Key parameters at a glance
- A radius of 9.20 Earth radii
- A mass of 62.10 Earth masses
- Surface gravity around 0.73 g
- An orbital period of 55.851 days
- Semi-major axis 0.2674 AU
- Distance from Earth 66.42 light-years
- Earth Similarity Index 0.323
- Travel time at Voyager 1 speed 1,171,243 years
1 sibling around HD 104067
HD 104067 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 104067 c | Sub-Neptune | 3.69 | 13.20 | 13.899 | — | 2024 |
| HD 104067 b this | Neptune-like | 9.20 | 62.10 | 55.851 | — | 2009 |
HD 104067 b Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#68of 574
top 11.7%
This planet
9.20R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | HD 104067 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 9.20 | 11.21 |
| Mass (M⊕) | 1.00 | 62.10 | 317.83 |
| Density (g/cm³) | 5.51 | 0.44 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.73 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 62.100 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 104067
HIP
HIP 58451
TIC
TIC 428673146
Gaia DR2
Gaia DR2 3494677900774838144
Gaia DR3
Gaia DR3 3494677900774838144
System
HD 104067
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 55.85 Earth days (15.3% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.2674 AU.
Extended Orbital Architecture
RV semi-amplitude (K)
12.000 m/s
Transit mid-time (BJD)
2,454,167.3000
Long. of periastron (ω)
29.00°
Angular separation (arcsec)
13.10000
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.323
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Segransan et al. 2011Instrument
HARPS Spectrograph
Publication
2011-11
Observation locale
Ground
Discovery cohort
Planets confirmed in 2009 at La Silla Observatory (12 shown).
Host System: HD 104067
Spectral Class
K-type orange
Effective Temperature
4,952 K — cooler than the Sun (5,778 K)
Estimated Age
4.33 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.780 R☉
Stellar Mass
0.820 M☉
Metallicity [Fe/H]
0.11
Extended Stellar Properties
Surface gravity (log g)
4.560 dex
Stellar density
2.626 g/cm³
Systemic radial velocity
15.12 km/s
Rotational v·sin i
2.32 km/s
Rotation period
18.30 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
49.079 mas
Total Proper Motion
447.021 mas/yr
PM Right Ascension
141.87 mas/yr
PM Declination
-423.91 mas/yr
Galactic Cartesian (pc)
x = -0.938 · y = 0.003 · z = -0.348
Equatorial (J2000)
RA 179.79235° · Dec -20.35561°
Galactic ℓ, b
286.656° · 40.858°
Ecliptic λ, β
188.205° · -18.693°
HTM-20 index
501128701
Similar Worlds
Kepler-695 b
Neptune-like · K-type orange
Radius 9.21 R⊕ · 2,749.3 ly
HD 221416 b
Neptune-like · K-type orange
Radius 9.17 R⊕ · 311.6 ly
NGTS-11 b
Neptune-like · K-type orange
Radius 9.16 R⊕ · 621.1 ly
K2-139 b
Neptune-like · K-type orange
Radius 9.11 R⊕ · 501.8 ly
TOI-1268 b
Neptune-like · K-type orange
Radius 9.10 R⊕ · 357.3 ly
HD 218566 b
Neptune-like · K-type orange
Radius 9.32 R⊕ · 94.0 ly