Key parameters at a glance
- A radius of 13.00 Earth radii
- A mass of 1,144.19 Earth masses
- Surface gravity around 6.77 g
- An orbital period of 1,270.000 days
- Semi-major axis 2.7200 AU
- Distance from Earth 684.40 light-years
- Earth Similarity Index 0.411
- Travel time at Voyager 1 speed 12,069,437 years
HD 86950 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#960of 1771
top 54.2%
This planet
13.00R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 86950 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.00 | 11.21 |
| Mass (M⊕) | 1.00 | 1,144.19 | 317.83 |
| Density (g/cm³) | 5.51 | 2.86 | 1.33 |
| Surface Gravity (g) | 1.00 | 6.77 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 1,144.188 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 86950
HIP
HIP 49129
TIC
TIC 332711151
Gaia DR2
Gaia DR2 5673523262530712832
Gaia DR3
Gaia DR3 5673523262530712832
System
HD 86950
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 3.48 Earth years on a mildly elliptical path at a mean orbital distance of 2.7200 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.411
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Wittenmyer et al. 2017Instrument
Multiple Instruments
Publication
2017-02
Observation locale
Ground
Discovery cohort
Planets confirmed in 2016 at Multiple Observatories (12 shown).
Host System: HD 86950
Spectral Class
K-type orange
Effective Temperature
4,805 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
8.800 R☉
Stellar Mass
1.660 M☉
Metallicity [Fe/H]
0.04
Extended Stellar Properties
Surface gravity (log g)
2.660 dex
Systemic radial velocity
10.75 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.737 mas
Total Proper Motion
14.206 mas/yr
PM Right Ascension
-9.44 mas/yr
PM Declination
-10.62 mas/yr
Galactic Cartesian (pc)
x = -0.830 · y = 0.471 · z = -0.298
Equatorial (J2000)
RA 150.40666° · Dec -17.33307°
Galactic ℓ, b
255.233° · 29.406°
Ecliptic λ, β
159.275° · -27.443°
HTM-20 index
1431874879
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