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The Modernization of the Pulkovo Photographic (Photoelectric) Vertical Circle by a CCD Array

Published online by Cambridge University Press:  07 August 2017

G. A. Goncharov
Affiliation:
Pulkovo Observatory
B. K. Bagildinsky
Affiliation:
Pulkovo Observatory
E. V. Kornilov
Affiliation:
Pulkovo Observatory
D. D. Polojentsev
Affiliation:
Pulkovo Observatory
K. V. Rumyantsev
Affiliation:
Pulkovo Observatory
V. D. Shkutov
Affiliation:
Pulkovo Observatory

Extract

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The Zverev photographic vertical circle (PVC) of the Pulkovo observatory is in the process of modernization. The features of the vertical circle are:

  1. a) Maksutov mirror-lens optical system with small aberrations and wide passband: aperture: 20 cm, focal length: 200 cm, focal scale: 103 arcsec/mm.

  2. b) Very compact instrument: 140 cm total length, 60 cm — tube.

  3. c) Wide field: 25 × 25 mm = 40′ × 40′. Wide-field imaging can be combined with meridian observations.

  4. d) Easily-reversible instrument: reversing takes less than 30 seconds.

  5. e) Two divided vertical circles of glass. Photoelectric circle reading microscopes.

  6. f) Photographic micrometer in focal plane. This will be changed with a CCD micrometer.

Type
Section II — Poster Papers
Copyright
Copyright © Kluwer 1995 

References

Hoeg, E. 1995 in IAU Symposium No. 166, Astronomical and Astrophysical Objectives, Kluewer Academic Pub., in press.Google Scholar
Goncharov, G. 1995 in IAU Symposium No. 166, Astronomical and Astrophysical Objectives of Sub-Millisecond Optical Astrometry, Kluwer Academic Pub., Dordrecht, in press.Google Scholar