Key parameters at a glance
- A radius of 2.30 Earth radii
- A mass of 15.80 Earth masses
- Surface gravity around 2.99 g
- An orbital period of 53.811 days
- Semi-major axis 0.2570 AU
- Equilibrium temperature 329 K (56 °C)
- Distance from Earth 270.05 light-years
- Earth Similarity Index 0.737
- Travel time at Voyager 1 speed 4,762,354 years
1 sibling around TOI-2093
TOI-2093 c 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-2093 b | Sub-Neptune | 3.25 | 10.60 | 12.836 | 535 | 2025 |
| TOI-2093 c this | Sub-Neptune | 2.30 | 15.80 | 53.811 | 329 | 2025 |
TOI-2093 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1499of 1978
top 75.7%
This planet
2.30R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | TOI-2093 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.30 | 11.21 |
| Mass (M⊕) | 1.00 | 15.80 | 317.83 |
| Density (g/cm³) | 5.51 | 7.00 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.99 | 2.53 |
| Insolation (S⊕) | 1.00 | 3.06 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 15.800 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 15.800 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 402898317
Gaia DR2
Gaia DR2 2251459209896210816
Gaia DR3
Gaia DR3 2251459209896210816
System
TOI-2093
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 53.81 Earth days (14.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2570 AU.
Transit Fingerprint
Depth
0.084 %
Duration
4.680 h
Impact parameter b
0.560
Rp / R★
0.029000
Transit midpoint (BJD)
2,458,751.6122
Photometric dip
Transit produces a flux drop of 841 ppm lasting ≈ 4.68 h.
Extended Orbital Architecture
Planet / star radius ratio
0.029000
Impact parameter (b)
0.560
RV semi-amplitude (K)
3.260 m/s
Transit mid-time (BJD)
2,458,751.6122
Long. of periastron (ω)
0.00°
Angular separation (arcsec)
3.10000
Eq. Temperature
329K
(56 °C)
Insolation (S⊕)
3.06
Earth = 1.00
Earth Similarity (ESI)
0.737
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure.
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
Sanz Forcada et al. 2025Instrument
TESS CCD Array
Publication
2025-09
Observation locale
Space
Discovery cohort
Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2093
Spectral Class
K-type orange
Effective Temperature
4,426 K — cooler than the Sun (5,778 K)
Estimated Age
6.60 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.729 R☉
Stellar Mass
0.745 M☉
Metallicity [Fe/H]
-0.08
Extended Stellar Properties
Surface gravity (log g)
4.870 dex
Stellar density
2.850 g/cm³
Systemic radial velocity
14.67 km/s
Rotational v·sin i
2.00 km/s
Rotation period
43.80 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
12.049 mas
Total Proper Motion
66.336 mas/yr
PM Right Ascension
-36.89 mas/yr
PM Declination
55.13 mas/yr
Galactic Cartesian (pc)
x = 0.177 · y = -0.276 · z = 0.945
Equatorial (J2000)
RA 302.73752° · Dec 70.86965°
Galactic ℓ, b
103.865° · 19.368°
Ecliptic λ, β
34.735° · 77.545°
HTM-20 index
-1006418023
Similar Worlds
K2-59 c
Sub-Neptune · K-type orange
Radius 2.30 R⊕ · 1,015.4 ly
Kepler-224 d
Sub-Neptune · K-type orange
Radius 2.30 R⊕ · 2,550.8 ly
Kepler-621 b
Sub-Neptune · K-type orange
Radius 2.30 R⊕ · 1,268.7 ly
Kepler-156 b
Sub-Neptune · K-type orange
Radius 2.30 R⊕ · 1,446.4 ly
TOI-178 e
Sub-Neptune · K-type orange
Radius 2.30 R⊕ · 204.5 ly
K2-57 b
Sub-Neptune · K-type orange
Radius 2.31 R⊕ · 861.7 ly