Key parameters at a glance
- A radius of 19.73 Earth radii
- A mass of 193.88 Earth masses
- Surface gravity around 0.50 g
- An orbital period of 6.203 days
- Equilibrium temperature 1,226 K (953 °C)
- Distance from Earth 1,283.24 light-years
- Earth Similarity Index 0.073
- Travel time at Voyager 1 speed 22,629,900 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-2669 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#33of 1771
top 1.8%
This planet
19.73R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2669 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 19.73 | 11.21 |
| Mass (M⊕) | 1.00 | 193.88 | 317.83 |
| Density (g/cm³) | 5.51 | 0.14 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.50 | 2.53 |
| Insolation (S⊕) | 1.00 | 375.55 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 193.875 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 348835438
Gaia DR2
Gaia DR2 5735664051960550144
Gaia DR3
Gaia DR3 5735664051960550144
System
TOI-2669
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.20 Earth days (1.7% of a terrestrial year) on a nearly circular orbit.
Transit Fingerprint
Depth
0.081 %
Duration
5.715 h
Impact parameter b
0.858
Transit midpoint (BJD)
2,458,521.5980
Photometric dip
Transit produces a flux drop of 810 ppm lasting ≈ 5.72 h.
Extended Orbital Architecture
Impact parameter (b)
0.858
RV semi-amplitude (K)
59.600 m/s
Transit mid-time (BJD)
2,458,521.5980
Long. of periastron (ω)
-1.22°
Eq. Temperature
1,226K
(953 °C)
Insolation (S⊕)
375.55
Earth = 1.00
Earth Similarity (ESI)
0.073
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — 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
Grunblatt et al. 2022Instrument
TESS CCD Array
Publication
2022-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2669
Spectral Class
K-type orange
Effective Temperature
4,800 K — cooler than the Sun (5,778 K)
Estimated Age
5.90 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
4.100 R☉
Stellar Mass
1.190 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
3.290 dex
Stellar density
0.025 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.513 mas
Total Proper Motion
21.738 mas/yr
PM Right Ascension
18.68 mas/yr
PM Declination
-11.12 mas/yr
Galactic Cartesian (pc)
x = -0.685 · y = 0.691 · z = -0.230
Equatorial (J2000)
RA 134.72264° · Dec -13.31258°
Galactic ℓ, b
240.917° · 20.622°
Ecliptic λ, β
141.594° · -29.097°
HTM-20 index
251081603
Similar Worlds
GSC 06214-00210 b
Gas Giant · K-type orange
Radius 20.18 R⊕ · 353.9 ly
1RXS J160929.1-210524 b
Gas Giant · K-type orange
Radius 18.65 R⊕ · 453.8 ly
WISPIT 2 b
Gas Giant · K-type orange
Radius 17.93 R⊕ · 440.0 ly
WISPIT 2 c
Gas Giant · K-type orange
Radius 17.93 R⊕ · 440.0 ly
WASP-177 b
Gas Giant · K-type orange
Radius 17.71 R⊕ · 576.7 ly
PDS 70 b
Gas Giant · K-type orange
Radius 21.97 R⊕ · 368.8 ly