Apollo Telescope Mount
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Apollo Telescope Mount(ATM) The complex telescope mount on NASA's orbiting space laboratory Skylab. The six principal instruments carried on the mount operated in the X-ray and/or ultraviolet spectral regions, not accessible to ground-based instruments. Two X-ray telescopes (0.3–6, 0.6–3.3 nm) and a white-light coronagraph (350–700 nm) were used in studying the solar corona. An XUV spectroheliograph (15–62 nm), a UV spectroheliometer (30–140 nm), and a UV spectrograph (97–394 nm) provided data on the Sun's chromosphere. The observations were made between May 1973 and Feb. 1974.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006