The infrared sky

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Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984sciam.251...49h&link_type=abstract

Scientific American (ISSN 0036-8733), vol. 251, Nov. 1984, p. 49-57.

Astronomy and Astrophysics

Astronomy

2

Infrared Astronomy, Infrared Astronomy Satellite, Infrared Telescopes, Sky Radiation, Focal Plane Devices, Infrared Imagery, Milky Way Galaxy, Satellite-Borne Instruments, Spaceborne Telescopes

Scientific paper

A general overview of the mission objectives, instrumentation and collected imagery of the Infrared Astronomical Satellite (IRAS) mission is presented. A detailed line drawing is provided which describes the physical characteristics of the satellite's horizon sensors, focal plane assembly, filtering devices and liquid-helium cooling system. Consideration is given to an analysis of the infrared photographic images of the Milky Way, sites of star formation and the spiral galaxy M 31. The satellite operated throughout 1983 recording images of 98 percent of the celestial sphere. The development of second-generation IR satellites for observations in the 1990s is also discussed.

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