Confirmed Exoplanet Discovered 2021

TOI-3362 b

A gas giant orbiting the f-type yellow-white TOI-3362, located approximately 1,197.0 light-years from Earth.

Key parameters at a glance

  • A radius of 12.80 Earth radii
  • A mass of 1,598.36 Earth masses
  • Surface gravity around 9.75 g
  • An orbital period of 18.095 days
  • Semi-major axis 0.1530 AU
  • Equilibrium temperature 688 K (415 °C)
  • Distance from Earth 1,196.95 light-years
  • Earth Similarity Index 0.255
  • Travel time at Voyager 1 speed 21,108,214 years

TOI-3362 b Planet Profile

Physical Specs

Radius
12.80 R⊕
Radius (Jupiter)
1.142 R♃
Mass
1,598.36 M⊕
Mass (Jupiter)
5.029 M♃
Density
4.19 g/cm³
Surface Gravity
9.75 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.255
HZ Position Inner
Controversial No

Discovery

Year 2021
Method Transit
Facility Transiting Exoplanet Survey Satellite (TESS)
Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#1061of 1771

top 59.9%

This planet

12.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth TOI-3362 b Jupiter
Radius (R⊕)1.0012.8011.21
Mass (M⊕)1.001,598.36317.83
Density (g/cm³)5.514.191.33
Surface Gravity (g)1.009.752.53
Insolation (S⊕)1.0037.210.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 1,598.359 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 464300749

Gaia DR2

Gaia DR2 5351820556994135296

Gaia DR3

Gaia DR3 5351820556994135296

System

TOI-3362

Percentile among Gas Giant cohort

Radius 12.801 R⊕ · percentile 40 / cohort 1771
Mass 1,598.359 M⊕ · percentile 75 / cohort 1747
Orbital period 18.10 d · percentile 47 / cohort 1533
Distance 366.99 pc · percentile 67 / cohort 1759
ESI 0.255 · percentile 46 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
18.095 days
Semi-major axis
0.1530 AU
Eccentricity
0.815
Inclination
89.14 °

Year Length

A year here lasts approximately 18.10 Earth days (5.0% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.1530 AU.

Transit Fingerprint

Depth

0.410 %

Duration

2.627 h

Impact parameter b

0.270

Transit midpoint (BJD)

2,458,529.3250

Photometric dip

Transit produces a flux drop of 4,100 ppm lasting ≈ 2.63 h.

Extended Orbital Architecture

Impact parameter (b)

0.270

Transit mid-time (BJD)

2,458,529.3250

Long. of periastron (ω)

50.87°

Angular separation (arcsec)

0.41700

Eq. Temperature

688K

(415 °C)

Insolation (S⊕)

37.21

Earth = 1.00

Earth Similarity (ESI)

0.255

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

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

Dong et al. 2021

Instrument

TESS CCD Array

Publication

2021-10

Observation locale

Space

Host System: TOI-3362

Spectral Class

F-type yellow-white

Effective Temperature

6,532 K — hotter than the Sun (5,778 K)

Estimated Age

2.14 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.830 R☉

Stellar Mass

1.445 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.072 dex

Stellar density

0.331 g/cm³

Rotational v·sin i

20.00 km/s

Metallicity ratio

[M/H]

Distance
366.99 parsec
Light-years 1,196.95 ly
V-band magnitude
10.86 mag
Voyager-speed travel 21,108,214 yr

Multi-band Host Photometry — 11 bands

9.411.211.24B10.86V10.71Gaia10.38TESS9.94J9.72H9.69K9.65W19.68W29.64W39.43W4

Astrometric Data

Parallax

2.696 mas

Total Proper Motion

25.329 mas/yr

PM Right Ascension

-24.12 mas/yr

PM Declination

7.72 mas/yr

Galactic Cartesian (pc)

x = -0.500 · y = 0.223 · z = -0.837

Equatorial (J2000)

RA 155.98414° · Dec -56.84312°

Galactic ℓ, b

283.772° · 0.438°

Ecliptic λ, β

194.451° · -58.941°

HTM-20 index

-1887117596

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