Key parameters at a glance
- A radius of 18.49 Earth radii
- A mass of 330.54 Earth masses
- Surface gravity around 0.97 g
- An orbital period of 2.899 days
- Semi-major axis 0.0421 AU
- Equilibrium temperature 1,646 K (1373 °C)
- Distance from Earth 1,375.55 light-years
- Earth Similarity Index 0.061
- Travel time at Voyager 1 speed 24,257,763 years
TOI-3807 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#54of 1771
top 3.0%
This planet
18.49R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-3807 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 18.49 | 11.21 |
| Mass (M⊕) | 1.00 | 330.54 | 317.83 |
| Density (g/cm³) | 5.51 | 0.29 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.97 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,230.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 330.542 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 289661991
Gaia DR2
Gaia DR2 1117620107545810944
Gaia DR3
Gaia DR3 1117620107545810944
System
TOI-3807
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.90 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0421 AU.
Transit Fingerprint
Depth
1.360 %
Duration
1.780 h
Impact parameter b
1.000
Transit midpoint (BJD)
2,459,218.1345
Photometric dip
Transit produces a flux drop of 13,600 ppm lasting ≈ 1.78 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
6.140
Impact parameter (b)
1.000
RV semi-amplitude (K)
130.000 m/s
Transit mid-time (BJD)
2,459,218.1345
Angular separation (arcsec)
0.09980
Eq. Temperature
1,646K
(1373 °C)
Insolation (S⊕)
1,230.00
Earth = 1.00
Earth Similarity (ESI)
0.061
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. 2023Instrument
TESS CCD Array
Publication
2023-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-3807
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,772 K — cooler than the Sun (5,778 K)
Estimated Age
5.60 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.468 R☉
Stellar Mass
1.181 M☉
Metallicity [Fe/H]
0.28
Extended Stellar Properties
Surface gravity (log g)
4.174 dex
Stellar density
0.521 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.342 mas
Total Proper Motion
1.461 mas/yr
PM Right Ascension
-0.55 mas/yr
PM Declination
-1.35 mas/yr
Galactic Cartesian (pc)
x = -0.270 · y = 0.234 · z = 0.934
Equatorial (J2000)
RA 139.11256° · Dec 69.07413°
Galactic ℓ, b
144.331° · 37.871°
Ecliptic λ, β
114.734° · 49.816°
HTM-20 index
-1479082544
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