Key parameters at a glance
- A radius of 13.40 Earth radii
- A mass of 666.17 Earth masses
- Surface gravity around 3.71 g
- An orbital period of 340.940 days
- Semi-major axis 1.0630 AU
- Distance from Earth 234.38 light-years
- Earth Similarity Index 0.368
- Travel time at Voyager 1 speed 4,133,371 years
HD 192699 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#730of 1771
top 41.2%
This planet
13.40R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 192699 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.40 | 11.21 |
| Mass (M⊕) | 1.00 | 666.17 | 317.83 |
| Density (g/cm³) | 5.51 | 1.52 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.71 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 666.172 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 192699
HIP
HIP 99894
TIC
TIC 399334674
Gaia DR2
Gaia DR2 4246124829130366848
Gaia DR3
Gaia DR3 4246124829130366848
System
HD 192699
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 340.94 Earth days (93.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 1.0630 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.368
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Johnson et al. 2007Instrument
Hamilton Echelle Spectrograph
Publication
2007-08
Observation locale
Ground
Discovery cohort
Planets confirmed in 2007 at Lick Observatory (3 shown).
Host System: HD 192699
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,041 K — cooler than the Sun (5,778 K)
Estimated Age
1.80 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
4.410 R☉
Stellar Mass
1.380 M☉
Metallicity [Fe/H]
-0.15
Extended Stellar Properties
Surface gravity (log g)
3.250 dex
Systemic radial velocity
13.20 km/s
Rotational v·sin i
1.90 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
13.887 mas
Total Proper Motion
66.395 mas/yr
PM Right Ascension
-41.24 mas/yr
PM Declination
-52.04 mas/yr
Galactic Cartesian (pc)
x = 0.558 · y = -0.826 · z = 0.080
Equatorial (J2000)
RA 304.02484° · Dec 4.58057°
Galactic ℓ, b
47.130° · -16.493°
Ecliptic λ, β
307.522° · 23.697°
HTM-20 index
1983388664
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