Key parameters at a glance

A radius of 13.50 Earth radii
A mass of 495.81 Earth masses
Surface gravity around 2.72 g
An orbital period of 499.480 days
Semi-major axis 1.1340 AU
Distance from Earth 192.30 light-years
Earth Similarity Index 0.346
Travel time at Voyager 1 speed 3,391,135 years

HIP 109384 b Planet Profile

Physical Specs

Radius

13.50 R⊕

Radius (Jupiter)

1.210 R♃

Mass

495.81 M⊕

Mass (Jupiter)

1.560 M♃

Density

1.11 g/cm³

Surface Gravity

2.72 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.346

HZ Position Unknown

Controversial No

Discovery

Year 2016

Method Radial Velocity

Facility Haute-Provence Observatory

Telescope 1.93 m Telescope

Size rank in cohort

Rank by radius

#671of 1771

top 37.8%

This planet

13.50R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 45350 b 13.50 R⊕ HD 82943 b 13.50 R⊕ HD 27442 b 13.50 R⊕

Metric	Earth	HIP 109384 b	Jupiter
Radius (R⊕)	1.00	13.50	11.21
Mass (M⊕)	1.00	495.81	317.83
Density (g/cm³)	5.51	1.11	1.33
Surface Gravity (g)	1.00	2.72	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	495.815 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HIP

HIP 109384

TIC

TIC 316470945

Gaia DR2

Gaia DR2 2230429435107258752

Gaia DR3

Gaia DR3 2230429435107258752

System

HIP 109384

Percentile among Gas Giant cohort

Radius 13.500 R⊕ · percentile 59 / cohort 1771

Mass 495.815 M⊕ · percentile 48 / cohort 1747

Orbital period 499.48 d · percentile 68 / cohort 1533

Distance 58.96 pc · percentile 25 / cohort 1759

ESI 0.346 · percentile 70 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

499.480 days

Semi-major axis

1.1340 AU

Eccentricity

0.549

Inclination

— °

Year Length

A year here lasts about 1.37 Earth years on a highly eccentric trajectory at a mean orbital distance of 1.1340 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.346

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

H Eacute Brard et al. 2016

Instrument

SOPHIE Spectrograph

Publication

2016-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2016 at Haute-Provence Observatory (10 shown).

HD 35759 b · Gas Giant HD 220842 b · Gas Giant HD 12484 b · Gas Giant HD 191806 b · Gas Giant HIP 109600 b · Gas Giant HD 221585 b · Gas Giant HD 143105 b · Gas Giant HD 214823 b · Gas Giant HIP 65407 c · Gas Giant HIP 65407 b · Gas Giant

Host System: HIP 109384

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,180 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.831 R☉

Stellar Mass

0.780 M☉

Metallicity [Fe/H]

-0.26

Extended Stellar Properties

Surface gravity (log g)

4.430 dex

Stellar density

2.234 g/cm³

Systemic radial velocity

-63.68 km/s

Rotational v·sin i

2.70 km/s

Metallicity ratio

[Fe/H]

Distance

58.96 parsec

Light-years 192.30 ly

V-band magnitude

9.61 mag

Voyager-speed travel 3,391,135 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

16.932 mas

Total Proper Motion

249.453 mas/yr

PM Right Ascension

233.68 mas/yr

PM Declination

-87.31 mas/yr

Galactic Cartesian (pc)

x = 0.284 · y = -0.148 · z = 0.947

Equatorial (J2000)

RA 332.40897° · Dec 71.31396°

Galactic ℓ, b

110.643° · 12.414°

Ecliptic λ, β

40.280° · 68.148°

HTM-20 index

-1452130146