Key parameters at a glance
- A radius of 1.30 Earth radii
- A mass of 4.70 Earth masses
- Surface gravity around 2.78 g
- An orbital period of 3.022 days
- Semi-major axis 0.0386 AU
- Equilibrium temperature 1,110 K (837 °C)
- Distance from Earth 136.69 light-years
- Earth Similarity Index 0.237
- Travel time at Voyager 1 speed 2,410,511 years
- Almost certainly tidally locked to its host star given the close orbit
3 siblings around TOI-2076
TOI-2076 e shares its host star with 3 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| TOI-2076 e this | Super-Earth | 1.30 | 4.70 | 3.022 | 1,110 | 2025 |
| TOI-2076 b | Sub-Neptune | 2.59 | 6.70 | 10.355 | 736 | 2021 |
| TOI-2076 c | Sub-Neptune | 3.54 | 7.20 | 21.014 | 581 | 2021 |
| TOI-2076 d | Sub-Neptune | 3.27 | 7.30 | 35.128 | 490 | 2021 |
TOI-2076 e Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1088of 1176
top 92.4%
This planet
1.30R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | TOI-2076 e | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.30 | 11.21 |
| Mass (M⊕) | 1.00 | 4.70 | 317.83 |
| Density (g/cm³) | 5.51 | 11.50 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.78 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 4.700 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 27491137
Gaia DR2
Gaia DR2 1490845584382687232
Gaia DR3
Gaia DR3 1490845584382687232
System
TOI-2076
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.02 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0386 AU.
Transit Fingerprint
Duration
2.160 h
Impact parameter b
0.000
Rp / R★
0.015600
Transit midpoint (BJD)
2,458,740.2131
Extended Orbital Architecture
Planet / star radius ratio
0.015600
Semi-major axis / stellar radius
10.400
Impact parameter (b)
0.000
Transit mid-time (BJD)
2,458,740.2131
Angular separation (arcsec)
0.92200
Eq. Temperature
1,110K
(837 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.237
0 = alien, 1 = Earth-identical
Insufficient insolation data — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
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
Barber et al. 2025Instrument
TESS CCD Array
Publication
2025-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2076
Spectral Class
K-type orange
Effective Temperature
5,187 K — cooler than the Sun (5,778 K)
Estimated Age
0.21 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.758 R☉
Stellar Mass
0.849 M☉
Metallicity [Fe/H]
-0.09
Extended Stellar Properties
Surface gravity (log g)
4.608 dex
Stellar density
2.244 g/cm³
Rotational v·sin i
5.27 km/s
Rotation period
7.21 days
Activity index (log R'HK)
-4.373
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
23.832 mas
Total Proper Motion
118.433 mas/yr
PM Right Ascension
-118.23 mas/yr
PM Declination
-6.97 mas/yr
Galactic Cartesian (pc)
x = -0.610 · y = -0.467 · z = 0.640
Equatorial (J2000)
RA 217.39202° · Dec 39.79040°
Galactic ℓ, b
71.106° · 66.056°
Ecliptic λ, β
195.865° · 50.604°
HTM-20 index
655596192
Similar Worlds
Kepler-1379 b
Super-Earth · K-type orange
Radius 1.30 R⊕ · 3,168.0 ly
Kepler-1254 c
Super-Earth · K-type orange
Radius 1.30 R⊕ · 2,031.4 ly
K2-102 b
Super-Earth · K-type orange
Radius 1.30 R⊕ · 613.7 ly
Kepler-367 b
Super-Earth · K-type orange
Radius 1.30 R⊕ · 613.3 ly
K2-90 c
Super-Earth · K-type orange
Radius 1.30 R⊕ · 437.7 ly
Kepler-1254 d
Super-Earth · K-type orange
Radius 1.31 R⊕ · 2,031.4 ly