3895948101012579456
System
HD 102329
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 3.07 Earth years on a mildly elliptical path.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.344
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Bryan et al. 2016Instrument
HIRES Spectrometer
Publication
2016-04
Observation locale
Ground
Discovery cohort
Planets confirmed in 2018 at W. M. Keck Observatory (12 shown).
Host System: HD 102329
Spectral Class
K-type orange
Effective Temperature
4,830 K — cooler than the Sun (5,778 K)
Estimated Age
1.60 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
6.300 R☉
Stellar Mass
1.300 M☉
Metallicity [Fe/H]
0.30
Extended Stellar Properties
Surface gravity (log g)
3.000 dex
Systemic radial velocity
14.88 km/s
Rotational v·sin i
2.60 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
4.578 mas
Total Proper Motion
49.500 mas/yr
PM Right Ascension
-45.91 mas/yr
PM Declination
-18.51 mas/yr
Galactic Cartesian (pc)
x = -0.997 · y = 0.058 · z = 0.061
Equatorial (J2000)
RA 176.69416° · Dec 3.47421°
Galactic ℓ, b
266.983° · 61.746°
Ecliptic λ, β
175.583° · 1.874°
HTM-20 index
-859968947
Similar Worlds
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