Key parameters at a glance

A radius of 0.98 Earth radii
A mass of 0.91 Earth masses
Surface gravity around 0.94 g
An orbital period of 4.719 days
Semi-major axis 0.0319 AU
Equilibrium temperature 369 K (96 °C)
Distance from Earth 61.60 light-years
Earth Similarity Index 0.824
Travel time at Voyager 1 speed 1,086,352 years
Almost certainly tidally locked to its host star given the close orbit

TOI-6716 b Planet Profile

Physical Specs

Radius

0.98 R⊕

Radius (Jupiter)

0.088 R♃

Mass

0.91 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.29 g/cm³

Surface Gravity

0.94 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.824

HZ Position Inner

Controversial No

Discovery

Year 2026

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#353of 570

top 61.8%

This planet

0.98R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

LHS 1678 d 0.98 R⊕ Kepler-1328 b 0.98 R⊕ Kepler-220 d 0.98 R⊕

Metric	Earth	TOI-6716 b	Jupiter
Radius (R⊕)	1.00	0.98	11.21
Mass (M⊕)	1.00	0.91	317.83
Density (g/cm³)	5.51	5.29	1.33
Surface Gravity (g)	1.00	0.94	2.53
Insolation (S⊕)	1.00	4.40	0.037

Star Catalogue Identifiers

TIC

TIC 112115898

Gaia DR2

Gaia DR2 5605438925569442432

Gaia DR3

Gaia DR3 5605438925569442432

System

TOI-6716

Percentile among Rocky Terrestrial cohort

Radius 0.982 R⊕ · percentile 38 / cohort 570

Mass 0.911 M⊕ · percentile 34 / cohort 570

Orbital period 4.72 d · percentile 51 / cohort 567

Distance 18.89 pc · percentile 9 / cohort 566

ESI 0.824 · percentile 88 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

4.719 days

Semi-major axis

0.0319 AU

Eccentricity

0.880

Inclination

89.45 °

Year Length

A year here lasts approximately 4.72 Earth days (1.3% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.0319 AU.

Transit Fingerprint

Depth

0.173 %

Duration

1.237 h

Impact parameter b

0.270

Rp / R★

0.038980

Transit midpoint (BJD)

2,459,632.3448

Photometric dip

Transit produces a flux drop of 1,735 ppm lasting ≈ 1.24 h.

Extended Orbital Architecture

Planet / star radius ratio

0.038980

Semi-major axis / stellar radius

29.900

Impact parameter (b)

0.270

Transit mid-time (BJD)

2,459,632.3448

Angular separation (arcsec)

1.69000

Eq. Temperature

369K

(96 °C)

Insolation (S⊕)

4.40

Earth = 1.00

Earth Similarity (ESI)

0.824

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

Scott et al. 2026

Instrument

TESS CCD Array

Publication

2026-01

Observation locale

Space

Discovery cohort

Planets confirmed in 2026 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

TOI-2094 b · Super-Earth TOI-1080 b · Rocky Terrestrial TOI-1243 b · Sub-Neptune TOI-4529 b · Super-Earth TOI-7384 b · Sub-Neptune LHS 1903 d · Sub-Neptune LHS 1903 c · Sub-Neptune TOI-5734 b · Sub-Neptune TOI-5788 c · Sub-Neptune LHS 1903 b · Super-Earth TOI-5788 b · Super-Earth TOI-1232 c · Neptune-like

Host System: TOI-6716

Spectral Class

M-type red dwarf

Effective Temperature

3,110 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.231 R☉

Stellar Mass

0.223 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

5.060 dex

Stellar density

22.600 g/cm³

Metallicity ratio

[Fe/H]

Distance

18.89 parsec

Light-years 61.60 ly

V-band magnitude

14.80 mag

Voyager-speed travel 1,086,352 yr

Multi-band Host Photometry — 7 bands

Astrometric Data

Parallax

52.917 mas

Total Proper Motion

321.924 mas/yr

PM Right Ascension

-316.47 mas/yr

PM Declination

59.00 mas/yr

Galactic Cartesian (pc)

x = -0.318 · y = 0.800 · z = -0.508

Equatorial (J2000)

RA 111.65708° · Dec -30.55218°

Galactic ℓ, b

243.987° · -6.579°

Ecliptic λ, β

120.844° · -51.697°

HTM-20 index

-2123591224