Key parameters at a glance
- A radius of 13.76 Earth radii
- A mass of 397.29 Earth masses
- Surface gravity around 2.10 g
- An orbital period of 3.652 days
- Semi-major axis 0.0515 AU
- Equilibrium temperature 1,693 K (1420 °C)
- Distance from Earth 1,949.68 light-years
- Earth Similarity Index 0.077
- Travel time at Voyager 1 speed 34,382,530 years
TOI-3464 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#548of 1771
top 30.9%
This planet
13.76R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-3464 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.76 | 11.21 |
| Mass (M⊕) | 1.00 | 397.29 | 317.83 |
| Density (g/cm³) | 5.51 | 0.83 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.10 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,370.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 397.286 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 290504044
Gaia DR2
Gaia DR2 5989042791436795648
Gaia DR3
Gaia DR3 5989042791436795648
System
TOI-3464
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.65 Earth days (1.0% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0515 AU.
Transit Fingerprint
Depth
0.654 %
Duration
2.508 h
Impact parameter b
0.877
Transit midpoint (BJD)
2,459,703.5652
Photometric dip
Transit produces a flux drop of 6,540 ppm lasting ≈ 2.51 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
7.090
Impact parameter (b)
0.877
RV semi-amplitude (K)
133.000 m/s
Transit mid-time (BJD)
2,459,703.5652
Angular separation (arcsec)
0.08620
Eq. Temperature
1,693K
(1420 °C)
Insolation (S⊕)
1,370.00
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. 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-3464
Spectral Class
F-type yellow-white
Effective Temperature
6,370 K — hotter than the Sun (5,778 K)
Estimated Age
2.10 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.560 R☉
Stellar Mass
1.363 M☉
Metallicity [Fe/H]
0.05
Extended Stellar Properties
Surface gravity (log g)
4.185 dex
Stellar density
0.504 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.645 mas
Total Proper Motion
12.385 mas/yr
PM Right Ascension
3.72 mas/yr
PM Declination
-11.81 mas/yr
Galactic Cartesian (pc)
x = -0.412 · y = -0.578 · z = -0.705
Equatorial (J2000)
RA 234.48304° · Dec -44.78998°
Galactic ℓ, b
331.413° · 8.679°
Ecliptic λ, β
243.026° · -24.620°
HTM-20 index
1837398002
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