Key parameters at a glance
- A radius of 11.15 Earth radii
- A mass of 203.41 Earth masses
- Surface gravity around 1.64 g
- An orbital period of 8.002 days
- Semi-major axis 0.0854 AU
- Equilibrium temperature 1,259 K (986 °C)
- Distance from Earth 1,217.69 light-years
- Earth Similarity Index 0.114
- Travel time at Voyager 1 speed 21,473,911 years
TOI-2207 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1643of 1771
top 92.7%
This planet
11.15R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2207 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.15 | 11.21 |
| Mass (M⊕) | 1.00 | 203.41 | 317.83 |
| Density (g/cm³) | 5.51 | 0.80 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.64 | 2.53 |
| Insolation (S⊕) | 1.00 | 406.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 203.410 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 90850770
Gaia DR2
Gaia DR2 6675883485986480256
Gaia DR3
Gaia DR3 6675883485986480256
System
TOI-2207
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 8.00 Earth days (2.2% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0854 AU.
Transit Fingerprint
Depth
0.427 %
Duration
4.632 h
Impact parameter b
0.200
Transit midpoint (BJD)
2,459,283.8275
Photometric dip
Transit produces a flux drop of 4,273 ppm lasting ≈ 4.63 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
11.700
Impact parameter (b)
0.200
RV semi-amplitude (K)
55.800 m/s
Transit mid-time (BJD)
2,459,283.8275
Angular separation (arcsec)
0.22900
Eq. Temperature
1,259K
(986 °C)
Insolation (S⊕)
406.00
Earth = 1.00
Earth Similarity (ESI)
0.114
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. 2022Instrument
TESS CCD Array
Publication
2022-08
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2207
Spectral Class
F-type yellow-white
Effective Temperature
6,101 K — hotter than the Sun (5,778 K)
Estimated Age
3.30 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.564 R☉
Stellar Mass
1.296 M☉
Metallicity [Fe/H]
0.18
Extended Stellar Properties
Surface gravity (log g)
4.161 dex
Stellar density
0.476 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.651 mas
Total Proper Motion
30.290 mas/yr
PM Right Ascension
15.99 mas/yr
PM Declination
-25.72 mas/yr
Galactic Cartesian (pc)
x = 0.432 · y = -0.561 · z = -0.706
Equatorial (J2000)
RA 307.59669° · Dec -44.88762°
Galactic ℓ, b
355.480° · -35.849°
Ecliptic λ, β
298.507° · -25.099°
HTM-20 index
1705821164
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