TOI-2537 c
TOI-2537 c is a cold gas giant orbiting TOI-2537 in the constellation Taurus. It lies about 603 light-years from Earth and was discovered in 2024 using the radial velocity method.
Is TOI-2537 c in the Habitable Zone?
TOI-2537 c orbits beyond the outer edge of the habitable zone of TOI-2537. At that distance, any surface water would almost certainly be frozen.
Habitable zone of TOI-2537: 0.432–1.051 AU (conservative: 0.548–0.996 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 ›
Temperature on TOI-2537 c
The equilibrium temperature of TOI-2537 c is about 123 K (-150 °C) — well below freezing. 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-2537 c — one full orbit around TOI-2537 — lasts 1,920.0 Earth days, longer than an Earth year. It orbits at an average distance of 2.780 AU. Its orbit is mildly elliptical (eccentricity 0.29).
How Was TOI-2537 c Discovered?
TOI-2537 c was discovered in 2024 using the radial velocity method, with observations from Multiple Observatories.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
How Far Away Is TOI-2537 c?
TOI-2537 c is 603.3 light-years (185.0 parsecs) from Earth. Light arriving here tonight left the planet around the year 1423. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 10,618,080 years to make the journey.
The Host Star: TOI-2537
TOI-2537
- Surface temperature
- 4,870 K (Sun: 5,772 K)
- Mass
- 0.77 M☉
- Radius
- 0.77 R☉
- Luminosity
- 0.3010 L☉
- Age
- 1.1 billion years (Sun: 4.6)
The TOI-2537 Planetary System
TOI-2537 c is one of 2 known planets in the TOI-2537 system. Its siblings:
- TOI-2537 b (Cold Gas Giant)
TOI-2537 c — Complete Data
| Mass (best estimate) | 2,297.90 Earth masses |
|---|---|
| Orbital period | 1,920.00 days |
| Orbital distance | 2.780 AU |
| Eccentricity | 0.287 |
| Equilibrium temperature | 123 K (-150 °C) |
| Distance from Earth | 603.3 light-years (185.0 parsecs) |
| Constellation | Taurus |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2025-03-03. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-2537 c
Is TOI-2537 c habitable?
No — TOI-2537 c orbits outside the habitable zone of TOI-2537 and is likely too cold for liquid water on its surface.
How far away is TOI-2537 c?
TOI-2537 c is about 603 light-years from Earth in the constellation Taurus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 10,618,080 years to get there.
How long is a year on TOI-2537 c?
One orbit around TOI-2537 takes 1,920.0 Earth days.
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