Key parameters at a glance

A radius of 1.72 Earth radii
A mass of 3.60 Earth masses
Surface gravity around 1.22 g
An orbital period of 1.850 days
Semi-major axis 0.0300 AU
Equilibrium temperature 1,639 K (1366 °C)
Distance from Earth 182.89 light-years
Earth Similarity Index 0.163
Travel time at Voyager 1 speed 3,225,237 years

TOI-4443.01 Planet Profile

Physical Specs

Radius

1.72 R⊕

Radius (Jupiter)

0.153 R♃

Mass

3.60 M⊕

Mass (Jupiter)

0.011 M♃

Density

3.89 g/cm³

Surface Gravity

1.22 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.163

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

#380of 1176

top 32.2%

This planet

1.72R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-560 b 1.72 R⊕ Kepler-404 c 1.72 R⊕ HD 20329 b 1.72 R⊕

Metric	Earth	TOI-4443.01	Jupiter
Radius (R⊕)	1.00	1.72	11.21
Mass (M⊕)	1.00	3.60	317.83
Density (g/cm³)	5.51	3.89	1.33
Surface Gravity (g)	1.00	1.22	2.53
Insolation (S⊕)	1.00	1,194.21	0.037

Star Catalogue Identifiers

TIC

TIC 158241252

Gaia DR2

Gaia DR2 4529634417760144896

Gaia DR3

Gaia DR3 4529634417760144896

System

TOI-4443

Percentile among Super-Earth cohort

Radius 1.719 R⊕ · percentile 68 / cohort 1176

Mass 3.600 M⊕ · percentile 62 / cohort 1176

Orbital period 1.85 d · percentile 11 / cohort 1164

Distance 56.07 pc · percentile 12 / cohort 1171

ESI 0.163 · percentile 6 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

1.850 days

Semi-major axis

0.0300 AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 1.85 Earth days (0.5% of a terrestrial year) at a mean orbital distance of 0.0300 AU.

Transit Fingerprint

Depth

0.020 %

Duration

2.518 h

Rp / R★

0.015481

Transit midpoint (BJD)

2,459,415.1520

Photometric dip

Transit produces a flux drop of 195 ppm lasting ≈ 2.52 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015481

Semi-major axis / stellar radius

6.336

Transit mid-time (BJD)

2,459,415.1520

Angular separation (arcsec)

0.53400

Eq. Temperature

1,639K

(1366 °C)

Insolation (S⊕)

1,194.21

Earth = 1.00

Earth Similarity (ESI)

0.163

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Hord et al. 2024

Instrument

TESS CCD Array

Publication

2024-05

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-4443

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,834 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.017 R☉

Stellar Mass

1.049 M☉

Metallicity [Fe/H]

—

Distance

56.07 parsec

Light-years 182.89 ly

V-band magnitude

8.49 mag

Voyager-speed travel 3,225,237 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

17.805 mas

Total Proper Motion

57.013 mas/yr

PM Right Ascension

-50.67 mas/yr

PM Declination

26.13 mas/yr

Galactic Cartesian (pc)

x = 0.069 · y = -0.925 · z = 0.373

Equatorial (J2000)

RA 274.26866° · Dec 21.90955°

Galactic ℓ, b

49.269° · 17.067°

Ecliptic λ, β

275.627° · 45.265°

HTM-20 index

-643420796