Confirmed Exoplanet Discovered 2011

WASP-35 b

A gas giant orbiting the g-type yellow (sun-like) WASP-35, located approximately 659.5 light-years from Earth.

Key parameters at a glance

  • A radius of 14.57 Earth radii
  • A mass of 225.66 Earth masses
  • Surface gravity around 1.06 g
  • An orbital period of 3.162 days
  • Semi-major axis 0.0432 AU
  • Equilibrium temperature 1,338 K (1065 °C)
  • Distance from Earth 659.55 light-years
  • Earth Similarity Index 0.087
  • Travel time at Voyager 1 speed 11,631,096 years

WASP-35 b Planet Profile

Physical Specs

Radius
14.57 R⊕
Radius (Jupiter)
1.300 R♃
Mass
225.66 M⊕
Mass (Jupiter)
0.710 M♃
Density
0.38 g/cm³
Surface Gravity
1.06 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.087
HZ Position Inner
Controversial No

Discovery

Year 2011
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

Metric Earth WASP-35 b Jupiter
Radius (R⊕)1.0014.5711.21
Mass (M⊕)1.00225.66317.83
Density (g/cm³)5.510.381.33
Surface Gravity (g)1.001.062.53
Insolation (S⊕)1.00758.100.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 225.659 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 43647325

Gaia DR2

Gaia DR2 3211188618762023424

Gaia DR3

Gaia DR3 3211188618762023424

System

WASP-35

Percentile among Gas Giant cohort

Radius 14.572 R⊕ · percentile 84 / cohort 1771
Mass 225.659 M⊕ · percentile 24 / cohort 1747
Orbital period 3.16 d · percentile 18 / cohort 1533
Distance 202.22 pc · percentile 51 / cohort 1759
ESI 0.087 · percentile 21 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
3.162 days
Semi-major axis
0.0432 AU
Eccentricity
0.000
Inclination
87.96 °

Year Length

A year here lasts approximately 3.16 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0432 AU.

Transit Fingerprint

Depth

1.500 %

Duration

3.143 h

Impact parameter b

0.257

Rp / R★

0.124100

Transit midpoint (BJD)

2,458,120.8044

Photometric dip

Transit produces a flux drop of 15,000 ppm lasting ≈ 3.14 h.

Extended Orbital Architecture

Planet / star radius ratio

0.124100

Semi-major axis / stellar radius

8.530

Impact parameter (b)

0.257

RV semi-amplitude (K)

94.800 m/s

Transit mid-time (BJD)

2,458,120.8044

Angular separation (arcsec)

0.21300

Eq. Temperature

1,338K

(1065 °C)

Insolation (S⊕)

758.10

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

Enoch et al. 2011

Instrument

iKon-L CCD Camera

Publication

2011-09

Observation locale

Ground

Host System: WASP-35

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,990 K — hotter than the Sun (5,778 K)

Estimated Age

5.00 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.080 R☉

Stellar Mass

1.050 M☉

Metallicity [Fe/H]

-0.15

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

1.170 g/cm³

Systemic radial velocity

17.72 km/s

Rotational v·sin i

3.90 km/s

Metallicity ratio

[Fe/H]

Distance
202.22 parsec
Light-years 659.55 ly
V-band magnitude
10.94 mag
Voyager-speed travel 11,631,096 yr

Multi-band Host Photometry — 11 bands

8.311.511.55B10.94V10.85Gaia10.44TESS9.89J9.60H9.53K9.48W19.53W29.53W38.34W4

Astrometric Data

Parallax

4.917 mas

Total Proper Motion

23.326 mas/yr

PM Right Ascension

20.66 mas/yr

PM Declination

10.82 mas/yr

Galactic Cartesian (pc)

x = 0.239 · y = 0.965 · z = -0.109

Equatorial (J2000)

RA 76.08189° · Dec -6.22978°

Galactic ℓ, b

206.016° · -26.620°

Ecliptic λ, β

74.145° · -28.906°

HTM-20 index

-1031804282

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