Key parameters at a glance

A radius of 1.20 Earth radii
A mass of 2.00 Earth masses
Surface gravity around 1.39 g
An orbital period of 1.452 days
Semi-major axis 0.0212 AU
Equilibrium temperature 976 K (703 °C)
Distance from Earth 105.93 light-years
Earth Similarity Index 0.315
Travel time at Voyager 1 speed 1,868,045 years
Almost certainly tidally locked to its host star given the close orbit

TOI-1411 b Planet Profile

Physical Specs

Radius

1.20 R⊕

Radius (Jupiter)

0.107 R♃

Mass

2.00 M⊕

Mass (Jupiter)

0.006 M♃

Density

6.36 g/cm³

Surface Gravity

1.39 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.315

HZ Position Inner

Controversial No

Discovery

Year 2022

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#96of 570

top 16.7%

This planet

1.20R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-409 b 1.20 R⊕ Kepler-282 c 1.20 R⊕ Kepler-225 b 1.20 R⊕

Metric	Earth	TOI-1411 b	Jupiter
Radius (R⊕)	1.00	1.20	11.21
Mass (M⊕)	1.00	2.00	317.83
Density (g/cm³)	5.51	6.36	1.33
Surface Gravity (g)	1.00	1.39	2.53
Insolation (S⊕)	1.00	266.85	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2.000 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HIP

HIP 76042

TIC

TIC 116483514

Gaia DR2

Gaia DR2 1401760747118886016

Gaia DR3

Gaia DR3 1401760747118886016

System

TOI-1411

Percentile among Rocky Terrestrial cohort

Radius 1.199 R⊕ · percentile 83 / cohort 570

Mass 2.000 M⊕ · percentile 85 / cohort 570

Orbital period 1.45 d · percentile 16 / cohort 567

Distance 32.48 pc · percentile 14 / cohort 566

ESI 0.315 · percentile 43 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.452 days

Semi-major axis

0.0212 AU

Eccentricity

0.000

Inclination

— °

Year Length

A year here lasts approximately 1.45 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0212 AU.

Transit Fingerprint

Depth

0.039 %

Duration

1.509 h

Impact parameter b

0.255

Rp / R★

0.017901

Transit midpoint (BJD)

2,458,739.4740

Photometric dip

Transit produces a flux drop of 393 ppm lasting ≈ 1.51 h.

Extended Orbital Architecture

Planet / star radius ratio

0.017901

Impact parameter (b)

0.255

RV semi-amplitude (K)

1.550 m/s

Transit mid-time (BJD)

2,458,739.4740

Long. of periastron (ω)

90.00°

Angular separation (arcsec)

0.65300

Eq. Temperature

976K

(703 °C)

Insolation (S⊕)

266.85

Earth = 1.00

Earth Similarity (ESI)

0.315

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.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Giacalone et al. 2022

Instrument

TESS CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

TOI-1452 b · Super-Earth TOI-712 d · Sub-Neptune TOI-1468 c · Sub-Neptune TOI-2136 b · Sub-Neptune LTT 1445 A c · Rocky Terrestrial TOI-712 c · Sub-Neptune LP 890-9 b · Super-Earth TOI-2081 b · Sub-Neptune GJ 3929 b · Rocky Terrestrial HD 260655 c · Super-Earth HD 73583 c · Sub-Neptune TOI-1759 b · Sub-Neptune

Host System: TOI-1411

Spectral Class

K-type orange

Effective Temperature

4,115 K — cooler than the Sun (5,778 K)

Estimated Age

9.60 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.614 R☉

Stellar Mass

0.605 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.640 dex

Stellar density

3.633 g/cm³

Metallicity ratio

[Fe/H]

Distance

32.48 parsec

Light-years 105.93 ly

V-band magnitude

10.51 mag

Voyager-speed travel 1,868,045 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

30.761 mas

Total Proper Motion

336.233 mas/yr

PM Right Ascension

154.80 mas/yr

PM Declination

-298.48 mas/yr

Galactic Cartesian (pc)

x = -0.411 · y = -0.544 · z = 0.732

Equatorial (J2000)

RA 232.94605° · Dec 47.05555°

Galactic ℓ, b

76.259° · 52.909°

Ecliptic λ, β

206.830° · 62.609°

HTM-20 index

-1927090889