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From the photographer: “Comet Hyakutake over Rabbit Island (Manana Island), Oahu, Hawaii. On the night this photo was taken the comet passed very close to Polaris, so a sharp image of the comet could be obtained without use of an equatorial mount to compensate for the Earth’s rotation. As you move further away from the north celestial pole the Earth’s rotation leaves clear star trails in this long exposure. This photograph was taken using film in 1996. With a modern digital camera (which are more sensitive than film), a short enough exposure could be used to freeze both the land and the sky, without any trailing from the Earth’s rotation.”

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