Key parameters at a glance
- A radius of 11.40 Earth radii
- A mass of 211.36 Earth masses
- Surface gravity around 1.63 g
- An orbital period of 2.593 days
- Semi-major axis 0.0271 AU
- Equilibrium temperature 604 K (331 °C)
- Distance from Earth 237.48 light-years
- Earth Similarity Index 0.243
- Travel time at Voyager 1 speed 4,187,915 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-3235 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1607of 1771
top 90.7%
This planet
11.40R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-3235 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.40 | 11.21 |
| Mass (M⊕) | 1.00 | 211.36 | 317.83 |
| Density (g/cm³) | 5.51 | 0.78 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.63 | 2.53 |
| Insolation (S⊕) | 1.00 | 13.89 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 211.356 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 243641947
Gaia DR2
Gaia DR2 6107144260251920000
Gaia DR3
Gaia DR3 6107144260251920000
System
TOI-3235
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.59 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0271 AU.
Transit Fingerprint
Depth
7.821 %
Duration
1.480 h
Impact parameter b
0.511
Rp / R★
0.282800
Transit midpoint (BJD)
2,459,690.0017
Photometric dip
Transit produces a flux drop of 78,210 ppm lasting ≈ 1.48 h.
Extended Orbital Architecture
Planet / star radius ratio
0.282800
Semi-major axis / stellar radius
15.750
Impact parameter (b)
0.511
RV semi-amplitude (K)
182.900 m/s
Transit mid-time (BJD)
2,459,690.0017
Angular separation (arcsec)
0.37200
Eq. Temperature
604K
(331 °C)
Insolation (S⊕)
13.89
Earth = 1.00
Earth Similarity (ESI)
0.243
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
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
Hobson et al. 2023Instrument
TESS CCD Array
Publication
2023-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-3235
Spectral Class
M-type red dwarf
Effective Temperature
3,389 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.370 R☉
Stellar Mass
0.394 M☉
Metallicity [Fe/H]
0.26
Extended Stellar Properties
Surface gravity (log g)
4.898 dex
Stellar density
10.990 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
13.707 mas
Total Proper Motion
182.008 mas/yr
PM Right Ascension
-170.38 mas/yr
PM Declination
-64.02 mas/yr
Galactic Cartesian (pc)
x = -0.616 · y = -0.320 · z = -0.720
Equatorial (J2000)
RA 207.47385° · Dec -46.06651°
Galactic ℓ, b
313.405° · 15.613°
Ecliptic λ, β
223.298° · -32.235°
HTM-20 index
1076161909
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