TOI-2384 b
TOI-2384 b is a hot Jupiter orbiting TOI-2384 in the constellation Horologium. It lies about 625 light-years from Earth and was discovered in 2024 using the transit method.
How Big Is TOI-2384 b?
TOI-2384 b has a radius of 11.49 times that of Earth, or 1.02 times the radius of Jupiter. Its mass is 625 times that of Earth, giving it a density of 2.26 g/cm³ — between that of rocky and gaseous planets.
Is TOI-2384 b in the Habitable Zone?
TOI-2384 b orbits inside the inner edge of the habitable zone of TOI-2384. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-2384: 0.231–0.587 AU (conservative: 0.293–0.556 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-2384 b
The equilibrium temperature of TOI-2384 b is about 890 K (617 °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 104 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-2384 b — one full orbit around TOI-2384 — lasts 2.14 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.028 AU — closer to its star than Mercury is to the Sun.
How Was TOI-2384 b Discovered?
TOI-2384 b was discovered in 2024 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-2384 b?
TOI-2384 b is 624.6 light-years (191.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1402. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 10,992,960 years to make the journey.
The Host Star: TOI-2384
TOI-2384
- Surface temperature
- 3,943 K (Sun: 5,772 K)
- Mass
- 0.64 M☉
- Radius
- 0.61 R☉
- Age
- 9.4 billion years (Sun: 4.6)
Planetary System
TOI-2384 b is the only planet known to orbit TOI-2384 so far.
TOI-2384 b — Complete Data
| Radius | 11.489 Earth radii (1.025 Jupiter radii) |
|---|---|
| Mass | 624.85 Earth masses (1.966 Jupiter masses) |
| Density | 2.26 g/cm³ (Earth: 5.51) |
| Orbital period | 2.14 days |
| Orbital distance | 0.028 AU |
| Equilibrium temperature | 890 K (617 °C) |
| Stellar irradiation | 104.30× Earth |
| Distance from Earth | 624.6 light-years (191.5 parsecs) |
| Constellation | Horologium |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2024-09-17. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2384 b
Is TOI-2384 b habitable?
No — TOI-2384 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-2384 b?
TOI-2384 b is about 625 light-years from Earth in the constellation Horologium. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 10,992,960 years to get there.
How big is TOI-2384 b compared to Earth?
TOI-2384 b has 11.49 times the radius of Earth and about 625 times its mass.
How long is a year on TOI-2384 b?
One orbit around TOI-2384 takes 2.1 Earth days — short enough that 171 of its years would fit into one Earth year.
Explore TOI-2384 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.
