Key parameters at a glance

A radius of 12.00 Earth radii
A mass of 7,216.93 Earth masses
Surface gravity around 50.12 g
An orbital period of 394.730 days
Semi-major axis 1.4480 AU
Distance from Earth 399.09 light-years
Earth Similarity Index 0.276
Travel time at Voyager 1 speed 7,037,969 years

HD 180314 b Planet Profile

Physical Specs

Radius

12.00 R⊕

Radius (Jupiter)

1.070 R♃

Mass

7,216.93 M⊕

Mass (Jupiter)

22.707 M♃

Density

22.90 g/cm³

Surface Gravity

50.12 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.276

HZ Position Unknown

Controversial No

Discovery

Year 2010

Method Radial Velocity

Facility Subaru Telescope

Telescope 8.2 m Subaru Telescope

Size rank in cohort

Rank by radius

#1494of 1771

top 84.3%

This planet

12.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 80913 b 12.00 R⊕ HIP 78530 b 12.00 R⊕ HD 221420 b 12.00 R⊕

Metric	Earth	HD 180314 b	Jupiter
Radius (R⊕)	1.00	12.00	11.21
Mass (M⊕)	1.00	7,216.93	317.83
Density (g/cm³)	5.51	22.90	1.33
Surface Gravity (g)	1.00	50.12	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	7,216.930 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 180314

HIP

HIP 94576

TIC

TIC 392658786

Gaia DR2

Gaia DR2 2042983077905233792

Gaia DR3

Gaia DR3 2042983077905233792

System

HD 180314

Percentile among Gas Giant cohort

Radius 12.000 R⊕ · percentile 15 / cohort 1771

Mass 7,216.930 M⊕ · percentile 98 / cohort 1747

Orbital period 394.73 d · percentile 64 / cohort 1533

Distance 122.36 pc · percentile 39 / cohort 1759

ESI 0.276 · percentile 51 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

394.730 days

Semi-major axis

1.4480 AU

Eccentricity

0.247

Inclination

— °

Year Length

A year here lasts about 1.08 Earth years on a mildly elliptical path at a mean orbital distance of 1.4480 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.276

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Sato et al. 2010

Instrument

HDS Spectrograph

Publication

2010-08

Observation locale

Ground

Host System: HD 180314

Spectral Class

K-type orange

Effective Temperature

4,917 K — cooler than the Sun (5,778 K)

Estimated Age

1.29 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

9.200 R☉

Stellar Mass

2.600 M☉

Metallicity [Fe/H]

0.20

Extended Stellar Properties

Surface gravity (log g)

2.980 dex

Systemic radial velocity

-73.19 km/s

Metallicity ratio

[Fe/H]

Distance

122.36 parsec

Light-years 399.09 ly

V-band magnitude

6.62 mag

Voyager-speed travel 7,037,969 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

8.144 mas

Total Proper Motion

51.104 mas/yr

PM Right Ascension

46.71 mas/yr

PM Declination

20.73 mas/yr

Galactic Cartesian (pc)

x = 0.272 · y = -0.804 · z = 0.528

Equatorial (J2000)

RA 288.70944° · Dec 31.86044°

Galactic ℓ, b

64.011° · 9.419°

Ecliptic λ, β

297.285° · 53.542°

HTM-20 index

-1659659829

Similar Worlds

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Gas Giant · K-type orange

Radius 12.00 R⊕ · 150.7 ly

nu Oph c

Gas Giant · K-type orange

Radius 12.00 R⊕ · 150.7 ly

GJ 680 b

Gas Giant · K-type orange

Radius 12.00 R⊕ · 31.5 ly

HD 81817 b

Gas Giant · K-type orange

Radius 12.00 R⊕ · 877.8 ly

HD 81817 c

Gas Giant · K-type orange

Radius 12.00 R⊕ · 877.8 ly

HAT-P-68 b

Gas Giant · K-type orange

Radius 12.02 R⊕ · 659.3 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Subaru Telescope Mission K-type orange Hosts