但现在，他说这种争论其实是没有实际意义的。因为最需要用行星的定义来进行甄别的，是那些我们根本没还没发现的，小得多的，太阳系外的星体。
But for now, he said, the issue is a moot point, because the definition of a planet was necessary mostly to sort out objects that are much smaller than anything we've seen outside our solar system.
针对系外行星系统的最新模拟可能意味着“可居住”行星的定义需彻底颠覆。
New simulations of extrasolar planetary systems may mean the definition of "habitable" planets needs to be completely overhauled.
这一定义将会大大地加长太阳系行星的名单。
Such a definition would greatly expand the list of planets in the solar system.
克罗斯维尔认为，我们对行星的定义应当简化，即行星是一种周期性围绕太阳旋转的星体，其直径不应小于冥王星的直径。
Croswell believes we should define a planet simply - as something that goes around the sun and has the diameter of Pluto or more.
肯恩·克罗斯维尔：按照这样的定义，不仅冥王星可以称得上行星，太阳系中符合条件的星体即使没有上百个，也有数十个了。
Ken Croswell: It would confer planet-hood not just on Pluto but on so many other things too, probably dozens - if not hundreds - of other objects in the solar system.
在定义行星这点上，IAU给了行星一个说法，“现在我们就要使用这个定义来完这场游戏了”。
In the case of defining a planet, IAU made the call, and "now we have to use this definition and try to play the game."
根据上述的定义，国际天文联会进一步决定将冥王星拨归为矮行星，并成为其中一类海王星外天体的原型。
The IAU further resolves that Pluto is a dwarf planet by the above definition and is recognized as the prototype of a new category of Trans-Neptunian Objects.
根据国际天文学联合会的定义，“矮行星”应该有一条环绕太阳的轨道，它不能清除其轨道附近的其它天体，而且不是一颗卫星。
According to IAU, a "dwarf planet" should have an orbit around the Sun. It will not have a clear neighborhood around its orbit, and must not be a satellite.
这是因为它不符合行星的新定义。
That's because it doesn't meet a new definition for planets.
现在，我想在官方的对行星的定义出来以前，冥王星的地位问题还将持续。
But now? I think its status will continue to be questioned until there's an official definition for planet.
有许多书籍给予中点组合定义，最有名的是莱因霍尔德•艾伯丁的《行星组合的影响》。
There are a number of books which give delineations for midpoint combinations, the most famous being Reinhold Ebertin's The Combination of Stellar Influences.
根据定义，一颗行星必须能够清除其轨道附近的其它天体。
Accordimg to the definition, a planet must have a clear neighbourhood around its orbit.
土星的任务是描绘现实。它是一颗“把钱留在这儿”的行星。它的作用之一就是定义责任。
Saturn's job is to delineate reality - it's "the buck stops here" planet - and one of its roles is defining responsibility.
其中一个版本的定义将使得行星的数目大增，达到12个；
One version of the definition would have actually boosted the number of planets to 12;
也许天文学家们必须重新思考他们对于“行星”的定义。
Or maybe astronomers will have to rethink their definition of "planet."
也许天文学家们必须重新思考他们对于“行星”的定义。
Or maybe astronomers will have to rethink their definition of "planet."
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