Key parameters at a glance

A radius of 1.00 Earth radii
A mass of 0.97 Earth masses
Surface gravity around 0.97 g
An orbital period of 2.289 days
Semi-major axis 0.0205 AU
Equilibrium temperature 424 K (151 °C)
Distance from Earth 73.55 light-years
Earth Similarity Index 0.740
Travel time at Voyager 1 speed 1,297,022 years
Almost certainly tidally locked to its host star given the close orbit

1 sibling around TOI-2267 A

TOI-2267 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
TOI-2267 b this	Rocky Terrestrial	1.00	0.97	2.289	424	2025
TOI-2267 c	Rocky Terrestrial	1.14	1.55	3.495	374	2025

TOI-2267 b Planet Profile

Physical Specs

Radius

1.00 R⊕

Radius (Jupiter)

0.089 R♃

Mass

0.97 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.34 g/cm³

Surface Gravity

0.97 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.740

HZ Position Inner

Controversial No

Discovery

Year 2025

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#335of 570

top 58.6%

This planet

1.00R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1464 c 1.00 R⊕ Kepler-1417 b 1.00 R⊕ Kepler-392 b 1.00 R⊕

Metric	Earth	TOI-2267 b	Jupiter
Radius (R⊕)	1.00	1.00	11.21
Mass (M⊕)	1.00	0.97	317.83
Density (g/cm³)	5.51	5.34	1.33
Surface Gravity (g)	1.00	0.97	2.53
Insolation (S⊕)	1.00	8.40	0.037

Star Catalogue Identifiers

TIC

TIC 459837008

Gaia DR2

Gaia DR2 571488279686816256

Gaia DR3

Gaia DR3 571488283984760960

System

TOI-2267

Percentile among Rocky Terrestrial cohort

Radius 1.000 R⊕ · percentile 40 / cohort 570

Mass 0.972 M⊕ · percentile 36 / cohort 570

Orbital period 2.29 d · percentile 25 / cohort 567

Distance 22.55 pc · percentile 11 / cohort 566

ESI 0.740 · percentile 85 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

2.289 days

Semi-major axis

0.0205 AU

Eccentricity

—

Inclination

90.35 °

Year Length

A year here lasts approximately 2.29 Earth days (0.6% of a terrestrial year) at a mean orbital distance of 0.0205 AU.

Transit Fingerprint

Depth

0.223 %

Duration

0.815 h

Impact parameter b

-0.130

Rp / R★

0.044100

Transit midpoint (BJD)

2,459,525.4033

Photometric dip

Transit produces a flux drop of 2,230 ppm lasting ≈ 0.82 h.

Extended Orbital Architecture

Planet / star radius ratio

0.044100

Impact parameter (b)

-0.130

Transit mid-time (BJD)

2,459,525.4033

Angular separation (arcsec)

0.90900

Eq. Temperature

424K

(151 °C)

Insolation (S⊕)

8.40

Earth = 1.00

Earth Similarity (ESI)

0.740

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Zuniga Fernandez et al. 2025

Instrument

TESS CCD Array

Publication

2025-10

Observation locale

Space

Discovery cohort

Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

TOI-1266 d · Super-Earth TOI-2267 c · Rocky Terrestrial TOI-5799 c · Super-Earth TOI-5728 b · Super-Earth TOI-5716 b · Rocky Terrestrial TOI-7166 b · Sub-Neptune TOI-2093 c · Sub-Neptune TOI-2267 d · Super-Earth TOI-5489 c · Super-Earth TOI-1743 b · Super-Earth TOI-4364 b · Sub-Neptune HD 35843 c · Sub-Neptune

Host System: TOI-2267 A

Spectral Class

M-type red dwarf

Effective Temperature

3,030 K — cooler than the Sun (5,778 K)

Estimated Age

1.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.208 R☉

Stellar Mass

0.171 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.990 dex

Stellar density

34.300 g/cm³

Systemic radial velocity

-19.00 km/s

Rotational v·sin i

17.60 km/s

Rotation period

0.70 days

Metallicity ratio

[Fe/H]

Distance

22.55 parsec

Light-years 73.55 ly

V-band magnitude

15.56 mag

Voyager-speed travel 1,297,022 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Total Proper Motion

291.499 mas/yr

PM Right Ascension

192.45 mas/yr

PM Declination

-218.94 mas/yr

Galactic Cartesian (pc)

x = 0.037 · y = 0.081 · z = 0.996

Equatorial (J2000)

RA 65.06150° · Dec 84.90082°

Galactic ℓ, b

127.339° · 23.935°

Ecliptic λ, β

85.439° · 61.859°

HTM-20 index

1900834722