Why astronomers are not perceiving this changes of planetary orbits?

为什么天文学家没有察觉这种行星轨迹变化？

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Very accurate predictions of planetary orbits require corrections to the central-field approximation.

想要非常准确地预言行星的轨道，就需要对中心场近似进行修正。

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The heat flow, it was shown, is an absolutely vital part of the process in the stabilisation of planetary orbits.

研究显示，热能的流动对于稳定行星轨道是决定性的关键。

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"The eccentric planetary orbits seen in these systems are essentially scars from past disruptions caused by the companion star, " co-author Sean Raymond, of the University of Bordeaux and the National Center for Scientific Research in France, said in a statement.

MSN: Alien planets face danger from double-star systems