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单词 Infrared Space Observatory
释义
Infrared Space Observatory

Astronomy
  • An ESA satellite for infrared astronomy, launched in 1995 November into a 24-hour elliptical orbit. ISO carried a 0.6-m telescope equipped with a camera (2.5–17 μ‎m), an imaging photopolarimeter (2.5–240 μ‎m), and two spectrometers (2.5–45 μ‎m and 43–198 μ‎m). It ceased operation in 1998 May.

    http://sci.esa.int/iso/33310-summary/ ESA mission website.


Space Exploration
  • The world’s first true orbiting infrared observatory, with a 60-cm diameter mirror. It was launched on 17 November 1995 by the European Space Agency and spent 18 months in an elongated orbit, at a range from the Earth of 1 000–70 500 km, as far as possible outside the radiation belts that swamp its detectors.

    The ISO made the first discovery of water vapour from a source beyond the Solar System (in planetary nebula NGC 2027); traced the spiral arms of the Whirlpool galaxy and detected sites of star formation there; and obtained the first comprehensive spectrum of Saturn's atmosphere.


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