Key parameters at a glance
- A radius of 11.03 Earth radii
- A mass of 565.73 Earth masses
- Surface gravity around 4.65 g
- An orbital period of 3.821 days
- Semi-major axis 0.0481 AU
- Equilibrium temperature 1,170 K (897 °C)
- Distance from Earth 739.17 light-years
- Earth Similarity Index 0.144
- Travel time at Voyager 1 speed 13,035,215 years
TOI-3593 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1661of 1771
top 93.7%
This planet
11.03R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-3593 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.03 | 11.21 |
| Mass (M⊕) | 1.00 | 565.73 | 317.83 |
| Density (g/cm³) | 5.51 | 2.31 | 1.33 |
| Surface Gravity (g) | 1.00 | 4.65 | 2.53 |
| Insolation (S⊕) | 1.00 | 308.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 565.735 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 162289289
Gaia DR2
Gaia DR2 1900293230549817856
Gaia DR3
Gaia DR3 1900293230549817856
System
TOI-3593
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.82 Earth days (1.0% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0481 AU.
Transit Fingerprint
Depth
1.210 %
Duration
2.486 h
Impact parameter b
0.340
Transit midpoint (BJD)
2,460,055.7270
Photometric dip
Transit produces a flux drop of 12,100 ppm lasting ≈ 2.49 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
11.270
Impact parameter (b)
0.340
RV semi-amplitude (K)
230.000 m/s
Transit mid-time (BJD)
2,460,055.7270
Long. of periastron (ω)
62.00°
Angular separation (arcsec)
0.21200
Eq. Temperature
1,170K
(897 °C)
Insolation (S⊕)
308.00
Earth = 1.00
Earth Similarity (ESI)
0.144
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-3593
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,550 K — cooler than the Sun (5,778 K)
Estimated Age
1.80 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.918 R☉
Stellar Mass
1.015 M☉
Metallicity [Fe/H]
0.38
Extended Stellar Properties
Surface gravity (log g)
4.519 dex
Stellar density
1.850 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.384 mas
Total Proper Motion
21.201 mas/yr
PM Right Ascension
0.24 mas/yr
PM Declination
-21.20 mas/yr
Galactic Cartesian (pc)
x = 0.727 · y = -0.395 · z = 0.562
Equatorial (J2000)
RA 331.50636° · Dec 34.21166°
Galactic ℓ, b
88.040° · -17.223°
Ecliptic λ, β
349.222° · 42.282°
HTM-20 index
1520599912
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