Overview

vertical circle


'vertical circle' can also refer to...

 

More Like This

Show all results sharing this subject:

  • Astronomy and Astrophysics

GO

Show Summary Details

Quick Reference

A form of meridian circle which can be rotated about a vertical axis so that observations may be made in two orientations 180 ° apart. Zenith distance is measured by combining the circle readings on a star in the two orientations; the change in the instrumental zero point between orientations is measured by a spirit level.

Subjects: Astronomy and Astrophysics.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.