Key parameters at a glance
- A radius of 3.66 Earth radii
- A mass of 13.00 Earth masses
- Surface gravity around 0.97 g
- An orbital period of 1.927 days
- Equilibrium temperature 1,033 K (760 °C)
- Distance from Earth 368.71 light-years
- Earth Similarity Index 0.207
- Travel time at Voyager 1 speed 6,502,250 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-3082 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#106of 1978
top 5.3%
This planet
3.66R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | TOI-3082 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.66 | 11.21 |
| Mass (M⊕) | 1.00 | 13.00 | 317.83 |
| Density (g/cm³) | 5.51 | 1.45 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.97 | 2.53 |
| Insolation (S⊕) | 1.00 | 131.65 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 428699140
Gaia DR2
Gaia DR2 3509135344808097024
Gaia DR3
Gaia DR3 3509135344808097024
System
TOI-3082
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.93 Earth days (0.5% of a terrestrial year).
Transit Fingerprint
Depth
0.226 %
Duration
1.400 h
Impact parameter b
0.355
Rp / R★
0.048900
Transit midpoint (BJD)
2,459,309.1199
Photometric dip
Transit produces a flux drop of 2,260 ppm lasting ≈ 1.40 h.
Extended Orbital Architecture
Planet / star radius ratio
0.048900
Semi-major axis / stellar radius
8.519
Impact parameter (b)
0.355
Transit mid-time (BJD)
2,459,309.1199
Eq. Temperature
1,033K
(760 °C)
Insolation (S⊕)
131.65
Earth = 1.00
Earth Similarity (ESI)
0.207
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Mistry et al. 2023Instrument
TESS CCD Array
Publication
2023-01
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-3082
Spectral Class
K-type orange
Effective Temperature
4,263 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.685 R☉
Stellar Mass
0.664 M☉
Metallicity [Fe/H]
0.17
Extended Stellar Properties
Surface gravity (log g)
4.625 dex
Stellar density
2.917 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
8.817 mas
Total Proper Motion
127.091 mas/yr
PM Right Ascension
-123.90 mas/yr
PM Declination
-28.31 mas/yr
Galactic Cartesian (pc)
x = -0.908 · y = -0.259 · z = -0.329
Equatorial (J2000)
RA 195.90807° · Dec -19.21898°
Galactic ℓ, b
306.906° · 43.559°
Ecliptic λ, β
202.078° · -11.482°
HTM-20 index
1418770733
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