The pentag meridian circle.
Abstract
The main drawbacks of the existing meridian instruments are given. An optical-mechanical scheme of a pentag meridian circle is presented. The instrument can be used as meridian circle, as a vertical circle, as a zenith telescope and a reversible transit instrument. Formulae for the reduction of observations are given.
- Publication:
-
Izvestiya Glavnoj Astronomicheskoj Observatorii v Pulkove
- Pub Date:
- 1985
- Bibcode:
- 1985IzPul.201...13N
- Keywords:
-
- Instrument Orientation;
- Pointing Control Systems;
- Telescopes;
- Collimation;
- Error Analysis;
- Systems Engineering;
- Instrumentation and Photography;
- Meridian Circles