Key parameters at a glance

A radius of 12.78 Earth radii
A mass of 743.72 Earth masses
Surface gravity around 4.55 g
An orbital period of 4.097 days
Semi-major axis 0.0559 AU
Equilibrium temperature 1,772 K (1499 °C)
Distance from Earth 1,987.56 light-years
Earth Similarity Index 0.084
Travel time at Voyager 1 speed 35,050,540 years

TOI-5232 b Planet Profile

Physical Specs

Radius

12.78 R⊕

Radius (Jupiter)

1.140 R♃

Mass

743.72 M⊕

Mass (Jupiter)

2.340 M♃

Density

1.96 g/cm³

Surface Gravity

4.55 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.084

HZ Position Inner

Controversial No

Discovery

Year 2024

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#1120of 1771

top 63.2%

This planet

12.78R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 118203 b 12.78 R⊕ TOI-1820 b 12.78 R⊕ WASP-97 b 12.78 R⊕

Metric	Earth	TOI-5232 b	Jupiter
Radius (R⊕)	1.00	12.78	11.21
Mass (M⊕)	1.00	743.72	317.83
Density (g/cm³)	5.51	1.96	1.33
Surface Gravity (g)	1.00	4.55	2.53
Insolation (S⊕)	1.00	1,193.86	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	743.718 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 69356857

Gaia DR2

Gaia DR2 2048174967505679488

Gaia DR3

Gaia DR3 2048174967505679488

System

TOI-5232

Percentile among Gas Giant cohort

Radius 12.778 R⊕ · percentile 37 / cohort 1771

Mass 743.718 M⊕ · percentile 59 / cohort 1747

Orbital period 4.10 d · percentile 30 / cohort 1533

Distance 609.39 pc · percentile 79 / cohort 1759

ESI 0.084 · percentile 20 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4.097 days

Semi-major axis

0.0559 AU

Eccentricity

0.035

Inclination

88.30 °

Year Length

A year here lasts approximately 4.10 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0559 AU.

Transit Fingerprint

Depth

0.480 %

Duration

4.783 h

Impact parameter b

0.190

Rp / R★

0.065600

Transit midpoint (BJD)

2,459,857.9281

Photometric dip

Transit produces a flux drop of 4,800 ppm lasting ≈ 4.78 h.

Extended Orbital Architecture

Planet / star radius ratio

0.065600

Semi-major axis / stellar radius

6.740

Impact parameter (b)

0.190

RV semi-amplitude (K)

239.000 m/s

Transit mid-time (BJD)

2,459,857.9281

Long. of periastron (ω)

46.00°

Angular separation (arcsec)

0.09180

Eq. Temperature

1,772K

(1499 °C)

Insolation (S⊕)

1,193.86

Earth = 1.00

Earth Similarity (ESI)

0.084

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

Schulte et al. 2024

Instrument

TESS CCD Array

Publication

2024-07

Observation locale

Space

Discovery cohort

Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

Gliese 12 b · Rocky Terrestrial TOI-6002 b · Super-Earth TOI-5713 b · Super-Earth TOI-4336 A b · Sub-Neptune TOI-406.01 · Sub-Neptune TOI-1224 c · Sub-Neptune LHS 1678 d · Rocky Terrestrial TOI-2088 b · Sub-Neptune TOI-2120 b · Sub-Neptune TOI-1806.01 · Sub-Neptune TOI-4633 c · Sub-Neptune TOI-260 b · Super-Earth

Host System: TOI-5232

Spectral Class

F-type yellow-white

Effective Temperature

6,500 K — hotter than the Sun (5,778 K)

Estimated Age

2.37 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.785 R☉

Stellar Mass

1.389 M☉

Metallicity [Fe/H]

-0.10

Extended Stellar Properties

Surface gravity (log g)

4.077 dex

Stellar density

0.344 g/cm³

Rotational v·sin i

9.39 km/s

Metallicity ratio

[Fe/H]

Distance

609.39 parsec

Light-years 1,987.56 ly

V-band magnitude

12.25 mag

Voyager-speed travel 35,050,540 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.613 mas

Total Proper Motion

38.625 mas/yr

PM Right Ascension

-14.12 mas/yr

PM Declination

-35.95 mas/yr

Galactic Cartesian (pc)

x = 0.336 · y = -0.744 · z = 0.578

Equatorial (J2000)

RA 294.33742° · Dec 35.27649°

Galactic ℓ, b

69.249° · 6.821°

Ecliptic λ, β

306.614° · 55.664°

HTM-20 index

1029843973