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The new CCD Zenith Tube

Published online by Cambridge University Press:  01 October 2007

C. Ron ,
V. Štefka  and
J. Vondrák
C. Ron
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic, Boční II, 141 31 Prague, Czech Republic e-mail: [email protected], [email protected], [email protected]
V. Štefka
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic, Boční II, 141 31 Prague, Czech Republic e-mail: [email protected], [email protected], [email protected]
J. Vondrák
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic, Boční II, 141 31 Prague, Czech Republic e-mail: [email protected], [email protected], [email protected]
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Abstract

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The reconstruction of the Photographic Zenith Tube (PZT) at Ondřejov has been finished recently. The main improvement of the instrument consists in the replacement of the photographic plate with the CCD chip, and a completely new electronic control system. In addition to the astrometric use of the observations we intend to derive the variations of the local vertical and compare them with gravimetric observations of the nearby station Pecný.

Keywords

astrometrytelescopes
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 120 - 121
Copyright
Copyright © International Astronomical Union 2008

References

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