Confirmed Exoplanet Discovered 2022

TOI-2236 b

A gas giant orbiting the f-type yellow-white TOI-2236, located approximately 1,159.8 light-years from Earth.

Key parameters at a glance

  • A radius of 14.37 Earth radii
  • A mass of 502.17 Earth masses
  • Surface gravity around 2.43 g
  • An orbital period of 3.532 days
  • Semi-major axis 0.0501 AU
  • Equilibrium temperature 1,688 K (1415 °C)
  • Distance from Earth 1,159.78 light-years
  • Earth Similarity Index 0.077
  • Travel time at Voyager 1 speed 20,452,686 years

TOI-2236 b Planet Profile

Physical Specs

Radius
14.37 R⊕
Radius (Jupiter)
1.282 R♃
Mass
502.17 M⊕
Mass (Jupiter)
1.580 M♃
Density
0.93 g/cm³
Surface Gravity
2.43 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.077
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

#294of 1771

top 16.5%

This planet

14.37R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth TOI-2236 b Jupiter
Radius (R⊕)1.0014.3711.21
Mass (M⊕)1.00502.17317.83
Density (g/cm³)5.510.931.33
Surface Gravity (g)1.002.432.53
Insolation (S⊕)1.001,356.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 502.169 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 394722182

Gaia DR2

Gaia DR2 4613145315172329984

Gaia DR3

Gaia DR3 4613145315172329984

System

TOI-2236

Percentile among Gas Giant cohort

Radius 14.370 R⊕ · percentile 83 / cohort 1771
Mass 502.169 M⊕ · percentile 49 / cohort 1747
Orbital period 3.53 d · percentile 23 / cohort 1533
Distance 355.59 pc · percentile 66 / cohort 1759
ESI 0.077 · percentile 17 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
3.532 days
Semi-major axis
0.0501 AU
Eccentricity
0.000
Inclination
83.58 °

Year Length

A year here lasts approximately 3.53 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0501 AU.

Transit Fingerprint

Depth

0.701 %

Duration

3.048 h

Impact parameter b

0.766

Transit midpoint (BJD)

2,459,011.4570

Photometric dip

Transit produces a flux drop of 7,011 ppm lasting ≈ 3.05 h.

Extended Orbital Architecture

Semi-major axis / stellar radius

6.840

Impact parameter (b)

0.766

RV semi-amplitude (K)

172.000 m/s

Transit mid-time (BJD)

2,459,011.4570

Angular separation (arcsec)

0.14100

Eq. Temperature

1,688K

(1415 °C)

Insolation (S⊕)

1,356.00

Earth = 1.00

Earth Similarity (ESI)

0.077

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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

Yee et al. 2022

Instrument

TESS CCD Array

Publication

2022-08

Observation locale

Space

Host System: TOI-2236

Spectral Class

F-type yellow-white

Effective Temperature

6,248 K — hotter than the Sun (5,778 K)

Estimated Age

2.52 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.573 R☉

Stellar Mass

1.343 M☉

Metallicity [Fe/H]

0.12

Extended Stellar Properties

Surface gravity (log g)

4.172 dex

Stellar density

0.486 g/cm³

Metallicity ratio

[Fe/H]

Distance
355.59 parsec
Light-years 1,159.78 ly
V-band magnitude
11.60 mag
Voyager-speed travel 20,452,686 yr

Multi-band Host Photometry — 11 bands

9.012.212.15B11.60V11.29Gaia10.87TESS10.26J10.01H9.96K9.90W19.93W29.88W39.01W4

Astrometric Data

Parallax

2.783 mas

Total Proper Motion

8.580 mas/yr

PM Right Ascension

-3.72 mas/yr

PM Declination

-7.73 mas/yr

Galactic Cartesian (pc)

x = 0.049 · y = 0.018 · z = -0.999

Equatorial (J2000)

RA 20.16601° · Dec -86.97997°

Galactic ℓ, b

302.488° · -30.123°

Ecliptic λ, β

277.400° · -67.433°

HTM-20 index

-1757366420

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