From SEG Wiki
Revision as of 02:33, 18 October 2017 by Sarencibia (talk | contribs) (Marked this version for translation)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Other languages:
English • ‎español

1. An instrument for measuring distances, consisting of a telescope through which a vertical graduated rod can be seen, overlain by horizontal parallel crosshairs (stadia hairs, located in the focal plane of the telescope eyepiece); the amount of rod seen between the crosshairs allows one to determine the distance to the rod. 2. The rod alone.