CCD cameras have brought a vast new wealth to astronomy. Amateur astronomers and students now undertake observing projects that would have been unimaginable a decade ago: resolving sub-arcsecond details on the planets, recording 21st magnitude stars, measuring the motions of nearby stars, uncovering scores of new asteroids, charting the ups and downs of variable stars, and finding supernovae by the dozen. And a vast wealth of magnificent planet, nebula, and galaxy images resides on web sites around the world. No longer is the taking of high-quality data restricted to professional astronomers.
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