Stars of the first magnitude are the brightest.
一等星最明亮。
First magnitude
英语例句库
原声例句
美国历史
Their struggles, their rights, and their place in the economy of the nation raised problems of the first magnitude.
他们的斗争、他们的权利以及他们在国家经济中的地位引发了头等大事。
一先令蜡烛（下）
And her third statement prophesied the death by drowning of a woman star of the first magnitude, whose name, of course, she gave, but the sob sister equally of course could not reveal.
她的第三个陈述预言了一位女明星将溺水身亡，当然，她说出了她的名字，但哭泣的姐姐同样当然不能透露。
英语百科
Magnitude (astronomy)
In astronomy, magnitude is the logarithmic measure of the brightness of an object, measured in a specific wavelength or passband, usually in the visible or near-infrared spectrum. An imprecise but systematic determination of the magnitude of objects was introduced in ancient times by Hipparchus.