transit instrument

Show Summary Details

Quick Reference

A telescope constrained to rotate in the plane of the meridian about a horizontal axis mounted east–west. It is used for measuring the times of meridian transit of stars and hence deriving clock error or longitude. See also transit circle.

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.