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Refracting telescope - A refracting or refractor telescope is a type of optical telescope that refracts or bends light at each end using lenses. This refraction causes parallel light rays to converge at a focal point; while those which were not parallel converge upon a focal plane.
NGC 4725 - NGC 4725 is a barred spiral galaxy, 41 million light years away in the constellation Coma Berenices. In 2003, the Spitzer Space Telescope found the missing bar in the galaxy.
Automated refractor - An automated refractor, or autorefractor, is a computer-controlled machine used during an eye examination to provide an objective measurement of a person's refractive error and prescription for glasses or contact lenses. This is achieved by measuring how light is changed as it enters a person's eye.
NGC 1316 - [hst.jpg|thumb|An image of NGC 1316 taken by the Hubble Space Telescope]
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