The astronomers tracked the Cepheids using the Warsaw Telescope located in the Chilean Andes.
天文学家使用位于智利安第斯山脉的华沙望远镜追踪造父变星。
These stars pulsate at regular intervals and can be seen through the galaxy's immense clouds of interstellar dust that can make dimmer stellar bodies hard to spot.
这些恒星有规律地发生脉动,可以透过星系中巨大的星际尘埃云看到,这些尘埃云会使较暗的恒星体很难被发现。
The map showed that the galaxy's disk, far from flat, is significantly warped and varies in thickness from place to place, with increasing thickness measured further from the galactic center.
这张地图显示,银河系的星系盘远非平面状,而明显是弯曲的,且各处厚度不一,距离星系中心越远处越厚。
The disk boasts a diameter of about 14,000 light years. Each light year is about 6 trillion miles (9 trillion km).
银河系星系盘的直径约为1.4万光年。每光年大约有6万亿英里(9万亿公里)。
The Milky Way began to form relatively soon after the Big Bang explosion that marked the beginning of the universe some 13.8 billion years ago.
银河系是在大约138亿年前宇宙大爆炸后不久开始形成的。宇宙大爆炸标志着宇宙的起源。
The sun, located roughly 26,000 light years from the supermassive black hole residing at the center of the galaxy, formed about 4.5 billion years ago.
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2020-09-15
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