曝光的天空被旋转着以补偿地球的自转，然后把一连串的图像叠放在一起，产生了与单一曝光相同的图像，可是很少有数码噪声。
The sky in the exposures was de-rotated to compensate for the rotation of Earth, then images were stacked together producing an image identical to a single exposure but with less digital noise.
绝大多数的数码相机都能曝光30秒而不会产生过多的噪点，这是一个很好的起点，这个曝光时间也可以避免拍下星星因地球自转产生的轨迹。
Most digital cameras can easily a handle a 30-second exposure before noise starts getting out of hand. That's a great place to start.
银河的广袤在这些图片里展示得淋漓尽致，他只用了一个三脚架和一架普通的数码相机就拍到了离地球2万5千光年远的星星。
The enormity of the Milky Way is shown in these stunning images, captured using only a standard digital camera and tripod, of stars 25,000 light years from Earth.
按计划，内斯·波利留下了数码相机，那将是联盟号在太空被烧毁的一部分。但是，他要确保将相机数码卡带回地球。
Nespoli, as planned, left the cameras in part of the Soyuz that burns up in space, but he made sure the digital photo CARDS returned to Earth with him.
尽管如此，一份编码为数码形式，再拆分为许多小小的分组并在地球上四处传送的电子邮件，与握个手并说声“你好”看来还是有着本质区别的。
Yet an email encrypted in digital code, broken into tiny packets and beamed around the planet does seem qualitatively different from someone shaking hands and saying "Hi".
日本航空宇宙探险局的宇航员野口聪一是负责执行STS-130任务的成员之一，他正在使用数码相机透过“圆顶”观测舱舷窗拍摄地球美景。
Japan Aerospace Exploration Agency astronaut Soichi Noguchi of the space shuttle's STS-130 crew wields a digital SLR camera to capture a view of Earth from the Cupola.
日本航空宇宙探险局的宇航员野口聪一是负责执行STS-130任务的成员之一，他正在使用数码相机透过“圆顶”观测舱舷窗拍摄地球美景。
Japan Aerospace Exploration Agency astronaut Soichi Noguchi of the space shuttle's STS-130 crew wields a digital SLR camera to capture a view of Earth from the Cupola.
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