'Super-Earth' has potential for sustaining water. Located 20 light-years away, scientists believe that HD 20794 d could be at an optimal distance from its nearest star to sustain water on its surface.

HD 20794 d orbits a G-type star similar to the Sun and takes 647 days to complete one orbit—40 days fewer than Mars. The planet has a mass 6.6 times greater than Earth, making it easier to study ...

The confirmed discovery of exoplanets revolutionized our understanding of the universe. Among the thousands of confirmed exoplanets, HD 20794 d in particular, recently attracted attention for a unique ...

This is the background to the discovery of super-Earth HD 20794 d by an international team. The new planet lies in an eccentric orbit, so that it oscillates in and out of its star's habitable zone.

The second planet, which received the designation HD 101581 c, is almost the size of the Earth (0.99 Earth radii), while its maximum mass was determined to be 4.2 Earth masses.

The backdrop for one team is the discovery of super-Earth HD 20794 d, an exoplanet detected by researchers from the University of Geneva (UNIGE) and NCCR PlanetS. Orbiting in an eccentric path, HD ...

For stars such as the Sun or HD 20794, it can extend from 0.7 to 1.5 astronomical units (AU), encompassing not only the orbit of the Earth but also that of Mars in the case of the Sun.