HD 137010 b
Artist's concept of HD 137010 b | |
| Discovery | |
|---|---|
| Discovered by | Kepler (K2) |
| Discovery date | January 27, 2026 |
| Transit | |
| Orbital characteristics | |
| 0.88+0.3 −0.1 AU | |
| Eccentricity | 0 |
| 355.0+200.0 −59.0 d | |
| Inclination | >89.82+0.05 −0.03 |
| Star | HD 137010 |
| Physical characteristics | |
| 1.06+0.06 −0.05 R🜨 | |
| Temperature | 205.0 ± 25.0 K (−68.1 ± 25.0 °C; −90.7 ± 45.0 °F) |
HD 137010 b is an exoplanet candidate detected by the Kepler's K2 mission of NASA. Orbiting the K-type dwarf star HD 137010 in the constellation of Libra, it is located approximately 146 light-years from the Solar System. The candidate was identified from a single 10-hour transit event observed during K2 Campaign 15 in 2017, suggesting an orbital period of about 355 days, nearly identical to that of Earth. With a radius of 1.06 times that of Earth, it is classified as a potential Super-Earth or Earth analog, likely rocky in composition. Due to its host star's lower luminosity, HD 137010 b receives only about 29% of the incident flux that Earth does, placing it near the outer edge of the system's habitable zone with an estimated equilibrium temperature around −68°C (−90°F), potentially colder than Mars. Confirmation as a genuine exoplanet requires additional transits or alternative observations, which may be pursued with missions like TESS or CHEOPS.