Why Is an Image Recorded with a CCD Better for Astronomers

question 34

Multiple Choice

Why is an image recorded with a CCD better for astronomers than an image recorded on photographic film or plates?

• A) CCD's are more efficient; more of the light is recorded and not wasted
• B) CCD's allow more accurate measurements of the brightness of each part of the image
• C) CCD's have digital output that can go directly to a computer
• D) all of the above
• E) none of the above

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