TOI-6034 b
TOI-6034 b is a hot Jupiter orbiting TOI-6034 in the constellation Cepheus. It lies about 385 light-years from Earth and was discovered in 2024 using the transit method.
How Big Is TOI-6034 b?
TOI-6034 b has a radius of 11.92 times that of Earth, or 1.06 times the radius of Jupiter. Its mass is 254 times that of Earth, giving it a density of 0.82 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is TOI-6034 b in the Habitable Zone?
TOI-6034 b orbits inside the inner edge of the habitable zone of TOI-6034. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-6034: 0.162–0.418 AU (conservative: 0.206–0.397 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on TOI-6034 b
The equilibrium temperature of TOI-6034 b is about 714 K (441 °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 43.00 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-6034 b — one full orbit around TOI-6034 — lasts 2.58 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.029 AU — closer to its star than Mercury is to the Sun. Its orbit is nearly circular (eccentricity 0.040).
How Was TOI-6034 b Discovered?
TOI-6034 b 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-6034 b?
TOI-6034 b is 384.8 light-years (118.0 parsecs) from Earth. Light arriving here tonight left the planet around the year 1642. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 6,772,480 years to make the journey.
The Host Star: TOI-6034
TOI-6034 b belongs to a system of 2 stars; it orbits TOI-6034.
TOI-6034
- Surface temperature
- 3,635 K (Sun: 5,772 K)
- Mass
- 0.51 M☉
- Radius
- 0.49 R☉
- Luminosity
- 0.0395 L☉
- Age
- 7.8 billion years (Sun: 4.6)
Planetary System
TOI-6034 b is the only planet known to orbit TOI-6034 so far.
TOI-6034 b — Complete Data
| Radius | 11.920 Earth radii (1.063 Jupiter radii) |
|---|---|
| Mass | 254.00 Earth masses (0.798 Jupiter masses) |
| Density | 0.82 g/cm³ (Earth: 5.51) |
| Orbital period | 2.58 days |
| Orbital distance | 0.029 AU |
| Eccentricity | 0.040 |
| Equilibrium temperature | 714 K (441 °C) |
| Stellar irradiation | 43.00× Earth |
| Distance from Earth | 384.8 light-years (118.0 parsecs) |
| Constellation | Cepheus |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2024-09-03. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-6034 b
Is TOI-6034 b habitable?
No — TOI-6034 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-6034 b?
TOI-6034 b is about 385 light-years from Earth in the constellation Cepheus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 6,772,480 years to get there.
How big is TOI-6034 b compared to Earth?
TOI-6034 b has 11.92 times the radius of Earth and about 254 times its mass.
How long is a year on TOI-6034 b?
One orbit around TOI-6034 takes 2.6 Earth days — short enough that 142 of its years would fit into one Earth year.
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