Key parameters at a glance
- A radius of 14.10 Earth radii
- A mass of 206.59 Earth masses
- Surface gravity around 1.04 g
- An orbital period of 1,634.000 days
- Semi-major axis 2.3600 AU
- Distance from Earth 88.61 light-years
- Earth Similarity Index 0.273
- Travel time at Voyager 1 speed 1,562,552 years
1 sibling around BD-11 4672
BD-11 4672 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 |
|---|---|---|---|---|---|---|
| BD-11 4672 c | Neptune-like | 4.04 | 15.37 | 74.200 | — | 2020 |
| BD-11 4672 b this | Gas Giant | 14.10 | 206.59 | 1,634.000 | — | 2014 |
BD-11 4672 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-11 4672 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.10 | 11.21 |
| Mass (M⊕) | 1.00 | 206.59 | 317.83 |
| Density (g/cm³) | 5.51 | 0.41 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.04 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 206.590 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HIP
HIP 90979
TIC
TIC 217831699
Gaia DR2
Gaia DR2 4154598526336121600
Gaia DR3
Gaia DR3 4154598526336121600
System
BD-11 4672
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 4.47 Earth years on a nearly circular orbit at a mean orbital distance of 2.3600 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.273
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Moutou et al. 2015Instrument
HARPS Spectrograph
Publication
2015-04
Observation locale
Ground
Discovery cohort
Planets confirmed in 2014 at La Silla Observatory (4 shown).
Host System: BD-11 4672
Spectral Class
K-type orange
Effective Temperature
4,550 K — cooler than the Sun (5,778 K)
Estimated Age
7.40 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.639 R☉
Stellar Mass
0.651 M☉
Metallicity [Fe/H]
-0.35
Extended Stellar Properties
Surface gravity (log g)
4.642 dex
Stellar density
3.530 g/cm³
Systemic radial velocity
-87.30 km/s
Rotational v·sin i
1.00 km/s
Rotation period
25.00 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
36.781 mas
Total Proper Motion
372.522 mas/yr
PM Right Ascension
-288.59 mas/yr
PM Declination
-235.56 mas/yr
Galactic Cartesian (pc)
x = 0.143 · y = -0.969 · z = -0.202
Equatorial (J2000)
RA 278.36887° · Dec -11.63705°
Galactic ℓ, b
20.543° · -1.360°
Ecliptic λ, β
278.363° · 11.560°
HTM-20 index
1674453784
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