Key parameters at a glance
- A radius of 12.14 Earth radii
- A mass of 766.60 Earth masses
- Surface gravity around 5.20 g
- An orbital period of 11.235 days
- Semi-major axis 0.1093 AU
- Equilibrium temperature 1,134 K (861 °C)
- Distance from Earth 1,297.95 light-years
- Earth Similarity Index 0.145
- Travel time at Voyager 1 speed 22,889,304 years
TOI-2485 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1446of 1771
top 81.6%
This planet
12.14R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2485 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.14 | 11.21 |
| Mass (M⊕) | 1.00 | 766.60 | 317.83 |
| Density (g/cm³) | 5.51 | 2.36 | 1.33 |
| Surface Gravity (g) | 1.00 | 5.20 | 2.53 |
| Insolation (S⊕) | 1.00 | 275.60 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 766.602 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 328934463
Gaia DR2
Gaia DR2 1443530261848942336
Gaia DR3
Gaia DR3 1443530266145475840
System
TOI-2485
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 11.23 Earth days (3.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1093 AU.
Transit Fingerprint
Depth
0.478 %
Duration
6.567 h
Impact parameter b
0.121
Rp / R★
0.064700
Transit midpoint (BJD)
2,458,939.7856
Photometric dip
Transit produces a flux drop of 4,780 ppm lasting ≈ 6.57 h.
Extended Orbital Architecture
Planet / star radius ratio
0.064700
Semi-major axis / stellar radius
13.690
Impact parameter (b)
0.121
RV semi-amplitude (K)
197.840 m/s
Transit mid-time (BJD)
2,458,939.7856
Long. of periastron (ω)
10.00°
Angular separation (arcsec)
0.27500
Eq. Temperature
1,134K
(861 °C)
Insolation (S⊕)
275.60
Earth = 1.00
Earth Similarity (ESI)
0.145
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
Carleo et al. 2024Instrument
TESS CCD Array
Publication
2024-10
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2485
Spectral Class
F-type yellow-white
Effective Temperature
6,016 K — hotter than the Sun (5,778 K)
Estimated Age
6.00 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.720 R☉
Stellar Mass
1.163 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
4.010 dex
Stellar density
0.385 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.485 mas
Total Proper Motion
7.255 mas/yr
PM Right Ascension
1.00 mas/yr
PM Declination
-7.19 mas/yr
Galactic Cartesian (pc)
x = -0.833 · y = -0.392 · z = 0.390
Equatorial (J2000)
RA 205.20432° · Dec 22.98397°
Galactic ℓ, b
15.298° · 78.081°
Ecliptic λ, β
193.781° · 30.944°
HTM-20 index
1049162358
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