TOI-2104 b
TOI-2104 b is a super-Earth orbiting TOI-2104 in the constellation Camelopardalis. It lies about 250 light-years from Earth and was discovered in 2026 using the transit method.
How Big Is TOI-2104 b?
TOI-2104 b has a radius of 1.53 times that of Earth.
Is TOI-2104 b in the Habitable Zone?
The position of TOI-2104 b relative to the habitable zone of TOI-2104 cannot be precisely determined from the available orbital data.
Habitable zone of TOI-2104: 0.403–0.980 AU (conservative: 0.511–0.929 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 ›
Orbit and Year Length
A year on TOI-2104 b — one full orbit around TOI-2104 — lasts 5.90 Earth days, shorter than Mercury's 88-day year.
How Was TOI-2104 b Discovered?
TOI-2104 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-2104 b?
TOI-2104 b is 250.3 light-years (76.7 parsecs) from Earth. Light arriving here tonight left the planet around the year 1776. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 4,405,280 years to make the journey.
The Host Star: TOI-2104
TOI-2104
- Surface temperature
- 4,856 K (Sun: 5,772 K)
- Radius
- 0.72 R☉
Planetary System
TOI-2104 b is the only planet known to orbit TOI-2104 so far.
TOI-2104 b — Complete Data
| Radius | 1.529 Earth radii (0.136 Jupiter radii) |
|---|---|
| Orbital period | 5.90 days |
| Distance from Earth | 250.3 light-years (76.7 parsecs) |
| Constellation | Camelopardalis |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2026 |
Data: NASA Exoplanet Archive, last updated 2026-04-23. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2104 b
Is TOI-2104 b habitable?
TOI-2104 b is not known to orbit within the habitable zone of TOI-2104, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is TOI-2104 b?
TOI-2104 b is about 250 light-years from Earth in the constellation Camelopardalis. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 4,405,280 years to get there.
How big is TOI-2104 b compared to Earth?
TOI-2104 b has 1.53 times the radius of Earth.
How long is a year on TOI-2104 b?
One orbit around TOI-2104 takes 5.9 Earth days — short enough that 62 of its years would fit into one Earth year.
Explore TOI-2104 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.
