天体通常“名不副实”，比如，金牛座或白羊座几乎丝毫都不像小公牛或小公羊。
Astronomical objects generally don't live up to their names, with constellations like Taurus or Aries bearing little resemblance to a bull or ram.
除非你的物理学专业极端理论化，或者是天体物理，否则你通常是可以在工业界找到一个相关的职位的。
Unless your physics specialty is deeply theoretical or has to do with astrophysics, you can usually find an industry job that is related to your work.
卫星通常被认为形成于两种途径：一是由它们母星的同性云状碎片合并而成，一是被母星重力抓住的游离天体。
Moons are generally thought to form in one of two ways - either by coalescing from the same cloud of debris as their parent planet, or as wandering objects captured by the parent's gravitational pull.
方位角观察者通过测量所具有的水平角度，从某一参考方向顺时针测量，如从北部或从参考天体处，通常从北极星。
The horizontal Angle of the observer's bearing in surveying, measured clockwise from a referent direction, as from the north, or from a referent celestial body, usually Polaris.
在视场等级增加时，你通常希望看到更黯淡的深空天体。
As the view level increases, you will normally want to show fainter deep sky objects.
一种被冰覆盖的绕日运行的小天体，通常有着一个极高度椭圆的轨道，这使其在轨道的一端尽头非常接近太阳，而在轨道另一端尽头却离太阳非常遥远。
A small icy object orbiting the Sun, often in a very highly elliptical orbit which takes it very close to the Sun at one end of its orbit, and very far away from the Sun at the other end of its orbit.
我们通常…通常用它来跟踪有潜在危险的小天体，发出强大的无线电脉冲然后聆听回波。
We use … used it to track potentially dangerous asteroids, sending out a strong pulse of radio waves and listening for the echo.
但是象参宿四那样相对稀少的巨型恒星是如何出现的呢？同样多的物质材料通常可以产生一批象太阳大小的天体，甚至可以产生更多的普通红矮星。
But how do relatively rare titans such as Betelgeuse emerge from the same stuff that usually yields batches of sun-sized orbs and even more common red dwarfs?
但是象参宿四那样相对稀少的巨型恒星是如何出现的呢？同样多的物质材料通常可以产生一批象太阳大小的天体，甚至可以产生更多的普通红矮星。
But how do relatively rare titans such as Betelgeuse emerge from the same stuff that usually yields batches of sun-sized orbs and even more common red dwarfs?
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