Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992eocm.rept..159g&link_type=abstract
In ESA, Environment Observation and Climate Modelling Through International Space Projects. Space Sciences with Particular Empha
Astronomy and Astrophysics
Astrophysics
Extreme Ultraviolet Radiation, Far Ultraviolet Radiation, Photosphere, Satellite Instruments, Spaceborne Telescopes, Ultraviolet Spectrometers, Astro Missions (Sts), Astronomical Satellites, German Space Program, International Cooperation, Nasa Space Programs
Scientific paper
ORFEUS (Orbital and Retrieval Far and Extreme Ultraviolet Spectrometer) is the first short term scientific space payload of the free flying and retrieval ASTRO-SPAS satellite scheduled to be launched in February 1993. The autonomous scientific mission is limited to 5-7 days. The main scientific objectives are cosmic targets with photospheric temperatures between 10,000 to 1,000,000 K. ORFEUS is a powerful combination of two alternatively operating spectrometers covering the far and extreme ultraviolet spectral range in a telescope with 4 m tube length and an aperture of 1000 mm. The required spectrometric high telescope resolution in the ultraviolet range (40 to 125 nm) exceeds the performance of previous comparable UV instruments by a factor of 30 and is opening a new window in the universe.
Graue Roland
Kampf Dirk
Rippel H.
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