Key parameters at a glance
- A radius of 12.25 Earth radii
- A mass of 235.19 Earth masses
- Surface gravity around 1.57 g
- An orbital period of 4.661 days
- Semi-major axis 0.0590 AU
- Equilibrium temperature 1,426 K (1153 °C)
- Distance from Earth 1,418.52 light-years
- Earth Similarity Index 0.094
- Travel time at Voyager 1 speed 25,015,558 years
TOI-2382 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1395of 1771
top 78.7%
This planet
12.25R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2382 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.25 | 11.21 |
| Mass (M⊕) | 1.00 | 235.19 | 317.83 |
| Density (g/cm³) | 5.51 | 0.68 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.57 | 2.53 |
| Insolation (S⊕) | 1.00 | 689.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 235.193 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 2760219
Gaia DR2
Gaia DR2 2418732758551062272
Gaia DR3
Gaia DR3 2418732758551062272
System
TOI-2382
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.66 Earth days (1.3% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0590 AU.
Transit Fingerprint
Depth
0.628 %
Duration
2.270 h
Impact parameter b
0.918
Transit midpoint (BJD)
2,459,215.4585
Photometric dip
Transit produces a flux drop of 6,280 ppm lasting ≈ 2.27 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
8.950
Impact parameter (b)
0.918
RV semi-amplitude (K)
76.000 m/s
Transit mid-time (BJD)
2,459,215.4585
Angular separation (arcsec)
0.13600
Eq. Temperature
1,426K
(1153 °C)
Insolation (S⊕)
689.00
Earth = 1.00
Earth Similarity (ESI)
0.094
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. 2025Instrument
TESS CCD Array
Publication
2025-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2382
Spectral Class
F-type yellow-white
Effective Temperature
6,033 K — hotter than the Sun (5,778 K)
Estimated Age
3.10 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.417 R☉
Stellar Mass
1.260 M☉
Metallicity [Fe/H]
0.25
Extended Stellar Properties
Surface gravity (log g)
4.235 dex
Stellar density
0.624 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.273 mas
Total Proper Motion
13.494 mas/yr
PM Right Ascension
12.37 mas/yr
PM Declination
-5.39 mas/yr
Galactic Cartesian (pc)
x = 0.959 · y = -0.061 · z = -0.278
Equatorial (J2000)
RA 356.37519° · Dec -16.11412°
Galactic ℓ, b
65.339° · -71.162°
Ecliptic λ, β
350.166° · -13.326°
HTM-20 index
-844538821
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