Key parameters at a glance
- A radius of 3.25 Earth radii
- A mass of 10.60 Earth masses
- Surface gravity around 1.00 g
- An orbital period of 12.836 days
- Semi-major axis 0.0970 AU
- Equilibrium temperature 535 K (262 °C)
- Distance from Earth 270.05 light-years
- Earth Similarity Index 0.421
- Travel time at Voyager 1 speed 4,762,354 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around TOI-2093
TOI-2093 b 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 this | Sub-Neptune | 3.25 | 10.60 | 12.836 | 535 | 2025 |
| TOI-2093 c | Sub-Neptune | 2.30 | 15.80 | 53.811 | 329 | 2025 |
TOI-2093 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#312of 1978
top 15.7%
This planet
3.25R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | TOI-2093 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.25 | 11.21 |
| Mass (M⊕) | 1.00 | 10.60 | 317.83 |
| Density (g/cm³) | 5.51 | 1.70 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.00 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 10.600 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 12.84 Earth days (3.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0970 AU.
Extended Orbital Architecture
RV semi-amplitude (K)
3.520 m/s
Transit mid-time (BJD)
2,459,320.5300
Long. of periastron (ω)
90.00°
Angular separation (arcsec)
1.17000
Eq. Temperature
535K
(262 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.421
0 = alien, 1 = Earth-identical
Insufficient insolation data — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Sanz Forcada et al. 2025Instrument
CARMENES
Publication
2025-09
Observation locale
Ground
Discovery cohort
Planets confirmed in 2025 at Calar Alto Observatory (8 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
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Kepler-278 c
Sub-Neptune · K-type orange
Radius 3.27 R⊕ · 1,445.0 ly