Confirmed Exoplanet Discovered 2024

TOI-5713 b

A super-earth orbiting the m-type red dwarf TOI-5713, located approximately 133.3 light-years from Earth.

Key parameters at a glance

  • A radius of 1.77 Earth radii
  • A mass of 3.78 Earth masses
  • Surface gravity around 1.21 g
  • An orbital period of 10.442 days
  • Semi-major axis 0.0601 AU
  • Equilibrium temperature 347 K (74 °C)
  • Distance from Earth 133.29 light-years
  • Earth Similarity Index 0.759
  • Travel time at Voyager 1 speed 2,350,561 years
  • Almost certainly tidally locked to its host star given the close orbit

TOI-5713 b Planet Profile

Physical Specs

Radius
1.77 R⊕
Radius (Jupiter)
0.158 R♃
Mass
3.78 M⊕
Mass (Jupiter)
0.012 M♃
Density
3.75 g/cm³
Surface Gravity
1.21 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.759
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

#293of 1176

top 24.8%

This planet

1.77R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth TOI-5713 b Jupiter
Radius (R⊕)1.001.7711.21
Mass (M⊕)1.003.78317.83
Density (g/cm³)5.513.751.33
Surface Gravity (g)1.001.212.53
Insolation (S⊕)1.002.260.037

Star Catalogue Identifiers

TIC

TIC 219041246

Gaia DR2

Gaia DR2 1560676770454324224

Gaia DR3

Gaia DR3 1560676770454324224

System

TOI-5713

Percentile among Super-Earth cohort

Radius 1.770 R⊕ · percentile 73 / cohort 1176
Mass 3.780 M⊕ · percentile 67 / cohort 1176
Orbital period 10.44 d · percentile 66 / cohort 1164
Distance 40.87 pc · percentile 8 / cohort 1171
ESI 0.759 · percentile 87 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
10.442 days
Semi-major axis
0.0601 AU
Eccentricity
0.240
Inclination
89.37 °

Year Length

A year here lasts approximately 10.44 Earth days (2.9% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0601 AU.

Transit Fingerprint

Depth

0.292 %

Duration

1.750 h

Impact parameter b

0.440

Rp / R★

0.054100

Transit midpoint (BJD)

2,458,745.6776

Photometric dip

Transit produces a flux drop of 2,920 ppm lasting ≈ 1.75 h.

Extended Orbital Architecture

Planet / star radius ratio

0.054100

Semi-major axis / stellar radius

43.200

Impact parameter (b)

0.440

Transit mid-time (BJD)

2,458,745.6776

Long. of periastron (ω)

-139.00°

Angular separation (arcsec)

1.47000

Eq. Temperature

347K

(74 °C)

Insolation (S⊕)

2.26

Earth = 1.00

Earth Similarity (ESI)

0.759

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Ghachoui et al. 2024

Instrument

TESS CCD Array

Publication

2024-10

Observation locale

Space

Host System: TOI-5713

Spectral Class

M-type red dwarf

Effective Temperature

3,225 K — cooler than the Sun (5,778 K)

Estimated Age

4.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.299 R☉

Stellar Mass

0.265 M☉

Metallicity [Fe/H]

-0.03

Extended Stellar Properties

Surface gravity (log g)

4.910 dex

Stellar density

13.960 g/cm³

Systemic radial velocity

-14.69 km/s

Metallicity ratio

[Fe/H]

Distance
40.87 parsec
Light-years 133.29 ly
V-band magnitude
15.36 mag
Voyager-speed travel 2,350,561 yr

Multi-band Host Photometry — 11 bands

9.017.017.04B15.36V14.01Gaia12.70TESS11.07J10.47H10.22K10.04W19.88W29.72W39.02W4

Astrometric Data

Parallax

24.441 mas

Total Proper Motion

110.209 mas/yr

PM Right Ascension

108.49 mas/yr

PM Declination

-19.40 mas/yr

Galactic Cartesian (pc)

x = -0.534 · y = -0.289 · z = 0.794

Equatorial (J2000)

RA 208.45873° · Dec 52.60276°

Galactic ℓ, b

102.581° · 61.990°

Ecliptic λ, β

174.595° · 57.566°

HTM-20 index

-1307641515

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