HD 20794 d是一颗行星，其质量是地球的六倍，围绕着20光年外的一颗类太阳恒星运行。 经过多年的细致分析，克服了探测技术的极限，它的存在得到了证实。虽然它位于宜居带，但它的椭圆轨道给确定其真正的生命潜力带来了挑战。 未来的望远镜可能很快就会对它的大气层有更深入的了解，从而使它成为近年来最激动人心的系外行星发现之一。 新发现的行星HD 20794 ...

With an orbit of 647 days, HD 20794 d is similar to Mars in our solar system. However, its orbit around the star is highly elliptical. This feature causes extreme temperature variations on the planet, ...

天文学家发现了一颗距离地球约20光年的「超级地球」，被命名为 HD 20794 d，其质量约为地球的6倍，环绕着一颗类似太阳的恒星运转。这颗系外行星 ...

Earth, HD 20794 d, in the habitable zone around a Sun-like star 20 light-years away. With a mass six times that of Eart ...

研究人员推测，这颗星球上或许存在外星生命。 这颗新发现的超级地球被命名为“HD 20794 d”，其质量约为地球的6.6倍，位于波江座，围绕着一颗名 ...

As it orbits its star, it moves close enough at one point to experience extreme heat, similar to Venus’s temperature. But at its farthest point, the planet is nearly twice the distance from Earth to ...

距太阳系仅20光年的恒星周围，天文学家确认一个可能适居的世界HD 20794 d，质量约地球六倍，绕一颗类太阳恒星运行，并有液态水存在的适居带，尽管某些特性使其孕育生命仍异议，但这项发现令人振奋，代表未来太空任务或许有机会直接拍摄它的形象。

HD 20794 d, a planet six times the mass of Earth, orbits a Sun-like star just 20 light-years away. Its presence was confirmed ...

这颗新发现的行星被命名为HD 20794 d，质量是地球的6倍，距离地球约20光年，围绕一颗类似太阳的恒星运行。 它的轨道位于该星系的宜居带内 ...

According to experts at the University of Oxford, the planet known as HD 20794 d has a mass six times greater than Earth's ...

A new world has just been found orbiting a Sun-like star only 20 light-years away, and it could be one of the most promising ...

HD 20794 d最低质量约地球5.82倍，半径约为地球1.7-2.1倍，公转周期约648个地球日，且刚好落在恒星的适居带。 然这颗行星的适居性仍有许多变量。