Key parameters at a glance
- A radius of 13.65 Earth radii
- A mass of 327.36 Earth masses
- Surface gravity around 1.76 g
- An orbital period of 3.707 days
- Semi-major axis 0.0476 AU
- Equilibrium temperature 1,292 K (1019 °C)
- Distance from Earth 723.00 light-years
- Earth Similarity Index 0.102
- Travel time at Voyager 1 speed 12,750,101 years
TOI-3135 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#605of 1771
top 34.1%
This planet
13.65R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-3135 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.65 | 11.21 |
| Mass (M⊕) | 1.00 | 327.36 | 317.83 |
| Density (g/cm³) | 5.51 | 0.70 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.76 | 2.53 |
| Insolation (S⊕) | 1.00 | 464.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 327.363 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 448098793
Gaia DR2
Gaia DR2 5847114914267582848
Gaia DR3
Gaia DR3 5847114914267582848
System
TOI-3135
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.71 Earth days (1.0% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0476 AU.
Transit Fingerprint
Depth
1.616 %
Duration
2.230 h
Impact parameter b
0.780
Transit midpoint (BJD)
2,459,595.1644
Photometric dip
Transit produces a flux drop of 16,160 ppm lasting ≈ 2.23 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
10.380
Impact parameter (b)
0.780
RV semi-amplitude (K)
130.000 m/s
Transit mid-time (BJD)
2,459,595.1644
Angular separation (arcsec)
0.21500
Eq. Temperature
1,292K
(1019 °C)
Insolation (S⊕)
464.00
Earth = 1.00
Earth Similarity (ESI)
0.102
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-3135
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,890 K — hotter than the Sun (5,778 K)
Estimated Age
1.80 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.985 R☉
Stellar Mass
1.044 M☉
Metallicity [Fe/H]
0.07
Extended Stellar Properties
Surface gravity (log g)
4.469 dex
Stellar density
1.537 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.482 mas
Total Proper Motion
26.777 mas/yr
PM Right Ascension
-20.89 mas/yr
PM Declination
-16.75 mas/yr
Galactic Cartesian (pc)
x = -0.306 · y = -0.162 · z = -0.938
Equatorial (J2000)
RA 207.85923° · Dec -69.77256°
Galactic ℓ, b
308.110° · -7.506°
Ecliptic λ, β
239.619° · -52.810°
HTM-20 index
783783762
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