Key parameters at a glance

A radius of 16.48 Earth radii
A mass of 159.55 Earth masses
Surface gravity around 0.59 g
An orbital period of 4.112 days
Semi-major axis 0.0463 AU
Equilibrium temperature 1,111 K (838 °C)
Distance from Earth 1,061.24 light-years
Earth Similarity Index 0.093
Travel time at Voyager 1 speed 18,714,907 years

WASP-183 b Planet Profile

Physical Specs

Radius

16.48 R⊕

Radius (Jupiter)

1.470 R♃

Mass

159.55 M⊕

Mass (Jupiter)

0.502 M♃

Density

0.21 g/cm³

Surface Gravity

0.59 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.093

HZ Position Inner

Controversial No

Discovery

Year 2019

Method Transit

Facility SuperWASP

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#132of 1771

top 7.4%

This planet

16.48R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

GPX-1 b 16.48 R⊕ TOI-2295 b 16.48 R⊕ TOI-3023 b 16.43 R⊕

Metric	Earth	WASP-183 b	Jupiter
Radius (R⊕)	1.00	16.48	11.21
Mass (M⊕)	1.00	159.55	317.83
Density (g/cm³)	5.51	0.21	1.33
Surface Gravity (g)	1.00	0.59	2.53
Insolation (S⊕)	1.00	268.72	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	159.551 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 14344979

Gaia DR2

Gaia DR2 3803004978659671040

Gaia DR3

Gaia DR3 3803004978659671040

System

WASP-183

Percentile among Gas Giant cohort

Radius 16.477 R⊕ · percentile 93 / cohort 1771

Mass 159.551 M⊕ · percentile 13 / cohort 1747

Orbital period 4.11 d · percentile 30 / cohort 1533

Distance 325.38 pc · percentile 63 / cohort 1759

ESI 0.093 · percentile 24 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4.112 days

Semi-major axis

0.0463 AU

Eccentricity

—

Inclination

85.37 °

Year Length

A year here lasts approximately 4.11 Earth days (1.1% of a terrestrial year) at a mean orbital distance of 0.0463 AU.

Transit Fingerprint

Depth

2.260 %

Duration

2.016 h

Impact parameter b

0.916

Rp / R★

0.195000

Transit midpoint (BJD)

2,457,796.1845

Photometric dip

Transit produces a flux drop of 22,600 ppm lasting ≈ 2.02 h.

Extended Orbital Architecture

Planet / star radius ratio

0.195000

Semi-major axis / stellar radius

11.440

Impact parameter (b)

0.916

RV semi-amplitude (K)

74.800 m/s

Transit mid-time (BJD)

2,457,796.1845

Angular separation (arcsec)

0.14200

Eq. Temperature

1,111K

(838 °C)

Insolation (S⊕)

268.72

Earth = 1.00

Earth Similarity (ESI)

0.093

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

Turner et al. 2019

Instrument

iKon-L CCD Camera

Publication

2019-06

Observation locale

Ground

Discovery cohort

Planets confirmed in 2019 at SuperWASP (3 shown).

WASP-181 b · Gas Giant WASP-177 b · Gas Giant WASP-180 A b · Gas Giant

Host System: WASP-183

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,313 K — cooler than the Sun (5,778 K)

Estimated Age

14.90 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.871 R☉

Stellar Mass

0.784 M☉

Metallicity [Fe/H]

-0.31

Extended Stellar Properties

Surface gravity (log g)

4.452 dex

Stellar density

1.680 g/cm³

Systemic radial velocity

68.71 km/s

Rotational v·sin i

1.00 km/s

Metallicity ratio

[Fe/H]

Distance

325.38 parsec

Light-years 1,061.24 ly

V-band magnitude

13.08 mag

Voyager-speed travel 18,714,907 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

3.045 mas

Total Proper Motion

36.991 mas/yr

PM Right Ascension

-28.12 mas/yr

PM Declination

24.03 mas/yr

Galactic Cartesian (pc)

x = -0.960 · y = 0.279 · z = -0.013

Equatorial (J2000)

RA 163.78885° · Dec -0.73707°

Galactic ℓ, b

253.089° · 50.528°

Ecliptic λ, β

165.346° · -7.056°

HTM-20 index

1292074507