Key parameters at a glance
- A radius of 2.37 Earth radii
- A mass of 6.20 Earth masses
- Surface gravity around 1.11 g
- An orbital period of 4.988 days
- Semi-major axis 0.0502 AU
- Equilibrium temperature 698 K (425 °C)
- Distance from Earth 310.71 light-years
- Earth Similarity Index 0.371
- Travel time at Voyager 1 speed 5,479,409 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around TOI-1782
TOI-1782.01 shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| TOI-1782.02 | Super-Earth | 1.84 | 4.04 | 1.829 | 975 | 2024 |
| TOI-1782.01 this | Sub-Neptune | 2.37 | 6.20 | 4.988 | 698 | 2024 |
TOI-1782.01 Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1390of 1978
top 70.2%
This planet
2.37R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | TOI-1782.01 | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.37 | 11.21 |
| Mass (M⊕) | 1.00 | 6.20 | 317.83 |
| Density (g/cm³) | 5.51 | 2.57 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.11 | 2.53 |
| Insolation (S⊕) | 1.00 | 56.25 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 160045097
Gaia DR2
Gaia DR2 1711970906169443584
Gaia DR3
Gaia DR3 1711970906169443584
System
TOI-1782
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.99 Earth days (1.4% of a terrestrial year) at a mean orbital distance of 0.0502 AU.
Transit Fingerprint
Depth
0.119 %
Duration
2.328 h
Rp / R★
0.032100
Transit midpoint (BJD)
2,459,635.7331
Photometric dip
Transit produces a flux drop of 1,192 ppm lasting ≈ 2.33 h.
Eq. Temperature
698K
(425 °C)
Insolation (S⊕)
56.25
Earth = 1.00
Earth Similarity (ESI)
0.371
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.
Discovery Paper
Primary reference
Crossfield et al. 2024Instrument
TESS CCD Array
Publication
2024-11
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-1782
Spectral Class
K-type orange
Effective Temperature
4,336 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.669 R☉
Stellar Mass
0.680 M☉
Metallicity [Fe/H]
—
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
10.468 mas
Total Proper Motion
88.753 mas/yr
PM Right Ascension
-79.46 mas/yr
PM Declination
39.55 mas/yr
Galactic Cartesian (pc)
x = -0.225 · y = -0.147 · z = 0.963
Equatorial (J2000)
RA 213.07877° · Dec 74.41179°
Galactic ℓ, b
115.800° · 41.578°
Ecliptic λ, β
132.167° · 70.403°
HTM-20 index
-254701053
Similar Worlds
Kepler-1814 b
Sub-Neptune · K-type orange
Radius 2.37 R⊕ · 2,369.0 ly
TOI-2133 b
Sub-Neptune · K-type orange
Radius 2.37 R⊕ · 245.3 ly
K2-233 d
Sub-Neptune · K-type orange
Radius 2.36 R⊕ · 220.2 ly
TOI-2443 b
Sub-Neptune · K-type orange
Radius 2.36 R⊕ · 78.0 ly
Kepler-1214 b
Sub-Neptune · K-type orange
Radius 2.36 R⊕ · 2,378.4 ly
Kepler-482 b
Sub-Neptune · K-type orange
Radius 2.36 R⊕ · 1,021.1 ly