TOI-1422 c
TOI-1422 c is a super-Earth orbiting the G2 V star TOI-1422 in the constellation Andromeda. It lies about 506 light-years from Earth and was discovered in 2025 using the radial velocity method.
How Big Is TOI-1422 c?
TOI-1422 c has a radius of 2.61 times that of Earth. Its mass is 14.0 times that of Earth, giving it a density of 4.30 g/cm³ — between that of rocky and gaseous planets.
Is TOI-1422 c in the Habitable Zone?
The position of TOI-1422 c relative to the habitable zone of TOI-1422 cannot be precisely determined from the available orbital data.
Temperature on TOI-1422 c
The equilibrium temperature of TOI-1422 c is about 628 K (355 °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-1422 c — one full orbit around TOI-1422 — lasts 34.6 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.205 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.20).
How Was TOI-1422 c Discovered?
TOI-1422 c was discovered in 2025 using the radial velocity method, with observations from Roque de los Muchachos Observatory.
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-1422 c?
TOI-1422 c is 506.0 light-years (155.1 parsecs) from Earth. Light arriving here tonight left the planet around the year 1520. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 8,905,600 years to make the journey.
The Host Star: TOI-1422
TOI-1422
- Spectral type
- G2 V
The TOI-1422 Planetary System
TOI-1422 c is one of 2 known planets in the TOI-1422 system. Its siblings:
- TOI-1422 b (Puffy Planet)
TOI-1422 c — Complete Data
| Radius | 2.610 Earth radii (0.233 Jupiter radii) |
|---|---|
| Mass | 14.00 Earth masses (0.044 Jupiter masses) |
| Density | 4.30 g/cm³ (Earth: 5.51) |
| Orbital period | 34.56 days |
| Orbital distance | 0.205 AU |
| Eccentricity | 0.200 |
| Equilibrium temperature | 628 K (355 °C) |
| Distance from Earth | 506.0 light-years (155.1 parsecs) |
| Constellation | Andromeda |
| Discovery method | Radial Velocity |
| Discovery facility | Roque de los Muchachos Observatory |
| Discovery year | 2025 |
Data: NASA Exoplanet Archive, last updated 2025-12-04. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TOI-1422 c
Is TOI-1422 c habitable?
TOI-1422 c is not known to orbit within the habitable zone of TOI-1422, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is TOI-1422 c?
TOI-1422 c is about 506 light-years from Earth in the constellation Andromeda. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 8,905,600 years to get there.
How big is TOI-1422 c compared to Earth?
TOI-1422 c has 2.61 times the radius of Earth and about 14.0 times its mass.
How long is a year on TOI-1422 c?
One orbit around TOI-1422 takes 34.6 Earth days — short enough that 11 of its years would fit into one Earth year.
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