Key parameters at a glance
- A radius of 10.84 Earth radii
- A mass of 206.59 Earth masses
- Surface gravity around 1.76 g
- An orbital period of 5.175 days
- Semi-major axis 0.0565 AU
- Equilibrium temperature 1,000 K (727 °C)
- Distance from Earth 687.91 light-years
- Earth Similarity Index 0.151
- Travel time at Voyager 1 speed 12,131,326 years
TOI-2368 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1683of 1771
top 95.0%
This planet
10.84R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2368 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.84 | 11.21 |
| Mass (M⊕) | 1.00 | 206.59 | 317.83 |
| Density (g/cm³) | 5.51 | 0.88 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.76 | 2.53 |
| Insolation (S⊕) | 1.00 | 162.73 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 206.588 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 401125028
Gaia DR2
Gaia DR2 5325498111172934784
Gaia DR3
Gaia DR3 5325498111172934784
System
TOI-2368
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.18 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0565 AU.
Transit Fingerprint
Depth
1.283 %
Duration
2.025 h
Impact parameter b
0.824
Rp / R★
0.117420
Transit midpoint (BJD)
2,459,752.5955
Photometric dip
Transit produces a flux drop of 12,830 ppm lasting ≈ 2.03 h.
Extended Orbital Architecture
Planet / star radius ratio
0.117420
Semi-major axis / stellar radius
14.370
Impact parameter (b)
0.824
RV semi-amplitude (K)
81.000 m/s
Transit mid-time (BJD)
2,459,752.5955
Long. of periastron (ω)
121.00°
Angular separation (arcsec)
0.26800
Eq. Temperature
1,000K
(727 °C)
Insolation (S⊕)
162.73
Earth = 1.00
Earth Similarity (ESI)
0.151
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
Schulte et al. 2024Instrument
TESS CCD Array
Publication
2024-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2368
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,360 K — cooler than the Sun (5,778 K)
Estimated Age
4.20 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.846 R☉
Stellar Mass
0.897 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
4.538 dex
Stellar density
2.100 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.713 mas
Total Proper Motion
20.483 mas/yr
PM Right Ascension
-5.18 mas/yr
PM Declination
-19.82 mas/yr
Galactic Cartesian (pc)
x = -0.468 · y = 0.469 · z = -0.749
Equatorial (J2000)
RA 134.95762° · Dec -48.48849°
Galactic ℓ, b
268.760° · -1.606°
Ecliptic λ, β
164.206° · -60.878°
HTM-20 index
-830248436
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