The most important advantage of CCDs over film is that

A) they can cover larger areas of the sky than film can.
B) they record much more light in a given exposure time.
C) they record colors better than film can.
D) their images never fade, as film can.
E) their images do not have to be developed as film does.


B

Physics & Space Science

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In the context of the triangulation method, to find the distance to a star, astronomers use a very long baseline, which is _____

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Physics & Space Science