Key parameters at a glance
- A radius of 12.33 Earth radii
- A mass of 368.68 Earth masses
- Surface gravity around 2.43 g
- An orbital period of 1.824 days
- Semi-major axis 0.0261 AU
- Equilibrium temperature 1,186 K (913 °C)
- Distance from Earth 534.88 light-years
- Earth Similarity Index 0.125
- Travel time at Voyager 1 speed 9,432,658 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-2969 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1345of 1771
top 75.9%
This planet
12.33R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2969 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.33 | 11.21 |
| Mass (M⊕) | 1.00 | 368.68 | 317.83 |
| Density (g/cm³) | 5.51 | 1.10 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.43 | 2.53 |
| Insolation (S⊕) | 1.00 | 382.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 368.681 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 36452991
Gaia DR2
Gaia DR2 5407977460540294784
Gaia DR3
Gaia DR3 5407977460540294784
System
TOI-2969
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.82 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0261 AU.
Transit Fingerprint
Depth
2.292 %
Duration
1.846 h
Impact parameter b
0.713
Rp / R★
0.161300
Transit midpoint (BJD)
2,459,303.3002
Photometric dip
Transit produces a flux drop of 22,920 ppm lasting ≈ 1.85 h.
Extended Orbital Architecture
Planet / star radius ratio
0.161300
Impact parameter (b)
0.713
RV semi-amplitude (K)
243.000 m/s
Transit mid-time (BJD)
2,459,303.3002
Angular separation (arcsec)
0.15900
Eq. Temperature
1,186K
(913 °C)
Insolation (S⊕)
382.00
Earth = 1.00
Earth Similarity (ESI)
0.125
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
Frensch et al. 2025Instrument
TESS CCD Array
Publication
2025-06
Observation locale
Space
Discovery cohort
Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2969
Spectral Class
K-type orange
Effective Temperature
4,738 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.700 R☉
Stellar Mass
0.710 M☉
Metallicity [Fe/H]
0.08
Extended Stellar Properties
Surface gravity (log g)
4.560 dex
Stellar density
2.721 g/cm³
Systemic radial velocity
52.04 km/s
Rotational v·sin i
2.00 km/s
Rotation period
26.80 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
6.069 mas
Total Proper Motion
12.007 mas/yr
PM Right Ascension
11.99 mas/yr
PM Declination
-0.64 mas/yr
Galactic Cartesian (pc)
x = -0.586 · y = 0.338 · z = -0.737
Equatorial (J2000)
RA 150.06262° · Dec -47.44524°
Galactic ℓ, b
275.411° · 6.071°
Ecliptic λ, β
178.370° · -54.106°
HTM-20 index
1013633824
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