Key parameters at a glance

A radius of 15.01 Earth radii
A mass of 562.24 Earth masses
Surface gravity around 2.50 g
An orbital period of 1.549 days
Semi-major axis 0.0285 AU
Equilibrium temperature 2,043 K (1770 °C)
Distance from Earth 1,706.90 light-years
Earth Similarity Index 0.061
Travel time at Voyager 1 speed 30,101,092 years

WASP-114 b Planet Profile

Physical Specs

Radius

15.01 R⊕

Radius (Jupiter)

1.339 R♃

Mass

562.24 M⊕

Mass (Jupiter)

1.769 M♃

Density

0.97 g/cm³

Surface Gravity

2.50 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.061

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility SuperWASP-North

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#232of 1771

top 13.0%

This planet

15.01R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

TOI-2420 b 15.02 R⊕ HATS-53 b 15.02 R⊕ Kepler-412 b 15.03 R⊕

Metric	Earth	WASP-114 b	Jupiter
Radius (R⊕)	1.00	15.01	11.21
Mass (M⊕)	1.00	562.24	317.83
Density (g/cm³)	5.51	0.97	1.33
Surface Gravity (g)	1.00	2.50	2.53
Insolation (S⊕)	1.00	2,978.20	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	562.241 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 466390120

Gaia DR2

Gaia DR2 2726339892542980864

Gaia DR3

Gaia DR3 2726339892542980864

System

WASP-114

Percentile among Gas Giant cohort

Radius 15.009 R⊕ · percentile 87 / cohort 1771

Mass 562.241 M⊕ · percentile 51 / cohort 1747

Orbital period 1.55 d · percentile 3 / cohort 1533

Distance 523.34 pc · percentile 76 / cohort 1759

ESI 0.061 · percentile 9 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1.549 days

Semi-major axis

0.0285 AU

Eccentricity

0.012

Inclination

83.96 °

Year Length

A year here lasts approximately 1.55 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0285 AU.

Transit Fingerprint

Depth

0.927 %

Duration

2.782 h

Impact parameter b

0.457

Rp / R★

0.096300

Transit midpoint (BJD)

2,456,667.7358

Photometric dip

Transit produces a flux drop of 9,270 ppm lasting ≈ 2.78 h.

Extended Orbital Architecture

Planet / star radius ratio

0.096300

Semi-major axis / stellar radius

4.290

Impact parameter (b)

0.457

RV semi-amplitude (K)

260.600 m/s

Transit mid-time (BJD)

2,456,667.7358

Long. of periastron (ω)

-71.00°

Angular separation (arcsec)

0.05450

Eq. Temperature

2,043K

(1770 °C)

Insolation (S⊕)

2,978.20

Earth = 1.00

Earth Similarity (ESI)

0.061

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Barros et al. 2016

Instrument

Andor e2v CCD Camera

Publication

2016-10

Observation locale

Ground

Host System: WASP-114

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,940 K — hotter than the Sun (5,778 K)

Estimated Age

4.30 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.430 R☉

Stellar Mass

1.289 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.300 dex

Stellar density

0.619 g/cm³

Rotational v·sin i

6.40 km/s

Rotation period

9.96 days

Metallicity ratio

[Fe/H]

Distance

523.34 parsec

Light-years 1,706.90 ly

V-band magnitude

12.69 mag

Voyager-speed travel 30,101,092 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.884 mas

Total Proper Motion

10.302 mas/yr

PM Right Ascension

-5.75 mas/yr

PM Declination

-8.55 mas/yr

Galactic Cartesian (pc)

x = 0.831 · y = -0.526 · z = 0.182

Equatorial (J2000)

RA 327.66570° · Dec 10.46294°

Galactic ℓ, b

67.326° · -32.273°

Ecliptic λ, β

333.714° · 22.076°

HTM-20 index

-1393582723