Key parameters at a glance
- A radius of 13.60 Earth radii
- A mass of 464.03 Earth masses
- Surface gravity around 2.51 g
- An orbital period of 937.700 days
- Semi-major axis 1.7300 AU
- Distance from Earth 91.08 light-years
- Earth Similarity Index 0.339
- Travel time at Voyager 1 speed 1,606,139 years
1 sibling around HD 114386
HD 114386 b 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 114386 c | Gas Giant | 13.40 | 117.60 | 444.000 | — | 2026 |
| HD 114386 b this | Gas Giant | 13.60 | 464.03 | 937.700 | — | 2003 |
HD 114386 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#609of 1771
top 34.3%
This planet
13.60R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 114386 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.60 | 11.21 |
| Mass (M⊕) | 1.00 | 464.03 | 317.83 |
| Density (g/cm³) | 5.51 | 1.01 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.51 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 464.029 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 362.326 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 114386
HIP
HIP 64295
TIC
TIC 124306858
Gaia DR2
Gaia DR2 6166971574132849792
Gaia DR3
Gaia DR3 6166971574132849792
System
HD 114386
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 2.57 Earth years on a mildly elliptical path at a mean orbital distance of 1.7300 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.339
0 = alien, 1 = Earth-identical
Detection Signatures
Radial velocity
Stellar wobble has been measured spectroscopically.
Astrometry
Positional wobble of the host star was measured.
Discovery Paper
Primary reference
Mayor et al. 2004Instrument
CORALIE Spectrograph
Publication
2004-02
Observation locale
Ground
Discovery cohort
Planets confirmed in 2003 at La Silla Observatory (11 shown).
Host System: HD 114386
Spectral Class
K-type orange
Effective Temperature
4,836 K — cooler than the Sun (5,778 K)
Estimated Age
1.40 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.760 R☉
Stellar Mass
0.600 M☉
Metallicity [Fe/H]
-0.05
Extended Stellar Properties
Surface gravity (log g)
4.450 dex
Stellar density
2.446 g/cm³
Systemic radial velocity
33.20 km/s
Rotational v·sin i
1.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
35.782 mas
Total Proper Motion
352.622 mas/yr
PM Right Ascension
-137.10 mas/yr
PM Declination
-324.88 mas/yr
Galactic Cartesian (pc)
x = -0.780 · y = -0.248 · z = -0.574
Equatorial (J2000)
RA 197.66521° · Dec -35.05618°
Galactic ℓ, b
307.372° · 27.650°
Ecliptic λ, β
210.329° · -25.352°
HTM-20 index
1034664407
Observation Record
Photometric series
1
RV measurements
1
Archive notes
1
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