Key parameters at a glance
- A radius of 3.74 Earth radii
- A mass of 13.50 Earth masses
- Surface gravity around 0.96 g
- An orbital period of 6.839 days
- Equilibrium temperature 1,090 K (817 °C)
- Distance from Earth 271.21 light-years
- Earth Similarity Index 0.193
- Travel time at Voyager 1 speed 4,782,865 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-682.01 Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#74of 1978
top 3.7%
This planet
3.74R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | TOI-682.01 | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.74 | 11.21 |
| Mass (M⊕) | 1.00 | 13.50 | 317.83 |
| Density (g/cm³) | 5.51 | 1.42 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.96 | 2.53 |
| Insolation (S⊕) | 1.00 | 234.46 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 429304876
Gaia DR2
Gaia DR2 3538925100535948416
Gaia DR3
Gaia DR3 3538925100535948416
System
TOI-682
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.84 Earth days (1.9% of a terrestrial year).
Transit Fingerprint
Depth
0.121 %
Duration
4.176 h
Transit midpoint (BJD)
2,460,037.2599
Photometric dip
Transit produces a flux drop of 1,213 ppm lasting ≈ 4.18 h.
Eq. Temperature
1,090K
(817 °C)
Insolation (S⊕)
234.46
Earth = 1.00
Earth Similarity (ESI)
0.193
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
Giacalone et al. 2021Instrument
TESS CCD Array
Publication
2021-01
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-682
Spectral Class
K-type orange
Effective Temperature
5,085 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
1.080 R☉
Stellar Mass
0.850 M☉
Metallicity [Fe/H]
0.27
Extended Stellar Properties
Surface gravity (log g)
3.920 dex
Stellar density
0.940 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
11.997 mas
Total Proper Motion
105.859 mas/yr
PM Right Ascension
-91.43 mas/yr
PM Declination
-53.36 mas/yr
Galactic Cartesian (pc)
x = -0.906 · y = 0.194 · z = -0.376
Equatorial (J2000)
RA 167.88543° · Dec -22.07278°
Galactic ℓ, b
274.328° · 35.190°
Ecliptic λ, β
178.166° · -24.970°
HTM-20 index
718468835
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