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25 November 2008 23:38
- a specialized type of photography targeting celestial bodies - including the stars, star trails, constellations, galaxies, nebulae, the moon, planets, asteroids, meteorites, comets, and even man-made satellites
- the first astrophotograph was a picture of the moon taken by John William Draper in 1840
- astrophotographs can be taken with film cameras, digital point and shoot cameras, digital SLRs, modified webcams, or dedicated astronomical CCDs
- cameras can be mounted on tripods for wide-field images of the stars (short exposures) or star trails (long-exposures), or mounted on sophisticated tracking mounts to counteract the rotation of the earth, allowing for multiple long exposures of the same spot in the sky
- images can be taken with camera lenses, or through telescopes
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Orion Telescopes
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