Confirmed Exoplanet Discovered 2007

HD 192699 b

A gas giant orbiting the g-type yellow (sun-like) HD 192699, located approximately 234.4 light-years from Earth.

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

Radius
13.40 R⊕
Radius (Jupiter)
1.190 R♃
Mass
666.17 M⊕
Mass (Jupiter)
2.096 M♃
Density
1.52 g/cm³
Surface Gravity
3.71 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.368
HZ Position Unknown
Controversial No

Discovery

Year 2007
Method Radial Velocity
Facility Lick Observatory
Telescope 3.0 m C. Donald Shane Telescope

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⊕)1.0013.4011.21
Mass (M⊕)1.00666.17317.83
Density (g/cm³)5.511.521.33
Surface Gravity (g)1.003.712.53
Insolation (S⊕)1.000.037

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

Radius 13.400 R⊕ · percentile 56 / cohort 1771
Mass 666.172 M⊕ · percentile 56 / cohort 1747
Orbital period 340.94 d · percentile 62 / cohort 1533
Distance 71.86 pc · percentile 28 / cohort 1759
ESI 0.368 · percentile 76 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
340.940 days
Semi-major axis
1.0630 AU
Eccentricity
0.082
Inclination
°

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. 2007

Instrument

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]

Distance
71.86 parsec
Light-years 234.38 ly
V-band magnitude
6.46 mag
Voyager-speed travel 4,133,371 yr

Multi-band Host Photometry — 11 bands

4.07.37.31B6.46V6.21Gaia5.66TESS4.90J4.36H4.37K4.28W14.03W24.34W34.27W4

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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