Key parameters at a glance
- A radius of 14.10 Earth radii
- A mass of 187.52 Earth masses
- Surface gravity around 0.94 g
- An orbital period of 3.488 days
- Semi-major axis 0.0400 AU
- Distance from Earth 275.30 light-years
- Earth Similarity Index 0.267
- Travel time at Voyager 1 speed 4,854,883 years
- Almost certainly tidally locked to its host star given the close orbit
BD-10 3166 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#371of 1771
top 20.9%
This planet
14.10R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | BD-10 3166 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.10 | 11.21 |
| Mass (M⊕) | 1.00 | 187.52 | 317.83 |
| Density (g/cm³) | 5.51 | 0.37 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.94 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 187.520 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 148563075
Gaia DR2
Gaia DR2 3758629479636689536
Gaia DR3
Gaia DR3 3758629479636689536
System
BD-10 3166
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.49 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0400 AU.
Extended Orbital Architecture
RV semi-amplitude (K)
60.900 m/s
Transit mid-time (BJD)
2,451,705.9630
Long. of periastron (ω)
35.00°
Angular separation (arcsec)
0.47400
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.267
0 = alien, 1 = Earth-identical
Insufficient insolation data. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Butler et al. 2000Instrument
HIRES Spectrometer
Publication
2000-12
Observation locale
Ground
Discovery cohort
Planets confirmed in 2000 at W. M. Keck Observatory (4 shown).
Host System: BD-10 3166
Spectral Class
K-type orange
Effective Temperature
5,393 K — cooler than the Sun (5,778 K)
Estimated Age
0.25 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.910 R☉
Stellar Mass
1.470 M☉
Metallicity [Fe/H]
0.38
Extended Stellar Properties
Surface gravity (log g)
4.690 dex
Stellar density
1.533 g/cm³
Systemic radial velocity
26.40 km/s
Rotational v·sin i
0.92 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
11.819 mas
Total Proper Motion
185.026 mas/yr
PM Right Ascension
-184.84 mas/yr
PM Declination
-8.37 mas/yr
Galactic Cartesian (pc)
x = -0.947 · y = 0.261 · z = -0.187
Equatorial (J2000)
RA 164.61912° · Dec -10.77042°
Galactic ℓ, b
263.285° · 43.238°
Ecliptic λ, β
170.131° · -15.968°
HTM-20 index
-573649377
Similar Worlds
HD 83443 b
Gas Giant · K-type orange
Radius 14.10 R⊕ · 133.4 ly
HD 141399 e
Gas Giant · K-type orange
Radius 14.10 R⊕ · 120.7 ly
HD 103720 b
Gas Giant · K-type orange
Radius 14.10 R⊕ · 148.5 ly
HD 27894 b
Gas Giant · K-type orange
Radius 14.10 R⊕ · 142.9 ly
eps Eri b
Gas Giant · K-type orange
Radius 14.10 R⊕ · 10.4 ly
BD-11 4672 b
Gas Giant · K-type orange
Radius 14.10 R⊕ · 88.6 ly