Key parameters at a glance

A radius of 14.24 Earth radii
A mass of 340.06 Earth masses
Surface gravity around 1.68 g
An orbital period of 2.484 days
Semi-major axis 0.0375 AU
Equilibrium temperature 1,710 K (1437 °C)
Distance from Earth 958.90 light-years
Earth Similarity Index 0.073
Travel time at Voyager 1 speed 16,910,234 years

WASP-75 b Planet Profile

Physical Specs

Radius

14.24 R⊕

Radius (Jupiter)

1.270 R♃

Mass

340.06 M⊕

Mass (Jupiter)

1.070 M♃

Density

0.69 g/cm³

Surface Gravity

1.68 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.073

HZ Position Inner

Controversial No

Discovery

Year 2013

Method Transit

Facility SuperWASP

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#331of 1771

top 18.6%

This planet

14.24R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

WASP-140 b 14.24 R⊕ WASP-52 b 14.24 R⊕ WASP-64 b 14.25 R⊕

Metric	Earth	WASP-75 b	Jupiter
Radius (R⊕)	1.00	14.24	11.21
Mass (M⊕)	1.00	340.06	317.83
Density (g/cm³)	5.51	0.69	1.33
Surface Gravity (g)	1.00	1.68	2.53
Insolation (S⊕)	1.00	1,657.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	340.060 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 36592530

Gaia DR2

Gaia DR2 2605161444735454464

Gaia DR3

Gaia DR3 2605161444735454464

System

WASP-75

Percentile among Gas Giant cohort

Radius 14.235 R⊕ · percentile 81 / cohort 1771

Mass 340.060 M⊕ · percentile 37 / cohort 1747

Orbital period 2.48 d · percentile 10 / cohort 1533

Distance 294.00 pc · percentile 59 / cohort 1759

ESI 0.073 · percentile 15 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

2.484 days

Semi-major axis

0.0375 AU

Eccentricity

0.000

Inclination

82.00 °

Year Length

A year here lasts approximately 2.48 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0375 AU.

Transit Fingerprint

Depth

1.070 %

Duration

1.973 h

Impact parameter b

0.882

Rp / R★

0.103100

Transit midpoint (BJD)

2,456,016.2669

Photometric dip

Transit produces a flux drop of 10,700 ppm lasting ≈ 1.97 h.

Extended Orbital Architecture

Planet / star radius ratio

0.103100

Semi-major axis / stellar radius

6.370

Impact parameter (b)

0.882

RV semi-amplitude (K)

146.000 m/s

Transit mid-time (BJD)

2,456,016.2669

Angular separation (arcsec)

0.12800

Eq. Temperature

1,710K

(1437 °C)

Insolation (S⊕)

1,657.00

Earth = 1.00

Earth Similarity (ESI)

0.073

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

Gomez et al. 2013

Instrument

iKon-L CCD Camera

Publication

2013-11

Observation locale

Ground

Discovery cohort

Planets confirmed in 2013 at SuperWASP (2 shown).

WASP-8 c · Gas Giant WASP-65 b · Gas Giant

Host System: WASP-75

Spectral Class

F-type yellow-white

Effective Temperature

6,100 K — hotter than the Sun (5,778 K)

Estimated Age

3.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.260 R☉

Stellar Mass

1.140 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.290 dex

Stellar density

0.790 g/cm³

Systemic radial velocity

2.26 km/s

Rotational v·sin i

4.30 km/s

Metallicity ratio

[Fe/H]

Distance

294.00 parsec

Light-years 958.90 ly

V-band magnitude

11.59 mag

Voyager-speed travel 16,910,234 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

3.373 mas

Total Proper Motion

48.345 mas/yr

PM Right Ascension

45.79 mas/yr

PM Declination

15.52 mas/yr

Galactic Cartesian (pc)

x = 0.937 · y = -0.297 · z = -0.185

Equatorial (J2000)

RA 342.38590° · Dec -10.67547°

Galactic ℓ, b

56.878° · -56.955°

Ecliptic λ, β

339.693° · -2.962°

HTM-20 index

-2002469868