Key parameters at a glance

A radius of 14.46 Earth radii
A mass of 731.01 Earth masses
Surface gravity around 3.50 g
An orbital period of 2.217 days
Semi-major axis 0.0371 AU
Equilibrium temperature 2,210 K (1937 °C)
Distance from Earth 1,417.98 light-years
Earth Similarity Index 0.053
Travel time at Voyager 1 speed 25,006,010 years

WASP-72 b Planet Profile

Physical Specs

Radius

14.46 R⊕

Radius (Jupiter)

1.290 R♃

Mass

731.01 M⊕

Mass (Jupiter)

2.300 M♃

Density

0.87 g/cm³

Surface Gravity

3.50 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.053

HZ Position Inner

Controversial No

Discovery

Year 2012

Method Transit

Facility SuperWASP

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#282of 1771

top 15.9%

This planet

14.46R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

TOI-3980 b 14.46 R⊕ TOI-2583 A b 14.46 R⊕ HD 203030 b 14.46 R⊕

Metric	Earth	WASP-72 b	Jupiter
Radius (R⊕)	1.00	14.46	11.21
Mass (M⊕)	1.00	731.01	317.83
Density (g/cm³)	5.51	0.87	1.33
Surface Gravity (g)	1.00	3.50	2.53
Insolation (S⊕)	1.00	6,233.79	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	731.009 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 122612091

Gaia DR2

Gaia DR2 5065640460769428224

Gaia DR3

Gaia DR3 5065640460769428224

System

WASP-72

Percentile among Gas Giant cohort

Radius 14.460 R⊕ · percentile 84 / cohort 1771

Mass 731.009 M⊕ · percentile 59 / cohort 1747

Orbital period 2.22 d · percentile 9 / cohort 1533

Distance 434.75 pc · percentile 72 / cohort 1759

ESI 0.053 · percentile 6 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

2.217 days

Semi-major axis

0.0371 AU

Eccentricity

0.000

Inclination

86.80 °

Year Length

A year here lasts approximately 2.22 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0371 AU.

Transit Fingerprint

Depth

0.370 %

Duration

3.879 h

Impact parameter b

0.677

Rp / R★

0.065600

Transit midpoint (BJD)

2,458,789.0630

Photometric dip

Transit produces a flux drop of 3,700 ppm lasting ≈ 3.88 h.

Extended Orbital Architecture

Planet / star radius ratio

0.065600

Semi-major axis / stellar radius

4.610

Impact parameter (b)

0.677

RV semi-amplitude (K)

181.300 m/s

Transit mid-time (BJD)

2,458,789.0630

Sky-projected obliquity (λ)

-7.00°

Angular separation (arcsec)

0.08540

Eq. Temperature

2,210K

(1937 °C)

Insolation (S⊕)

6,233.79

Earth = 1.00

Earth Similarity (ESI)

0.053

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

Gillon et al. 2013

Instrument

iKon-L CCD Camera

Publication

2013-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2012 at SuperWASP (12 shown).

WASP-59 b · Neptune-like WASP-80 b · Gas Giant WASP-42 b · Gas Giant WASP-67 b · Gas Giant WASP-56 b · Gas Giant WASP-47 b · Gas Giant WASP-41 b · Gas Giant WASP-57 b · Gas Giant WASP-58 b · Gas Giant WASP-52 b · Gas Giant WASP-55 b · Gas Giant WASP-61 b · Gas Giant

Host System: WASP-72

Spectral Class

F-type yellow-white

Effective Temperature

6,250 K — hotter than the Sun (5,778 K)

Estimated Age

3.20 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.180 R☉

Stellar Mass

2.780 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

4.090 dex

Stellar density

0.380 g/cm³

Systemic radial velocity

35.92 km/s

Rotational v·sin i

6.00 km/s

Metallicity ratio

[Fe/H]

Distance

434.75 parsec

Light-years 1,417.98 ly

V-band magnitude

10.87 mag

Voyager-speed travel 25,006,010 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

2.272 mas

Total Proper Motion

10.796 mas/yr

PM Right Ascension

7.45 mas/yr

PM Declination

-7.82 mas/yr

Galactic Cartesian (pc)

x = 0.652 · y = 0.568 · z = -0.503

Equatorial (J2000)

RA 41.04008° · Dec -30.16908°

Galactic ℓ, b

226.665° · -65.147°

Ecliptic λ, β

26.199° · -43.384°

HTM-20 index

-1687264737