TOI-6054.02
TOI-6054.02 is a mini-Neptune orbiting TOI-6054 in the constellation Camelopardalis. It lies about 259 light-years from Earth and was discovered in 2024 using the transit method.
How Big Is TOI-6054.02?
TOI-6054.02 has a radius of 2.82 times that of Earth. Its mass is 9.3 times that of Earth, giving it a density of 2.25 g/cm³ — between that of rocky and gaseous planets.
Is TOI-6054.02 in the Habitable Zone?
TOI-6054.02 orbits inside the inner edge of the habitable zone of TOI-6054. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-6054: 1.347–3.153 AU (conservative: 1.706–2.990 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on TOI-6054.02
The equilibrium temperature of TOI-6054.02 is about 1,143 K (870 °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 285 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-6054.02 — one full orbit around TOI-6054 — lasts 12.6 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.108 AU — closer to its star than Mercury is to the Sun. Its orbit is highly elliptical (eccentricity 0.33), swinging dramatically closer to and farther from its star.
How Was TOI-6054.02 Discovered?
TOI-6054.02 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-6054.02?
TOI-6054.02 is 259.0 light-years (79.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1767. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 4,558,400 years to make the journey.
The Host Star: TOI-6054
TOI-6054
- Surface temperature
- 6,047 K (Sun: 5,772 K)
- Mass
- 1.11 M☉
- Radius
- 1.66 R☉
- Luminosity
- 3.3300 L☉
- Age
- 6.0 billion years (Sun: 4.6)
The TOI-6054 Planetary System
TOI-6054.02 is one of 2 known planets in the TOI-6054 system. Its siblings:
- TOI-6054.01 (Super Earth)
TOI-6054.02 — Complete Data
| Radius | 2.820 Earth radii (0.252 Jupiter radii) |
|---|---|
| Mass | 9.30 Earth masses (0.029 Jupiter masses) |
| Density | 2.25 g/cm³ (Earth: 5.51) |
| Orbital period | 12.56 days |
| Orbital distance | 0.108 AU |
| Eccentricity | 0.332 |
| Equilibrium temperature | 1,143 K (870 °C) |
| Stellar irradiation | 285.00× Earth |
| Distance from Earth | 259.0 light-years (79.4 parsecs) |
| Constellation | Camelopardalis |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2025-09-17. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-6054.02
Is TOI-6054.02 habitable?
No — TOI-6054.02 orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-6054.02?
TOI-6054.02 is about 259 light-years from Earth in the constellation Camelopardalis. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 4,558,400 years to get there.
How big is TOI-6054.02 compared to Earth?
TOI-6054.02 has 2.82 times the radius of Earth and about 9.3 times its mass.
How long is a year on TOI-6054.02?
One orbit around TOI-6054 takes 12.6 Earth days — short enough that 29 of its years would fit into one Earth year.
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