Key parameters at a glance

A radius of 1.41 Earth radii
A mass of 2.57 Earth masses
Surface gravity around 1.29 g
An orbital period of 1.767 days
Semi-major axis 0.0226 AU
Equilibrium temperature 764 K (491 °C)
Distance from Earth 100.44 light-years
Earth Similarity Index 0.404
Travel time at Voyager 1 speed 1,771,237 years
Almost certainly tidally locked to its host star given the close orbit

TOI-1693 b Planet Profile

Physical Specs

Radius

1.41 R⊕

Radius (Jupiter)

0.126 R♃

Mass

2.57 M⊕

Mass (Jupiter)

0.008 M♃

Density

5.04 g/cm³

Surface Gravity

1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.404

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

#902of 1176

top 76.6%

This planet

1.41R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-369 c 1.41 R⊕ Kepler-334 d 1.41 R⊕ Kepler-141 c 1.41 R⊕

Metric	Earth	TOI-1693 b	Jupiter
Radius (R⊕)	1.00	1.41	11.21
Mass (M⊕)	1.00	2.57	317.83
Density (g/cm³)	5.51	5.04	1.33
Surface Gravity (g)	1.00	1.29	2.53
Insolation (S⊕)	1.00	57.02	0.037

Star Catalogue Identifiers

TIC

TIC 353475866

Gaia DR2

Gaia DR2 3451908921382409472

Gaia DR3

Gaia DR3 3451908921382409472

System

TOI-1693

Percentile among Super-Earth cohort

Radius 1.410 R⊕ · percentile 22 / cohort 1176

Mass 2.570 M⊕ · percentile 21 / cohort 1176

Orbital period 1.77 d · percentile 11 / cohort 1164

Distance 30.79 pc · percentile 7 / cohort 1171

ESI 0.404 · percentile 61 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

1.767 days

Semi-major axis

0.0226 AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 1.77 Earth days (0.5% of a terrestrial year) at a mean orbital distance of 0.0226 AU.

Transit Fingerprint

Depth

0.083 %

Duration

1.420 h

Impact parameter b

0.300

Transit midpoint (BJD)

2,458,817.6827

Photometric dip

Transit produces a flux drop of 831 ppm lasting ≈ 1.42 h.

Eq. Temperature

764K

(491 °C)

Insolation (S⊕)

57.02

Earth = 1.00

Earth Similarity (ESI)

0.404

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

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-1693

Spectral Class

M-type red dwarf

Effective Temperature

3,499 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.460 R☉

Stellar Mass

0.490 M☉

Metallicity [Fe/H]

—

Distance

30.79 parsec

Light-years 100.44 ly

V-band magnitude

12.96 mag

Voyager-speed travel 1,771,237 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

32.444 mas

Total Proper Motion

28.874 mas/yr

PM Right Ascension

-22.76 mas/yr

PM Declination

-17.76 mas/yr

Galactic Cartesian (pc)

x = -0.004 · y = 0.821 · z = 0.570

Equatorial (J2000)

RA 90.30835° · Dec 34.77309°

Galactic ℓ, b

176.632° · 5.808°

Ecliptic λ, β

90.254° · 11.334°

HTM-20 index

197810843