Key parameters at a glance
- A radius of 12.40 Earth radii
- A mass of 3,591.46 Earth masses
- Surface gravity around 23.36 g
- An orbital period of 1,700.000 days
- Semi-major axis 2.5200 AU
- Equilibrium temperature 96 K (-177 °C)
- Distance from Earth 251.97 light-years
- Earth Similarity Index 0.180
- Travel time at Voyager 1 speed 4,443,546 years
1 sibling around TOI-969
TOI-969 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| TOI-969 b | Sub-Neptune | 2.77 | 9.10 | 1.824 | 941 | 2022 |
| TOI-969 c this | Gas Giant | 12.40 | 3,591.46 | 1,700.000 | 96 | 2022 |
TOI-969 c Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1298of 1771
top 73.2%
This planet
12.40R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-969 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.40 | 11.21 |
| Mass (M⊕) | 1.00 | 3,591.46 | 317.83 |
| Density (g/cm³) | 5.51 | 10.40 | 1.33 |
| Surface Gravity (g) | 1.00 | 23.36 | 2.53 |
| Insolation (S⊕) | 1.00 | 0.02 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 3,591.461 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 280437559
Gaia DR2
Gaia DR2 3087206553745290624
Gaia DR3
Gaia DR3 3087206553745290624
System
TOI-969
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 4.65 Earth years on a highly eccentric trajectory at a mean orbital distance of 2.5200 AU.
Extended Orbital Architecture
Semi-major axis / stellar radius
806.000
Transit mid-time (BJD)
2,460,640.0000
Long. of periastron (ω)
208.50°
Angular separation (arcsec)
32.60000
Eq. Temperature
96K
(-177 °C)
Insolation (S⊕)
0.02
Earth = 1.00
Earth Similarity (ESI)
0.180
0 = alien, 1 = Earth-identical
Beyond the outer HZ boundary (too cold) — any water would exist as deep ice.
Discovery Paper
Primary reference
Lillo Box et al. 2022Instrument
Multiple Instruments
Publication
2022-10
Observation locale
Ground
Discovery cohort
Planets confirmed in 2022 at Multiple Observatories (12 shown).
Host System: TOI-969
Spectral Class
K-type orange
Effective Temperature
4,435 K — cooler than the Sun (5,778 K)
Estimated Age
2.03 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.671 R☉
Stellar Mass
0.734 M☉
Metallicity [Fe/H]
0.18
Extended Stellar Properties
Surface gravity (log g)
4.550 dex
Stellar density
1.664 g/cm³
Systemic radial velocity
-5.79 km/s
Activity index (log R'HK)
-4.381
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
12.916 mas
Total Proper Motion
85.091 mas/yr
PM Right Ascension
-34.15 mas/yr
PM Declination
-77.94 mas/yr
Galactic Cartesian (pc)
x = -0.424 · y = 0.905 · z = 0.037
Equatorial (J2000)
RA 115.13669° · Dec 2.09859°
Galactic ℓ, b
216.700° · 11.877°
Ecliptic λ, β
116.680° · -19.042°
HTM-20 index
-891115527
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