TOI-2497 b
TOI-2497 b is a hot Jupiter orbiting TOI-2497 in the constellation Orion. It lies about 931 light-years from Earth and was discovered in 2023 using the transit method.
How Big Is TOI-2497 b?
TOI-2497 b has a radius of 11.14 times that of Earth, or 0.99 times the radius of Jupiter. Its mass is 1,532 times that of Earth, giving it a density of 6.10 g/cm³ — comparable to rocky planets like Earth (5.51 g/cm³).
Is TOI-2497 b in the Habitable Zone?
The position of TOI-2497 b relative to the habitable zone of TOI-2497 cannot be precisely determined from the available orbital data.
Temperature on TOI-2497 b
The equilibrium temperature of TOI-2497 b is about 1,595 K (1,322 °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-2497 b — one full orbit around TOI-2497 — lasts 10.7 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.117 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.20).
How Was TOI-2497 b Discovered?
TOI-2497 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-2497 b?
TOI-2497 b is 930.5 light-years (285.3 parsecs) from Earth. Light arriving here tonight left the planet around the year 1096. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 16,376,800 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-2497 b scores 0.08, ranking #4,674 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: TOI-2497
TOI-2497
- Surface temperature
- 7,360 K (Sun: 5,772 K)
- Mass
- 1.86 M☉
- Radius
- 2.36 R☉
- Luminosity
- 14.7001 L☉
- Age
- 1.0 billion years (Sun: 4.6)
Planetary System
TOI-2497 b is the only planet known to orbit TOI-2497 so far.
TOI-2497 b — Complete Data
| Radius | 11.142 Earth radii (0.994 Jupiter radii) |
|---|---|
| Mass | 1,531.93 Earth masses (4.820 Jupiter masses) |
| Density | 6.10 g/cm³ (Earth: 5.51) |
| Orbital period | 10.66 days |
| Orbital distance | 0.117 AU |
| Eccentricity | 0.195 |
| Equilibrium temperature | 1,595 K (1,322 °C) |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 930.5 light-years (285.3 parsecs) |
| Constellation | Orion |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2023 |
Data: NASA Exoplanet Archive, last updated 2023-03-15. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2497 b
Is TOI-2497 b habitable?
TOI-2497 b is not known to orbit within the habitable zone of TOI-2497, and as a hot Jupiter it is an unlikely candidate for life as we know it.
How far away is TOI-2497 b?
TOI-2497 b is about 931 light-years from Earth in the constellation Orion. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 16,376,800 years to get there.
How big is TOI-2497 b compared to Earth?
TOI-2497 b has 11.14 times the radius of Earth and about 1,532 times its mass.
How long is a year on TOI-2497 b?
One orbit around TOI-2497 takes 10.7 Earth days — short enough that 34 of its years would fit into one Earth year.
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