Telescopic surveys usually reveal just basic information about an extrasolar planet's minimum mass, its distance from its parent star, and whether it is likely to be gassy or rocky, like Earth.
望远镜观测通常仅仅能提供关于某颗系外行星的基本信息,诸如最小质量、与母恒星的距离、以及是否更可能是气态的或者像地球那样是岩石质的。
Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth, or about the mass of Neptune, that orbit the parent star once every 6 to 600 days.
经过长达六年的观察,科学家发现有五颗行星的质量是地球的13-25倍,或者说,与海王星的质量差不多,它们围绕恒星的旋转周期在6到600天之间。
The new planet is thought to have a minimum mass 1.25 times that of Jupiter and circles in close proximity to its parent star, with an orbit lasting just 16.2 days.
天文学家们认为这颗新发现的行星的质量至少是木星的1.25倍,它的运行轨道非常贴近其母星,绕其运行一周只需16.2天。
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