TOI-2969 b
TOI-2969 b is a hot Jupiter orbiting the K3 V star TOI-2969 in the constellation Vela. It lies about 535 light-years from Earth and was discovered in 2025 using the transit method.
How Big Is TOI-2969 b?
TOI-2969 b has a radius of 12.33 times that of Earth, or 1.10 times the radius of Jupiter. Its mass is 369 times that of Earth, giving it a density of 1.10 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is TOI-2969 b in the Habitable Zone?
TOI-2969 b orbits inside the inner edge of the habitable zone of TOI-2969. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-2969: 0.404–0.988 AU (conservative: 0.512–0.936 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Temperature on TOI-2969 b
The equilibrium temperature of TOI-2969 b is about 1,186 K (913 °C) — hot enough to melt many metals. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C. It receives 382 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-2969 b — one full orbit around TOI-2969 — lasts just 43.8 hours, shorter than Mercury's 88-day year. It orbits at an average distance of 0.026 AU — closer to its star than Mercury is to the Sun.
How Was TOI-2969 b Discovered?
TOI-2969 b was discovered in 2025 using the transit method, with observations from Transiting Exoplanet Survey Satellite (TESS).
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is TOI-2969 b?
TOI-2969 b is 534.9 light-years (164.0 parsecs) from Earth. Light arriving here tonight left the planet around the year 1492. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 9,414,240 years to make the journey.
The Host Star: TOI-2969
TOI-2969
- Spectral type
- K3 V
- Surface temperature
- 4,738 K (Sun: 5,772 K)
- Mass
- 0.71 M☉
- Radius
- 0.70 R☉
- Luminosity
- 0.2600 L☉
Planetary System
TOI-2969 b is the only planet known to orbit TOI-2969 so far.
TOI-2969 b — Complete Data
| Radius | 12.330 Earth radii (1.100 Jupiter radii) |
|---|---|
| Mass | 368.68 Earth masses (1.160 Jupiter masses) |
| Density | 1.10 g/cm³ (Earth: 5.51) |
| Orbital period | 1.82 days |
| Orbital distance | 0.026 AU |
| Equilibrium temperature | 1,186 K (913 °C) |
| Stellar irradiation | 382.00× Earth |
| Distance from Earth | 534.9 light-years (164.0 parsecs) |
| Constellation | Vela |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2025 |
Data: NASA Exoplanet Archive, last updated 2025-06-11. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2969 b
Is TOI-2969 b habitable?
No — TOI-2969 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-2969 b?
TOI-2969 b is about 535 light-years from Earth in the constellation Vela. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 9,414,240 years to get there.
How big is TOI-2969 b compared to Earth?
TOI-2969 b has 12.33 times the radius of Earth and about 369 times its mass.
How long is a year on TOI-2969 b?
One orbit around TOI-2969 takes 1.8 Earth days — short enough that 200 of its years would fit into one Earth year.
Explore TOI-2969 b in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
