Key parameters at a glance

A radius of 10.31 Earth radii
A mass of 33.05 Earth masses
Surface gravity around 0.31 g
An orbital period of 5.052 days
Semi-major axis 0.0630 AU
Equilibrium temperature 1,522 K (1249 °C)
Distance from Earth 1,581.37 light-years
Earth Similarity Index 0.069
Travel time at Voyager 1 speed 27,887,527 years

WASP-195 b Planet Profile

Physical Specs

Radius

10.31 R⊕

Radius (Jupiter)

0.920 R♃

Mass

33.05 M⊕

Mass (Jupiter)

0.104 M♃

Density

0.16 g/cm³

Surface Gravity

0.31 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.069

HZ Position Inner

Controversial No

Discovery

Year 2025

Method Transit

Facility SuperWASP

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#1742of 1771

top 98.3%

This planet

10.31R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

TOI-1386 c 10.30 R⊕ OGLE-2017-BLG-0364L b 10.30 R⊕ TOI-1338 c 10.30 R⊕

Metric	Earth	WASP-195 b	Jupiter
Radius (R⊕)	1.00	10.31	11.21
Mass (M⊕)	1.00	33.05	317.83
Density (g/cm³)	5.51	0.16	1.33
Surface Gravity (g)	1.00	0.31	2.53
Insolation (S⊕)	1.00	890.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	33.054 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 232567319

Gaia DR2

Gaia DR2 1411707818360668416

Gaia DR3

Gaia DR3 1411707818360668416

System

WASP-195

Percentile among Gas Giant cohort

Radius 10.312 R⊕ · percentile 2 / cohort 1771

Mass 33.054 M⊕ · percentile 0 / cohort 1747

Orbital period 5.05 d · percentile 37 / cohort 1533

Distance 484.85 pc · percentile 74 / cohort 1759

ESI 0.069 · percentile 13 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

5.052 days

Semi-major axis

0.0630 AU

Eccentricity

0.000

Inclination

86.30 °

Year Length

A year here lasts approximately 5.05 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0630 AU.

Transit Fingerprint

Depth

0.360 %

Duration

3.743 h

Impact parameter b

0.550

Rp / R★

0.060000

Transit midpoint (BJD)

2,457,357.2386

Photometric dip

Transit produces a flux drop of 3,602 ppm lasting ≈ 3.74 h.

Extended Orbital Architecture

Planet / star radius ratio

0.060000

Semi-major axis / stellar radius

8.570

Impact parameter (b)

0.550

RV semi-amplitude (K)

10.320 m/s

Transit mid-time (BJD)

2,457,357.2386

Angular separation (arcsec)

0.13000

Eq. Temperature

1,522K

(1249 °C)

Insolation (S⊕)

890.00

Earth = 1.00

Earth Similarity (ESI)

0.069

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

Schanche et al. 2025

Instrument

e2v CCD Camera

Publication

2025-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2025 at SuperWASP (8 shown).

WASP-154 b · Gas Giant WASP-155 b · Gas Giant WASP-116 b · Gas Giant WASP-188 b · Gas Giant WASP-197 b · Gas Giant WASP-194 b · Gas Giant WASP-102 b · Gas Giant WASP-149 b · Gas Giant

Host System: WASP-195

Spectral Class

F-type yellow-white

Effective Temperature

6,300 K — hotter than the Sun (5,778 K)

Estimated Age

0.60 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.578 R☉

Stellar Mass

1.300 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

4.140 dex

Stellar density

0.466 g/cm³

Metallicity ratio

[Fe/H]

Distance

484.85 parsec

Light-years 1,581.37 ly

V-band magnitude

11.95 mag

Voyager-speed travel 27,887,527 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

2.034 mas

Total Proper Motion

14.946 mas/yr

PM Right Ascension

-3.96 mas/yr

PM Declination

14.41 mas/yr

Galactic Cartesian (pc)

x = -0.246 · y = -0.595 · z = 0.765

Equatorial (J2000)

RA 247.54964° · Dec 49.89579°

Galactic ℓ, b

77.118° · 42.855°

Ecliptic λ, β

224.524° · 69.814°

HTM-20 index

456543053