Abstract
The design of a new type of astrometric measuring machine, recently installed at Hamburg Observatory is described. The measuring system consists of a very compact high-precision, air-bearing, granite x-y measuring table; the photoplate is digitised in a frame-by-frame mode using the VIDEK-KODAK MEGAPLUS CCD-camera which provides a frame size of 1035 × 1320 square pixels of 6.8 × 6.8 micrometers at unit magnification. The machine design is based on a fully modular concept; machine operation and camera data are handled by independent computer systems. The maximum measuring area is about 270 × 270 mm2, typical astrograph plates (measuring area ≈ 220 × 220 mm2) can be digitised in about 30 minutes. First measuring programs will concentrate on the Hipparcos groundbased extragalactic reference link and various catalogues, in particular remeasurement of AC zones and the AGK2 plates.
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© 1992 Springer Science+Business Media Dordrecht
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de Vegt, C., Winter, L., Zacharias, N. (1992). A New Astrometric Measuring Machine: Design and Astronomical Programmes. In: MacGillivray, H.T., Thomson, E.B. (eds) Digitised Optical Sky Surveys. Astrophysics and Space Science Library, vol 174. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2472-0_16
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DOI: https://doi.org/10.1007/978-94-011-2472-0_16
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