Key parameters at a glance

A radius of 13.47 Earth radii
A mass of 594.34 Earth masses
Surface gravity around 3.27 g
An orbital period of 1.610 days
Semi-major axis 0.0266 AU
Equilibrium temperature 1,638 K (1365 °C)
Distance from Earth 852.53 light-years
Earth Similarity Index 0.087
Travel time at Voyager 1 speed 15,034,297 years

WASP-163 b Planet Profile

Physical Specs

Radius

13.47 R⊕

Radius (Jupiter)

1.202 R♃

Mass

594.34 M⊕

Mass (Jupiter)

1.870 M♃

Density

1.42 g/cm³

Surface Gravity

3.27 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.087

HZ Position Inner

Controversial No

Discovery

Year 2018

Method Transit

Facility SuperWASP-South

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#722of 1771

top 40.7%

This planet

13.47R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Kepler-87 b 13.49 R⊕ WASP-173 A b 13.45 R⊕ K2-97 b 13.45 R⊕

Metric	Earth	WASP-163 b	Jupiter
Radius (R⊕)	1.00	13.47	11.21
Mass (M⊕)	1.00	594.34	317.83
Density (g/cm³)	5.51	1.42	1.33
Surface Gravity (g)	1.00	3.27	2.53
Insolation (S⊕)	1.00	1,200.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	594.342 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 145368316

Gaia DR2

Gaia DR2 4334991786994866304

Gaia DR3

Gaia DR3 4334991786994866304

System

WASP-163

Percentile among Gas Giant cohort

Radius 13.473 R⊕ · percentile 59 / cohort 1771

Mass 594.342 M⊕ · percentile 53 / cohort 1747

Orbital period 1.61 d · percentile 4 / cohort 1533

Distance 261.39 pc · percentile 56 / cohort 1759

ESI 0.087 · percentile 21 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1.610 days

Semi-major axis

0.0266 AU

Eccentricity

—

Inclination

85.42 °

Year Length

A year here lasts approximately 1.61 Earth days (0.4% of a terrestrial year) at a mean orbital distance of 0.0266 AU.

Transit Fingerprint

Depth

1.417 %

Duration

2.232 h

Impact parameter b

0.448

Rp / R★

0.119000

Transit midpoint (BJD)

2,457,918.4620

Photometric dip

Transit produces a flux drop of 14,170 ppm lasting ≈ 2.23 h.

Extended Orbital Architecture

Planet / star radius ratio

0.119000

Semi-major axis / stellar radius

5.620

Impact parameter (b)

0.448

RV semi-amplitude (K)

329.000 m/s

Transit mid-time (BJD)

2,457,918.4620

Angular separation (arcsec)

0.10200

Eq. Temperature

1,638K

(1365 °C)

Insolation (S⊕)

1,200.00

Earth = 1.00

Earth Similarity (ESI)

0.087

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

Barkaoui et al. 2019

Instrument

iKon-L CCD Camera

Publication

2019-02

Observation locale

Ground

Discovery cohort

Planets confirmed in 2018 at SuperWASP-South (12 shown).

WASP-162 b · Gas Giant WASP-145 A b · Gas Giant WASP-144 b · Neptune-like WASP-170 b · Gas Giant WASP-160 B b · Gas Giant WASP-158 b · Gas Giant WASP-161 b · Gas Giant WASP-164 b · Gas Giant WASP-147 b · Gas Giant WASP-173 A b · Gas Giant WASP-165 b · Gas Giant WASP-168 b · Gas Giant

Host System: WASP-163

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,500 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.015 R☉

Stellar Mass

0.970 M☉

Metallicity [Fe/H]

-0.34

Extended Stellar Properties

Surface gravity (log g)

4.411 dex

Stellar density

1.300 g/cm³

Systemic radial velocity

-37.64 km/s

Rotational v·sin i

5.00 km/s

Metallicity ratio

[Fe/H]

Distance

261.39 parsec

Light-years 852.53 ly

V-band magnitude

12.66 mag

Voyager-speed travel 15,034,297 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

3.798 mas

Total Proper Motion

5.360 mas/yr

PM Right Ascension

0.02 mas/yr

PM Declination

-5.36 mas/yr

Galactic Cartesian (pc)

x = -0.229 · y = -0.957 · z = -0.181

Equatorial (J2000)

RA 256.53755° · Dec -10.41301°

Galactic ℓ, b

10.734° · 17.801°

Ecliptic λ, β

256.438° · 12.395°

HTM-20 index

990237507