Key parameters at a glance

A radius of 14.57 Earth radii
A mass of 603.88 Earth masses
Surface gravity around 2.84 g
An orbital period of 1.401 days
Semi-major axis 0.0243 AU
Equilibrium temperature 1,404 K (1131 °C)
Distance from Earth 972.64 light-years
Earth Similarity Index 0.099
Travel time at Voyager 1 speed 17,152,556 years

WASP-135 b Planet Profile

Physical Specs

Radius

14.57 R⊕

Radius (Jupiter)

1.300 R♃

Mass

603.88 M⊕

Mass (Jupiter)

1.900 M♃

Density

1.16 g/cm³

Surface Gravity

2.84 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.099

HZ Position Inner

Controversial No

Discovery

Year 2015

Method Transit

Facility SuperWASP

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#270of 1771

top 15.2%

This planet

14.57R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

K2-132 b 14.57 R⊕ HATS-16 b 14.57 R⊕ HAT-P-24 b 14.57 R⊕

Metric	Earth	WASP-135 b	Jupiter
Radius (R⊕)	1.00	14.57	11.21
Mass (M⊕)	1.00	603.88	317.83
Density (g/cm³)	5.51	1.16	1.33
Surface Gravity (g)	1.00	2.84	2.53
Insolation (S⊕)	1.00	917.41	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	603.877 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 308172249

Gaia DR2

Gaia DR2 4596481632339898240

Gaia DR3

Gaia DR3 4596481632339898240

System

WASP-135

Percentile among Gas Giant cohort

Radius 14.572 R⊕ · percentile 84 / cohort 1771

Mass 603.877 M⊕ · percentile 53 / cohort 1747

Orbital period 1.40 d · percentile 2 / cohort 1533

Distance 298.21 pc · percentile 60 / cohort 1759

ESI 0.099 · percentile 26 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1.401 days

Semi-major axis

0.0243 AU

Eccentricity

0.000

Inclination

82.00 °

Year Length

A year here lasts approximately 1.40 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0243 AU.

Transit Fingerprint

Depth

1.940 %

Duration

1.656 h

Impact parameter b

0.800

Rp / R★

0.140600

Transit midpoint (BJD)

2,455,230.9902

Photometric dip

Transit produces a flux drop of 19,400 ppm lasting ≈ 1.66 h.

Extended Orbital Architecture

Planet / star radius ratio

0.140600

Semi-major axis / stellar radius

5.530

Impact parameter (b)

0.800

RV semi-amplitude (K)

346.000 m/s

Transit mid-time (BJD)

2,455,230.9902

Angular separation (arcsec)

0.08150

Eq. Temperature

1,404K

(1131 °C)

Insolation (S⊕)

917.41

Earth = 1.00

Earth Similarity (ESI)

0.099

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

Spake et al. 2016

Instrument

iKon-L CCD Camera

Publication

2016-02

Observation locale

Ground

Discovery cohort

Planets confirmed in 2015 at SuperWASP (5 shown).

WASP-89 b · Gas Giant WASP-83 b · Gas Giant WASP-20 b · Gas Giant WASP-74 b · Gas Giant WASP-82 b · Gas Giant

Host System: WASP-135

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,675 K — cooler than the Sun (5,778 K)

Estimated Age

0.60 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.960 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.470 dex

Stellar density

1.580 g/cm³

Systemic radial velocity

-32.33 km/s

Rotational v·sin i

4.67 km/s

Metallicity ratio

[Fe/H]

Distance

298.21 parsec

Light-years 972.64 ly

V-band magnitude

13.18 mag

Voyager-speed travel 17,152,556 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

3.324 mas

Total Proper Motion

21.848 mas/yr

PM Right Ascension

-18.20 mas/yr

PM Declination

-12.09 mas/yr

Galactic Cartesian (pc)

x = -0.041 · y = -0.866 · z = 0.498

Equatorial (J2000)

RA 267.28488° · Dec 29.87904°

Galactic ℓ, b

54.917° · 25.744°

Ecliptic λ, β

266.057° · 53.281°

HTM-20 index

-905600237