IRAS being prepared for launch

IRAS being prepared for launch

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Caption: IRAS (Infrared Astronomical Satellite) being prepared for launch by US and Dutch technicians at Vandenberg Air Force Base, California. Launch date was January 26, 1983. The satellite was placed in a 900 kilometre-high (560 miles) near-polar orbit, circling the Earth 14 times a day. IRAS consists of a 60-cm infrared telescope, supercooled to 2 degrees above absolute zero (-270 degrees Celsius), & 62 infrared detectors. Unhampered by Earth's atmosphere, which absorbs infrared radiation, it performed an all-sky survey at infrared wavelengths & studied particular sources.

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Keywords: astronomical, astronomy, astrophysics, infrared, infrared astronomical, ir, iras, iras satellite, satellite, satellites

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