TOI-892 b
TOI-892 b is a hot Jupiter orbiting the F star TOI-892 in the constellation Lepus. It lies about 1,111 light-years from Earth and was discovered in 2020 using the transit method.
How Big Is TOI-892 b?
TOI-892 b has a radius of 11.99 times that of Earth, or 1.07 times the radius of Jupiter. Its mass is 302 times that of Earth.
Is TOI-892 b in the Habitable Zone?
TOI-892 b orbits inside the inner edge of the habitable zone of TOI-892. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-892: 1.197–2.791 AU (conservative: 1.517–2.646 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-892 b
The equilibrium temperature of TOI-892 b is about 1,397 K (1,124 °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.
Orbit and Year Length
A year on TOI-892 b — one full orbit around TOI-892 — lasts 10.6 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.092 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.13).
How Was TOI-892 b Discovered?
TOI-892 b was discovered in 2020 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-892 b?
TOI-892 b is 1,110.7 light-years (340.5 parsecs) from Earth. Light arriving here tonight left the planet about 1,111 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 19,548,320 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. TOI-892 b scores 0.08, ranking #4,736 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: TOI-892
TOI-892
- Spectral type
- F
- Surface temperature
- 6,261 K (Sun: 5,772 K)
- Mass
- 1.28 M☉
- Radius
- 1.39 R☉
- Luminosity
- 2.7000 L☉
- Age
- 2.2 billion years (Sun: 4.6)
Planetary System
TOI-892 b is the only planet known to orbit TOI-892 so far.
TOI-892 b — Complete Data
| Radius | 11.994 Earth radii (1.070 Jupiter radii) |
|---|---|
| Mass | 301.94 Earth masses (0.950 Jupiter masses) |
| Orbital period | 10.63 days |
| Orbital distance | 0.092 AU |
| Eccentricity | 0.125 |
| Equilibrium temperature | 1,397 K (1,124 °C) |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 1,110.7 light-years (340.5 parsecs) |
| Constellation | Lepus |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2020 |
Data: NASA Exoplanet Archive, last updated 2020-12-10. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-892 b
Is TOI-892 b habitable?
No — TOI-892 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-892 b?
TOI-892 b is about 1,111 light-years from Earth in the constellation Lepus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 19,548,320 years to get there.
How big is TOI-892 b compared to Earth?
TOI-892 b has 11.99 times the radius of Earth and about 302 times its mass.
How long is a year on TOI-892 b?
One orbit around TOI-892 takes 10.6 Earth days — short enough that 34 of its years would fit into one Earth year.
Explore TOI-892 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.
