Key parameters at a glance

A radius of 9.86 Earth radii
A mass of 174.81 Earth masses
Surface gravity around 1.80 g
An orbital period of 4.305 days
Semi-major axis 0.0555 AU
Equilibrium temperature 1,479 K (1206 °C)
Distance from Earth 1,405.90 light-years
Earth Similarity Index 0.080
Travel time at Voyager 1 speed 24,793,080 years

WASP-60 b Planet Profile

Physical Specs

Radius

9.86 R⊕

Radius (Jupiter)

0.880 R♃

Mass

174.81 M⊕

Mass (Jupiter)

0.550 M♃

Density

0.38 g/cm³

Surface Gravity

1.80 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.080

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

#11of 574

top 1.7%

This planet

9.86R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

TOI-5300 b 9.86 R⊕ TOI-2416 b 9.86 R⊕ KMT-2021-BLG-1077L b 9.86 R⊕

Metric	Earth	WASP-60 b	Jupiter
Radius (R⊕)	1.00	9.86	11.21
Mass (M⊕)	1.00	174.81	317.83
Density (g/cm³)	5.51	0.38	1.33
Surface Gravity (g)	1.00	1.80	2.53
Insolation (S⊕)	1.00	925.49	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	174.807 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 288246496

Gaia DR2

Gaia DR2 2868528637464028160

Gaia DR3

Gaia DR3 2868528637464028160

System

WASP-60

Percentile among Neptune-like cohort

Radius 9.864 R⊕ · percentile 98 / cohort 574

Mass 174.807 M⊕ · percentile 95 / cohort 574

Orbital period 4.31 d · percentile 16 / cohort 524

Distance 431.05 pc · percentile 54 / cohort 572

ESI 0.080 · percentile 1 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

4.305 days

Semi-major axis

0.0555 AU

Eccentricity

0.000

Inclination

87.90 °

Year Length

A year here lasts approximately 4.31 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0555 AU.

Transit Fingerprint

Depth

0.600 %

Duration

3.531 h

Impact parameter b

0.370

Rp / R★

0.077000

Transit midpoint (BJD)

2,456,952.4326

Photometric dip

Transit produces a flux drop of 6,000 ppm lasting ≈ 3.53 h.

Extended Orbital Architecture

Planet / star radius ratio

0.077000

Semi-major axis / stellar radius

10.040

Impact parameter (b)

0.370

RV semi-amplitude (K)

60.800 m/s

Transit mid-time (BJD)

2,456,952.4326

Sky-projected obliquity (λ)

-129.00°

Angular separation (arcsec)

0.12900

Eq. Temperature

1,479K

(1206 °C)

Insolation (S⊕)

925.49

Earth = 1.00

Earth Similarity (ESI)

0.080

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

Hebrard et al. 2013

Instrument

iKon-L CCD Camera

Publication

2013-01

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-60

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,900 K — hotter than the Sun (5,778 K)

Estimated Age

1.70 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.170 R☉

Stellar Mass

1.190 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.200 dex

Stellar density

1.030 g/cm³

Systemic radial velocity

-26.63 km/s

Rotational v·sin i

3.80 km/s

Metallicity ratio

[Fe/H]

Distance

431.05 parsec

Light-years 1,405.90 ly

V-band magnitude

11.67 mag

Voyager-speed travel 24,793,080 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.292 mas

Total Proper Motion

30.823 mas/yr

PM Right Ascension

30.26 mas/yr

PM Declination

-5.85 mas/yr

Galactic Cartesian (pc)

x = 0.854 · y = -0.050 · z = 0.517

Equatorial (J2000)

RA 356.66671° · Dec 31.15591°

Galactic ℓ, b

106.985° · -29.702°

Ecliptic λ, β

10.613° · 29.635°

HTM-20 index

-475136453