TOI-6041 b
TOI-6041 b is a Neptune-like planet orbiting the G7 star TOI-6041 in the constellation Perseus. It lies about 236 light-years from Earth and was discovered in 2025 using the transit method.
How Big Is TOI-6041 b?
TOI-6041 b has a radius of 4.55 times that of Earth. Its mass is 28.9 times that of Earth, giving it a density of 1.79 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is TOI-6041 b in the Habitable Zone?
TOI-6041 b orbits inside the inner edge of the habitable zone of TOI-6041. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-6041: 0.599–1.425 AU (conservative: 0.759–1.351 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on TOI-6041 b
The equilibrium temperature of TOI-6041 b is about 606 K (332 °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 22.40 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-6041 b — one full orbit around TOI-6041 — lasts 26.0 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.165 AU — closer to its star than Mercury is to the Sun.
How Was TOI-6041 b Discovered?
TOI-6041 b was discovered in 2025 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-6041 b?
TOI-6041 b is 236.4 light-years (72.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1790. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 4,160,640 years to make the journey.
The Host Star: TOI-6041
TOI-6041
- Spectral type
- G7
- Surface temperature
- 5,445 K (Sun: 5,772 K)
- Mass
- 0.89 M☉
- Radius
- 0.88 R☉
- Luminosity
- 0.6130 L☉
- Age
- 7.9 billion years (Sun: 4.6)
The TOI-6041 Planetary System
TOI-6041 b is one of 2 known planets in the TOI-6041 system. Its siblings:
- TOI-6041 c (Cold Gas Giant)
TOI-6041 b — Complete Data
| Radius | 4.550 Earth radii (0.406 Jupiter radii) |
|---|---|
| Mass | 28.90 Earth masses (0.091 Jupiter masses) |
| Density | 1.79 g/cm³ (Earth: 5.51) |
| Orbital period | 26.05 days |
| Orbital distance | 0.165 AU |
| Equilibrium temperature | 606 K (332 °C) |
| Stellar irradiation | 22.40× Earth |
| Distance from Earth | 236.4 light-years (72.5 parsecs) |
| Constellation | Perseus |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2025 |
Data: NASA Exoplanet Archive, last updated 2025-12-18. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-6041 b
Is TOI-6041 b habitable?
No — TOI-6041 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-6041 b?
TOI-6041 b is about 236 light-years from Earth in the constellation Perseus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 4,160,640 years to get there.
How big is TOI-6041 b compared to Earth?
TOI-6041 b has 4.55 times the radius of Earth and about 28.9 times its mass.
How long is a year on TOI-6041 b?
One orbit around TOI-6041 takes 26.0 Earth days — short enough that 14 of its years would fit into one Earth year.
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