Key parameters at a glance

A radius of 14.78 Earth radii
A mass of 35.60 Earth masses
Surface gravity around 0.16 g
An orbital period of 6.246 days
Semi-major axis 0.0668 AU
Equilibrium temperature 1,250 K (977 °C)
Distance from Earth 1,180.97 light-years
Earth Similarity Index 0.065
Travel time at Voyager 1 speed 20,826,378 years

WASP-193 b Planet Profile

Physical Specs

Radius

14.78 R⊕

Radius (Jupiter)

1.319 R♃

Mass

35.60 M⊕

Mass (Jupiter)

0.112 M♃

Density

0.06 g/cm³

Surface Gravity

0.16 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.065

HZ Position Inner

Controversial No

Discovery

Year 2023

Method Transit

Facility WASP-South

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#256of 1771

top 14.4%

This planet

14.78R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HAT-P-1 b 14.78 R⊕ HAT-P-53 b 14.77 R⊕ XO-3 b 14.80 R⊕

Metric	Earth	WASP-193 b	Jupiter
Radius (R⊕)	1.00	14.78	11.21
Mass (M⊕)	1.00	35.60	317.83
Density (g/cm³)	5.51	0.06	1.33
Surface Gravity (g)	1.00	0.16	2.53
Insolation (S⊕)	1.00	402.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	35.597 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 49043968

Gaia DR2

Gaia DR2 5453063823882876032

Gaia DR3

Gaia DR3 5453063823882876032

System

WASP-193

Percentile among Gas Giant cohort

Radius 14.785 R⊕ · percentile 86 / cohort 1771

Mass 35.597 M⊕ · percentile 0 / cohort 1747

Orbital period 6.25 d · percentile 40 / cohort 1533

Distance 362.09 pc · percentile 66 / cohort 1759

ESI 0.065 · percentile 11 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

6.246 days

Semi-major axis

0.0668 AU

Eccentricity

0.081

Inclination

89.25 °

Year Length

A year here lasts approximately 6.25 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0668 AU.

Transit Fingerprint

Depth

1.248 %

Duration

4.256 h

Impact parameter b

0.147

Rp / R★

0.111700

Transit midpoint (BJD)

2,459,243.3108

Photometric dip

Transit produces a flux drop of 12,480 ppm lasting ≈ 4.26 h.

Extended Orbital Architecture

Planet / star radius ratio

0.111700

Semi-major axis / stellar radius

11.860

Impact parameter (b)

0.147

RV semi-amplitude (K)

12.300 m/s

Transit mid-time (BJD)

2,459,243.3108

Long. of periastron (ω)

42.00°

Sky-projected obliquity (λ)

16.00°

Angular separation (arcsec)

0.18400

Eq. Temperature

1,250K

(977 °C)

Insolation (S⊕)

402.00

Earth = 1.00

Earth Similarity (ESI)

0.065

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. 2023

Instrument

iKon-L CCD Camera

Publication

2023-07

Observation locale

Ground

Host System: WASP-193

Spectral Class

F-type yellow-white

Effective Temperature

6,080 K — hotter than the Sun (5,778 K)

Estimated Age

6.80 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.213 R☉

Stellar Mass

1.018 M☉

Metallicity [Fe/H]

-0.11

Extended Stellar Properties

Surface gravity (log g)

4.280 dex

Stellar density

0.810 g/cm³

Systemic radial velocity

-2.78 km/s

Rotational v·sin i

5.11 km/s

Activity index (log R'HK)

5.300

Metallicity ratio

[Fe/H]

Distance

362.09 parsec

Light-years 1,180.97 ly

V-band magnitude

11.97 mag

Voyager-speed travel 20,826,378 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

2.734 mas

Total Proper Motion

49.046 mas/yr

PM Right Ascension

-49.03 mas/yr

PM Declination

1.23 mas/yr

Galactic Cartesian (pc)

x = -0.834 · y = 0.234 · z = -0.500

Equatorial (J2000)

RA 164.34914° · Dec -29.99712°

Galactic ℓ, b

275.369° · 26.701°

Ecliptic λ, β

178.932° · -33.479°

HTM-20 index

2025853032