Key parameters at a glance

A radius of 11.99 Earth radii
A mass of 2,688.84 Earth masses
Surface gravity around 18.69 g
An orbital period of 5.644 days
Semi-major axis 0.0694 AU
Equilibrium temperature 1,460 K (1187 °C)
Distance from Earth 1,722.09 light-years
Earth Similarity Index 0.106
Travel time at Voyager 1 speed 30,369,009 years

WASP-150 b Planet Profile

Physical Specs

Radius

11.99 R⊕

Radius (Jupiter)

1.070 R♃

Mass

2,688.84 M⊕

Mass (Jupiter)

8.460 M♃

Density

8.54 g/cm³

Surface Gravity

18.69 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.106

HZ Position Inner

Controversial No

Discovery

Year 2020

Method Transit

Facility SuperWASP-North

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#1510of 1771

top 85.2%

This planet

11.99R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

WASP-158 b 11.99 R⊕ TOI-892 b 11.99 R⊕ NGTS-9 b 11.99 R⊕

Metric	Earth	WASP-150 b	Jupiter
Radius (R⊕)	1.00	11.99	11.21
Mass (M⊕)	1.00	2,688.84	317.83
Density (g/cm³)	5.51	8.54	1.33
Surface Gravity (g)	1.00	18.69	2.53
Insolation (S⊕)	1.00	854.71	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2,688.842 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 321668398

Gaia DR2

Gaia DR2 1416731285125373184

Gaia DR3

Gaia DR3 1416731285125373184

System

WASP-150

Percentile among Gas Giant cohort

Radius 11.994 R⊕ · percentile 15 / cohort 1771

Mass 2,688.842 M⊕ · percentile 85 / cohort 1747

Orbital period 5.64 d · percentile 39 / cohort 1533

Distance 528.00 pc · percentile 76 / cohort 1759

ESI 0.106 · percentile 28 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

5.644 days

Semi-major axis

0.0694 AU

Eccentricity

0.378

Inclination

84.01 °

Year Length

A year here lasts approximately 5.64 Earth days (1.5% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.0694 AU.

Transit Fingerprint

Depth

0.440 %

Duration

3.118 h

Impact parameter b

0.758

Rp / R★

0.065300

Transit midpoint (BJD)

2,457,217.2614

Photometric dip

Transit produces a flux drop of 4,400 ppm lasting ≈ 3.12 h.

Extended Orbital Architecture

Planet / star radius ratio

0.065300

Semi-major axis / stellar radius

11.250

Impact parameter (b)

0.758

Transit mid-time (BJD)

2,457,217.2614

Angular separation (arcsec)

0.13100

Eq. Temperature

1,460K

(1187 °C)

Insolation (S⊕)

854.71

Earth = 1.00

Earth Similarity (ESI)

0.106

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

Cooke et al. 2020

Instrument

Andor e2v CCD Camera

Publication

2020-06

Observation locale

Ground

Discovery cohort

Planets confirmed in 2020 at SuperWASP-North (2 shown).

WASP-148 b · Neptune-like WASP-176 b · Gas Giant

Host System: WASP-150

Spectral Class

F-type yellow-white

Effective Temperature

6,218 K — hotter than the Sun (5,778 K)

Estimated Age

2.95 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.651 R☉

Stellar Mass

1.394 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.147 dex

Stellar density

0.619 g/cm³

Systemic radial velocity

-53.69 km/s

Rotational v·sin i

8.82 km/s

Metallicity ratio

[Fe/H]

Distance

528.00 parsec

Light-years 1,722.09 ly

V-band magnitude

12.03 mag

Voyager-speed travel 30,369,009 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.865 mas

Total Proper Motion

8.209 mas/yr

PM Right Ascension

-4.29 mas/yr

PM Declination

7.00 mas/yr

Galactic Cartesian (pc)

x = -0.060 · y = -0.599 · z = 0.799

Equatorial (J2000)

RA 264.26302° · Dec 53.02128°

Galactic ℓ, b

80.493° · 32.343°

Ecliptic λ, β

255.427° · 76.170°

HTM-20 index

1380363209