TOI-2094 b
TOI-2094 b is a super-Earth orbiting the M3 V star TOI-2094 in the constellation Draco. It lies about 163 light-years from Earth and was discovered in 2026 using the transit method. It orbits within the habitable zone of its star — the region where liquid water could exist on a planet's surface.
How Big Is TOI-2094 b?
TOI-2094 b has a radius of 1.90 times that of Earth.
Is TOI-2094 b in the Habitable Zone?
TOI-2094 b orbits within the optimistic habitable zone of TOI-2094 — the broader region where liquid water might be possible under favorable atmospheric conditions.
Habitable zone of TOI-2094: 0.110–0.286 AU (conservative: 0.139–0.271 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-2094 b
The equilibrium temperature of TOI-2094 b is about 276 K (3 °C) — in a range broadly comparable to Earth, whose equilibrium temperature is 255 K. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C. It receives 0.98 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-2094 b — one full orbit around TOI-2094 — lasts 18.8 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.136 AU — closer to its star than Mercury is to the Sun.
How Was TOI-2094 b Discovered?
TOI-2094 b was discovered in 2026 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-2094 b?
TOI-2094 b is 163.2 light-years (50.0 parsecs) from Earth. Light arriving here tonight left the planet around the year 1863. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 2,872,320 years to make the journey.
The Host Star: TOI-2094
TOI-2094
- Spectral type
- M3 V
- Surface temperature
- 3,435 K (Sun: 5,772 K)
- Mass
- 0.43 M☉
- Radius
- 0.38 R☉
- Luminosity
- 0.0180 L☉
Planetary System
TOI-2094 b is the only planet known to orbit TOI-2094 so far.
TOI-2094 b — Complete Data
| Radius | 1.900 Earth radii (0.170 Jupiter radii) |
|---|---|
| Orbital period | 18.79 days |
| Orbital distance | 0.136 AU |
| Equilibrium temperature | 276 K (3 °C) |
| Stellar irradiation | 0.98× Earth |
| Distance from Earth | 163.2 light-years (50.0 parsecs) |
| Constellation | Draco |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2026 |
Data: NASA Exoplanet Archive, last updated 2026-03-12. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2094 b
Is TOI-2094 b habitable?
TOI-2094 b orbits within the habitable zone of TOI-2094, the region where liquid water could exist on a planet's surface. Whether it is actually habitable depends on its atmosphere and composition, which remain unknown.
How far away is TOI-2094 b?
TOI-2094 b is about 163 light-years from Earth in the constellation Draco. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 2,872,320 years to get there.
How big is TOI-2094 b compared to Earth?
TOI-2094 b has 1.90 times the radius of Earth.
How long is a year on TOI-2094 b?
One orbit around TOI-2094 takes 18.8 Earth days — short enough that 19 of its years would fit into one Earth year.
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