Key parameters at a glance
- A radius of 8.61 Earth radii
- A mass of 71.51 Earth masses
- Surface gravity around 0.96 g
- An orbital period of 4.020 days
- Semi-major axis 0.0487 AU
- Equilibrium temperature 1,091 K (818 °C)
- Distance from Earth 716.28 light-years
- Earth Similarity Index 0.137
- Travel time at Voyager 1 speed 12,631,672 years
TOI-2364 b Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#112of 574
top 19.3%
This planet
8.61R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | TOI-2364 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 8.61 | 11.21 |
| Mass (M⊕) | 1.00 | 71.51 | 317.83 |
| Density (g/cm³) | 5.51 | 0.61 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.96 | 2.53 |
| Insolation (S⊕) | 1.00 | 237.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 71.511 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 39414571
Gaia DR2
Gaia DR2 3022644120017418496
Gaia DR3
Gaia DR3 3022644120017418496
System
TOI-2364
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.02 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0487 AU.
Transit Fingerprint
Depth
0.794 %
Duration
2.775 h
Impact parameter b
0.210
Transit midpoint (BJD)
2,459,058.2140
Photometric dip
Transit produces a flux drop of 7,940 ppm lasting ≈ 2.78 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
11.840
Impact parameter (b)
0.210
RV semi-amplitude (K)
29.700 m/s
Transit mid-time (BJD)
2,459,058.2140
Angular separation (arcsec)
0.22200
Eq. Temperature
1,091K
(818 °C)
Insolation (S⊕)
237.00
Earth = 1.00
Earth Similarity (ESI)
0.137
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. 2023Instrument
TESS CCD Array
Publication
2023-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2364
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,306 K — cooler than the Sun (5,778 K)
Estimated Age
3.50 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.886 R☉
Stellar Mass
0.954 M☉
Metallicity [Fe/H]
0.34
Extended Stellar Properties
Surface gravity (log g)
4.524 dex
Stellar density
1.940 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.525 mas
Total Proper Motion
19.731 mas/yr
PM Right Ascension
12.31 mas/yr
PM Declination
-15.42 mas/yr
Galactic Cartesian (pc)
x = 0.015 · y = 0.996 · z = -0.087
Equatorial (J2000)
RA 89.13003° · Dec -5.01203°
Galactic ℓ, b
211.153° · -14.493°
Ecliptic λ, β
89.010° · -28.448°
HTM-20 index
1323591074
Similar Worlds
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