Key parameters at a glance

A radius of 15.79 Earth radii
A mass of 150.97 Earth masses
Surface gravity around 0.61 g
An orbital period of 4.542 days
Semi-major axis 0.0589 AU
Equilibrium temperature 1,496 K (1223 °C)
Distance from Earth 1,419.29 light-years
Earth Similarity Index 0.068
Travel time at Voyager 1 speed 25,029,132 years

WASP-113 b Planet Profile

Physical Specs

Radius

15.79 R⊕

Radius (Jupiter)

1.409 R♃

Mass

150.97 M⊕

Mass (Jupiter)

0.475 M♃

Density

0.23 g/cm³

Surface Gravity

0.61 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.068

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

#179of 1771

top 10.1%

This planet

15.79R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

CoRoT-36 b 15.80 R⊕ WASP-15 b 15.80 R⊕ WASP-63 b 15.80 R⊕

Metric	Earth	WASP-113 b	Jupiter
Radius (R⊕)	1.00	15.79	11.21
Mass (M⊕)	1.00	150.97	317.83
Density (g/cm³)	5.51	0.23	1.33
Surface Gravity (g)	1.00	0.61	2.53
Insolation (S⊕)	1.00	821.41	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	150.969 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 310003988

Gaia DR2

Gaia DR2 1587399232335653760

Gaia DR3

Gaia DR3 1587399232335653760

System

WASP-113

Percentile among Gas Giant cohort

Radius 15.793 R⊕ · percentile 90 / cohort 1771

Mass 150.969 M⊕ · percentile 12 / cohort 1747

Orbital period 4.54 d · percentile 34 / cohort 1533

Distance 435.16 pc · percentile 72 / cohort 1759

ESI 0.068 · percentile 12 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4.542 days

Semi-major axis

0.0589 AU

Eccentricity

0.000

Inclination

86.46 °

Year Length

A year here lasts approximately 4.54 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0588 AU.

Transit Fingerprint

Depth

0.809 %

Duration

4.298 h

Impact parameter b

0.486

Rp / R★

0.091700

Transit midpoint (BJD)

2,457,197.0975

Photometric dip

Transit produces a flux drop of 8,090 ppm lasting ≈ 4.30 h.

Extended Orbital Architecture

Planet / star radius ratio

0.091700

Semi-major axis / stellar radius

7.870

Impact parameter (b)

0.486

RV semi-amplitude (K)

48.740 m/s

Transit mid-time (BJD)

2,457,197.0975

Long. of periastron (ω)

0.00°

Angular separation (arcsec)

0.13500

Eq. Temperature

1,496K

(1223 °C)

Insolation (S⊕)

821.41

Earth = 1.00

Earth Similarity (ESI)

0.068

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-113

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,890 K — hotter than the Sun (5,778 K)

Estimated Age

6.20 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.608 R☉

Stellar Mass

1.318 M☉

Metallicity [Fe/H]

0.10

Extended Stellar Properties

Surface gravity (log g)

4.200 dex

Stellar density

0.447 g/cm³

Systemic radial velocity

-11.05 km/s

Rotational v·sin i

6.80 km/s

Rotation period

10.56 days

Metallicity ratio

[Fe/H]

Distance

435.16 parsec

Light-years 1,419.29 ly

V-band magnitude

11.76 mag

Voyager-speed travel 25,029,132 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.269 mas

Total Proper Motion

9.486 mas/yr

PM Right Ascension

5.32 mas/yr

PM Declination

-7.85 mas/yr

Galactic Cartesian (pc)

x = -0.484 · y = -0.482 · z = 0.731

Equatorial (J2000)

RA 224.87286° · Dec 46.96010°

Galactic ℓ, b

79.828° · 58.029°

Ecliptic λ, β

197.342° · 59.554°

HTM-20 index

-1009143189