Physics – Optics
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985iraj...17...50j&link_type=abstract
Irish Astronomical Journal (ISSN 0021-1052), vol. 17, March 1985, p. 50-55.
Physics
Optics
Cassegrain Optics, Faint Object Camera, Guidance Sensors, Spaceborne Telescopes, Spectrographs, Stellar Spectrophotometry, European Space Programs, Focal Plane Devices, Galactic Nuclei, Galaxies, Nasa Space Programs, Ultraviolet Spectra
Scientific paper
The 2.4 m Space Telescope (ST) and supporting instruments are to be placed in a low earth orbit and maintained for an extended period as an international observatory. The components and functions of the Wide Field/Planetary Camera and the Faint Object Camera are described; these two direct-imaging cameras operate complementary. The capabilities of the Faint Object Spectrograph, which is designed for studying faint extragalactic objects, and the High Resolution Spectrograph, which is to be used for observing stars in our own galaxy, are discussed. The High Speed Phhotometer that is included in the focal plane of the ST is to be utilized for defining and calibrating an ultraviolet stellar photometry system, and exploring fields of ultraviolet stellar polarimetry and photometry of compact objects. The control of the spacecraft with the Fine Guidance Sensors is analyzed. The allocation of observing time, and the selection of astronomical projects to be conducted with the ST are examined.
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