TOI-5795 b
TOI-5795 b is a Neptune-like planet orbiting the G3 V star TOI-5795 in the constellation Aquila. It lies about 511 light-years from Earth and was discovered in 2025 using the transit method.
How Big Is TOI-5795 b?
TOI-5795 b has a radius of 5.62 times that of Earth, or 0.50 times the radius of Jupiter. Its mass is 23.7 times that of Earth, giving it a density of 0.73 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is TOI-5795 b in the Habitable Zone?
TOI-5795 b orbits inside the inner edge of the habitable zone of TOI-5795. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TOI-5795: 0.801–1.890 AU (conservative: 1.014–1.792 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on TOI-5795 b
The equilibrium temperature of TOI-5795 b is about 1,137 K (864 °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.
Orbit and Year Length
A year on TOI-5795 b — one full orbit around TOI-5795 — lasts 6.14 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.064 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.25).
How Was TOI-5795 b Discovered?
TOI-5795 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-5795 b?
TOI-5795 b is 510.5 light-years (156.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1516. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 8,984,800 years to make the journey.
The Host Star: TOI-5795
TOI-5795
- Spectral type
- G3 V
- Surface temperature
- 5,715 K (Sun: 5,772 K)
- Mass
- 0.90 M☉
- Radius
- 1.08 R☉
- Luminosity
- 1.1300 L☉
- Age
- 10.2 billion years (Sun: 4.6)
Planetary System
TOI-5795 b is the only planet known to orbit TOI-5795 so far.
TOI-5795 b — Complete Data
| Radius | 5.620 Earth radii (0.501 Jupiter radii) |
|---|---|
| Mass | 23.66 Earth masses (0.074 Jupiter masses) |
| Density | 0.73 g/cm³ (Earth: 5.51) |
| Orbital period | 6.14 days |
| Orbital distance | 0.064 AU |
| Eccentricity | 0.250 |
| Equilibrium temperature | 1,137 K (864 °C) |
| Distance from Earth | 510.5 light-years (156.5 parsecs) |
| Constellation | Aquila |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2025 |
Data: NASA Exoplanet Archive, last updated 2025-08-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-5795 b
Is TOI-5795 b habitable?
No — TOI-5795 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TOI-5795 b?
TOI-5795 b is about 511 light-years from Earth in the constellation Aquila. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 8,984,800 years to get there.
How big is TOI-5795 b compared to Earth?
TOI-5795 b has 5.62 times the radius of Earth and about 23.7 times its mass.
How long is a year on TOI-5795 b?
One orbit around TOI-5795 takes 6.1 Earth days — short enough that 59 of its years would fit into one Earth year.
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