Key parameters at a glance

A radius of 2.68 Earth radii
A mass of 7.65 Earth masses
Surface gravity around 1.07 g
An orbital period of 22.342 days
Semi-major axis 0.1641 AU
Equilibrium temperature 598 K (325 °C)
Distance from Earth 373.09 light-years
Earth Similarity Index 0.410
Travel time at Voyager 1 speed 6,579,439 years

TOI-1744.01 Planet Profile

Physical Specs

Radius

2.68 R⊕

Radius (Jupiter)

0.239 R♃

Mass

7.65 M⊕

Mass (Jupiter)

0.024 M♃

Density

2.18 g/cm³

Surface Gravity

1.07 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.410

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

#896of 1978

top 45.2%

This planet

2.68R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-487 c 2.68 R⊕ Kepler-1184 b 2.68 R⊕ K2-58 b 2.68 R⊕

Metric	Earth	TOI-1744.01	Jupiter
Radius (R⊕)	1.00	2.68	11.21
Mass (M⊕)	1.00	7.65	317.83
Density (g/cm³)	5.51	2.18	1.33
Surface Gravity (g)	1.00	1.07	2.53
Insolation (S⊕)	1.00	63.31	0.037

Star Catalogue Identifiers

TIC

TIC 229455001

Gaia DR2

Gaia DR2 2239296103032464768

Gaia DR3

Gaia DR3 2239296103032464768

System

TOI-1744

Percentile among Sub-Neptune cohort

Radius 2.680 R⊕ · percentile 54 / cohort 1978

Mass 7.650 M⊕ · percentile 50 / cohort 1978

Orbital period 22.34 d · percentile 66 / cohort 1946

Distance 114.39 pc · percentile 23 / cohort 1975

ESI 0.410 · percentile 54 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

22.342 days

Semi-major axis

0.1641 AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 22.34 Earth days (6.1% of a terrestrial year) at a mean orbital distance of 0.1641 AU.

Transit Fingerprint

Depth

0.047 %

Duration

2.783 h

Rp / R★

0.021410

Transit midpoint (BJD)

2,459,908.3844

Photometric dip

Transit produces a flux drop of 472 ppm lasting ≈ 2.78 h.

Eq. Temperature

598K

(325 °C)

Insolation (S⊕)

63.31

Earth = 1.00

Earth Similarity (ESI)

0.410

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Crossfield et al. 2024

Instrument

TESS CCD Array

Publication

2024-11

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-1744

Spectral Class

F-type yellow-white

Effective Temperature

6,179 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.140 R☉

Stellar Mass

1.180 M☉

Metallicity [Fe/H]

—

Distance

114.39 parsec

Light-years 373.09 ly

V-band magnitude

9.54 mag

Voyager-speed travel 6,579,439 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

8.713 mas

Total Proper Motion

18.771 mas/yr

PM Right Ascension

-1.55 mas/yr

PM Declination

-18.71 mas/yr

Galactic Cartesian (pc)

x = 0.200 · y = -0.444 · z = 0.874

Equatorial (J2000)

RA 294.29107° · Dec 60.88130°

Galactic ℓ, b

92.792° · 18.211°

Ecliptic λ, β

343.460° · 77.947°

HTM-20 index

767612623