Key parameters at a glance
- A radius of 18.64 Earth radii
- A mass of 444.96 Earth masses
- Surface gravity around 1.28 g
- An orbital period of 1.602 days
- Semi-major axis 0.0287 AU
- Equilibrium temperature 1,978 K (1705 °C)
- Distance from Earth 1,349.22 light-years
- Earth Similarity Index 0.051
- Travel time at Voyager 1 speed 23,793,481 years
TOI-2886 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#52of 1771
top 2.9%
This planet
18.64R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2886 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 18.64 | 11.21 |
| Mass (M⊕) | 1.00 | 444.96 | 317.83 |
| Density (g/cm³) | 5.51 | 0.38 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.28 | 2.53 |
| Insolation (S⊕) | 1.00 | 2,560.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 444.960 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 318796593
Gaia DR2
Gaia DR2 3046930579529070464
Gaia DR3
Gaia DR3 3046930579529070464
System
TOI-2886
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.60 Earth days (0.4% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0287 AU.
Transit Fingerprint
Depth
1.897 %
Duration
2.784 h
Impact parameter b
0.190
Transit midpoint (BJD)
2,459,311.0145
Photometric dip
Transit produces a flux drop of 18,970 ppm lasting ≈ 2.78 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
4.977
Impact parameter (b)
0.190
RV semi-amplitude (K)
212.000 m/s
Transit mid-time (BJD)
2,459,311.0145
Angular separation (arcsec)
0.06940
Eq. Temperature
1,978K
(1705 °C)
Insolation (S⊕)
2,560.00
Earth = 1.00
Earth Similarity (ESI)
0.051
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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
Yee et al. 2025Instrument
TESS CCD Array
Publication
2025-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2886
Spectral Class
F-type yellow-white
Effective Temperature
6,240 K — hotter than the Sun (5,778 K)
Estimated Age
1.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.241 R☉
Stellar Mass
1.229 M☉
Metallicity [Fe/H]
0.28
Extended Stellar Properties
Surface gravity (log g)
4.340 dex
Stellar density
0.908 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.389 mas
Total Proper Motion
9.669 mas/yr
PM Right Ascension
-8.36 mas/yr
PM Declination
-4.85 mas/yr
Galactic Cartesian (pc)
x = -0.336 · y = 0.924 · z = -0.183
Equatorial (J2000)
RA 110.00766° · Dec -10.56984°
Galactic ℓ, b
225.588° · 1.445°
Ecliptic λ, β
113.469° · -32.393°
HTM-20 index
-1226852860
Similar Worlds
HAT-P-69 b
Gas Giant · F-type yellow-white
Radius 18.79 R⊕ · 1,113.0 ly
HATS-64 b
Gas Giant · F-type yellow-white
Radius 18.82 R⊕ · 3,523.0 ly
CoRoT-35 b
Gas Giant · F-type yellow-white
Radius 18.83 R⊕ · 3,663.4 ly
K2-260 b
Gas Giant · F-type yellow-white
Radius 18.42 R⊕ · 2,165.1 ly
HATS-67 b
Gas Giant · F-type yellow-white
Radius 18.89 R⊕ · 3,131.5 ly
WASP-187 b
Gas Giant · F-type yellow-white
Radius 18.38 R⊕ · 1,211.4 ly