Key parameters at a glance
- A radius of 19.84 Earth radii
- A mass of 298.76 Earth masses
- Surface gravity around 0.76 g
- An orbital period of 2.123 days
- Semi-major axis 0.0332 AU
- Equilibrium temperature 1,763 K (1490 °C)
- Distance from Earth 1,099.35 light-years
- Earth Similarity Index 0.037
- Travel time at Voyager 1 speed 19,387,115 years
TOI-2193 A b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#32of 1771
top 1.8%
This planet
19.84R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2193 A b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 19.84 | 11.21 |
| Mass (M⊕) | 1.00 | 298.76 | 317.83 |
| Density (g/cm³) | 5.51 | 0.06 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.76 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,600.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 298.759 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 401604346
Gaia DR2
Gaia DR2 6373308503181838592
Gaia DR3
Gaia DR3 6373308503181838592
System
TOI-2193
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.12 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0332 AU.
Transit Fingerprint
Depth
0.019 %
Duration
1.647 h
Impact parameter b
0.990
Transit midpoint (BJD)
2,459,052.4212
Photometric dip
Transit produces a flux drop of 191 ppm lasting ≈ 1.65 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
5.710
Impact parameter (b)
0.990
RV semi-amplitude (K)
136.000 m/s
Transit mid-time (BJD)
2,459,052.4212
Angular separation (arcsec)
0.09850
Eq. Temperature
1,763K
(1490 °C)
Insolation (S⊕)
1,600.00
Earth = 1.00
Earth Similarity (ESI)
0.037
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. 2022Instrument
TESS CCD Array
Publication
2022-08
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2193 A
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,966 K — hotter than the Sun (5,778 K)
Estimated Age
5.50 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.248 R☉
Stellar Mass
1.082 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
4.278 dex
Stellar density
0.781 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.938 mas
Total Proper Motion
2.509 mas/yr
PM Right Ascension
-2.38 mas/yr
PM Declination
-0.81 mas/yr
Galactic Cartesian (pc)
x = 0.204 · y = -0.214 · z = -0.955
Equatorial (J2000)
RA 313.69123° · Dec -72.80464°
Galactic ℓ, b
320.935° · -34.782°
Ecliptic λ, β
289.514° · -52.321°
HTM-20 index
158983224
Similar Worlds
Kepler-12 b
Gas Giant · G-type yellow (Sun-like)
Radius 19.66 R⊕ · 2,874.7 ly
KELT-14 b
Gas Giant · G-type yellow (Sun-like)
Radius 19.54 R⊕ · 815.8 ly
HATS-23 b
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TOI-3807 b
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Radius 18.49 R⊕ · 1,375.5 ly
TOI-1855 b
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Kepler-447 b
Gas Giant · G-type yellow (Sun-like)
Radius 18.49 R⊕ · 874.2 ly