TOI-5335 b
TOI-5335 b is a Neptune-like planet orbiting TOI-5335 in the constellation Aries. It lies about 1,081 light-years from Earth and was discovered in 2026 using the transit method.
How Big Is TOI-5335 b?
TOI-5335 b has a radius of 4.02 times that of Earth.
Is TOI-5335 b in the Habitable Zone?
The position of TOI-5335 b relative to the habitable zone of TOI-5335 cannot be precisely determined from the available orbital data.
Habitable zone of TOI-5335: 0.639–1.517 AU (conservative: 0.810–1.438 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-5335 b — one full orbit around TOI-5335 — lasts 3.61 Earth days, shorter than Mercury's 88-day year.
How Was TOI-5335 b Discovered?
TOI-5335 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-5335 b?
TOI-5335 b is 1,080.5 light-years (331.3 parsecs) from Earth. Light arriving here tonight left the planet about 1,081 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 19,016,800 years to make the journey.
The Host Star: TOI-5335
TOI-5335
- Surface temperature
- 5,529 K (Sun: 5,772 K)
- Radius
- 0.92 R☉
Planetary System
TOI-5335 b is the only planet known to orbit TOI-5335 so far.
TOI-5335 b — Complete Data
| Radius | 4.024 Earth radii (0.359 Jupiter radii) |
|---|---|
| Orbital period | 3.61 days |
| Distance from Earth | 1,080.5 light-years (331.3 parsecs) |
| Constellation | Aries |
| 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-5335 b
Is TOI-5335 b habitable?
TOI-5335 b is not known to orbit within the habitable zone of TOI-5335, and as a Neptune-like planet it is an unlikely candidate for life as we know it.
How far away is TOI-5335 b?
TOI-5335 b is about 1,081 light-years from Earth in the constellation Aries. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 19,016,800 years to get there.
How big is TOI-5335 b compared to Earth?
TOI-5335 b has 4.02 times the radius of Earth.
How long is a year on TOI-5335 b?
One orbit around TOI-5335 takes 3.6 Earth days — short enough that 101 of its years would fit into one Earth year.
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