TOI-4582 b
TOI-4582 b is a cold gas giant orbiting TOI-4582 in the constellation Draco. It lies about 1,252 light-years from Earth and was discovered in 2023 using the transit method.
How Big Is TOI-4582 b?
TOI-4582 b has a radius of 10.54 times that of Earth, or 0.94 times the radius of Jupiter. Its mass is 168 times that of Earth.
Is TOI-4582 b in the Habitable Zone?
The position of TOI-4582 b relative to the habitable zone of TOI-4582 cannot be precisely determined from the available orbital data.
Habitable zone of TOI-4582: 1.565–3.756 AU (conservative: 1.982–3.561 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-4582 b — one full orbit around TOI-4582 — lasts 31.0 Earth days, shorter than Mercury's 88-day year. Its orbit is highly elliptical (eccentricity 0.51), swinging dramatically closer to and farther from its star.
How Was TOI-4582 b Discovered?
TOI-4582 b was discovered in 2023 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-4582 b?
TOI-4582 b is 1,251.9 light-years (383.8 parsecs) from Earth. Light arriving here tonight left the planet about 1,252 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 22,033,440 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. TOI-4582 b scores 0.09, ranking #4,494 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: TOI-4582
TOI-4582
- Surface temperature
- 5,190 K (Sun: 5,772 K)
- Mass
- 1.34 M☉
- Radius
- 2.50 R☉
Planetary System
TOI-4582 b is the only planet known to orbit TOI-4582 so far.
TOI-4582 b — Complete Data
| Radius | 10.536 Earth radii (0.940 Jupiter radii) |
|---|---|
| Mass | 168.45 Earth masses (0.530 Jupiter masses) |
| Orbital period | 31.03 days |
| Eccentricity | 0.510 |
| Earth Similarity Index | 0.09 |
| Distance from Earth | 1,251.9 light-years (383.8 parsecs) |
| Constellation | Draco |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2023 |
Data: NASA Exoplanet Archive, last updated 2023-01-23. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-4582 b
Is TOI-4582 b habitable?
TOI-4582 b is not known to orbit within the habitable zone of TOI-4582, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is TOI-4582 b?
TOI-4582 b is about 1,252 light-years from Earth in the constellation Draco. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 22,033,440 years to get there.
How big is TOI-4582 b compared to Earth?
TOI-4582 b has 10.54 times the radius of Earth and about 168 times its mass.
How long is a year on TOI-4582 b?
One orbit around TOI-4582 takes 31.0 Earth days — short enough that 12 of its years would fit into one Earth year.
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