TOI-2184 b
TOI-2184 b is a hot Jupiter orbiting TOI-2184 in the constellation Volans. It lies about 2,571 light-years from Earth and was discovered in 2022 using the transit method.
How Big Is TOI-2184 b?
TOI-2184 b has a radius of 11.40 times that of Earth, or 1.02 times the radius of Jupiter. Its mass is 207 times that of Earth, giving it a density of 0.76 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is TOI-2184 b in the Habitable Zone?
The position of TOI-2184 b relative to the habitable zone of TOI-2184 cannot be precisely determined from the available orbital data.
Habitable zone of TOI-2184: 2.294–5.379 AU (conservative: 2.906–5.100 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on TOI-2184 b
TOI-2184 b receives 1,429 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on TOI-2184 b — one full orbit around TOI-2184 — lasts 6.91 Earth days, shorter than Mercury's 88-day year. Its orbit is mildly elliptical (eccentricity 0.08).
How Was TOI-2184 b Discovered?
TOI-2184 b was discovered in 2022 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-2184 b?
TOI-2184 b is 2,571.1 light-years (788.3 parsecs) from Earth. Light arriving here tonight left the planet about 2,571 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 45,251,360 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-2184 b scores 0.08, ranking #4,713 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: TOI-2184
TOI-2184
- Surface temperature
- 5,966 K (Sun: 5,772 K)
- Mass
- 1.53 M☉
- Radius
- 2.90 R☉
- Age
- 2.3 billion years (Sun: 4.6)
Planetary System
TOI-2184 b is the only planet known to orbit TOI-2184 so far.
TOI-2184 b — Complete Data
| Radius | 11.400 Earth radii (1.017 Jupiter radii) |
|---|---|
| Mass | 206.59 Earth masses (0.650 Jupiter masses) |
| Density | 0.76 g/cm³ (Earth: 5.51) |
| Orbital period | 6.91 days |
| Eccentricity | 0.080 |
| Stellar irradiation | 1,429.00× Earth |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 2,571.1 light-years (788.3 parsecs) |
| Constellation | Volans |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2022-01-31. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2184 b
Is TOI-2184 b habitable?
TOI-2184 b is not known to orbit within the habitable zone of TOI-2184, and as a hot Jupiter it is an unlikely candidate for life as we know it.
How far away is TOI-2184 b?
TOI-2184 b is about 2,571 light-years from Earth in the constellation Volans. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 45,251,360 years to get there.
How big is TOI-2184 b compared to Earth?
TOI-2184 b has 11.40 times the radius of Earth and about 207 times its mass.
How long is a year on TOI-2184 b?
One orbit around TOI-2184 takes 6.9 Earth days — short enough that 53 of its years would fit into one Earth year.
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