Key parameters at a glance
- A radius of 13.60 Earth radii
- A mass of 444.96 Earth masses
- Surface gravity around 2.41 g
- An orbital period of 670.000 days
- Semi-major axis 1.6500 AU
- Distance from Earth 401.97 light-years
- Earth Similarity Index 0.336
- Travel time at Voyager 1 speed 7,088,758 years
1 sibling around HD 116029
HD 116029 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 116029 b this | Gas Giant | 13.60 | 444.96 | 670.000 | — | 2011 |
| HD 116029 c | Gas Giant | 13.70 | 403.64 | 907.000 | — | 2018 |
HD 116029 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 116029 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.60 | 11.21 |
| Mass (M⊕) | 1.00 | 444.96 | 317.83 |
| Density (g/cm³) | 5.51 | 0.97 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.41 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 444.962 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 116029
HIP
HIP 65117
TIC
TIC 305837711
Gaia DR2
Gaia DR2 1446584503287858560
Gaia DR3
Gaia DR3 1446584503287858560
System
HD 116029
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 1.83 Earth years on a nearly circular orbit at a mean orbital distance of 1.6500 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.336
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Johnson et al. 2011Instrument
HIRES Spectrometer
Publication
2011-12
Observation locale
Ground
Discovery cohort
Planets confirmed in 2011 at W. M. Keck Observatory (12 shown).
Host System: HD 116029
Spectral Class
K-type orange
Effective Temperature
4,819 K — cooler than the Sun (5,778 K)
Estimated Age
2.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
4.890 R☉
Stellar Mass
0.830 M☉
Metallicity [Fe/H]
0.09
Extended Stellar Properties
Surface gravity (log g)
2.980 dex
Systemic radial velocity
-6.42 km/s
Rotational v·sin i
0.46 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
8.085 mas
Total Proper Motion
54.168 mas/yr
PM Right Ascension
-14.49 mas/yr
PM Declination
-52.19 mas/yr
Galactic Cartesian (pc)
x = -0.853 · y = -0.313 · z = 0.417
Equatorial (J2000)
RA 200.16469° · Dec 24.64847°
Galactic ℓ, b
13.884° · 82.977°
Ecliptic λ, β
188.105° · 30.482°
HTM-20 index
-2100210377
Observation Record
Photometric series
1
Stellar spectra
1
Archive notes
2
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