Description
Wood, metal, glass
Metal black frame with wood handle and silver scale. Horizon mirror is broken, includes 4 index filters, 3 horizon filters, 3 brass telescopes, 2 lens caps, wooden handle, 6” radius on scale, maker and model 4323 marked on index arm, vernier read by magnify lens.
Box is 9 5/8” x 9 5/8” x 5 ¼” with hinge top, two latches, lock, marked “obs 14,” with metal handle.
Acquired in exchange for small Fauth chronograph. Saegmuller joined Bausch and Lomb. In 1905, the company included all three names until 1907.
The artificial horizon:
Wood, metal, glass
In the Astronomy department is the box with the cover, marked Fauth & Co. Box is 8 3/8” x 6 ¼” x 5 ¾”, dove tails visible, 2 hook latches, exterior university id tag plus paper label #6 .. Both the tray and bottle are corroded. Wind shield is greenish metal and glass. A
The artificial horizon was used with sextant to determine the altitude of objects when the true horizon was not visible. They most commonly consist of a trough, bottle with mercury, and a wind shield consisting of two panes of glass at right angles to the observer’s line of sight. It was used by viewing the sun or star directly and then again in the reflection of the mercury surface. You would then have two measurements can could divide by two. In the Saegmuller catalog (page 63) it cost $30.
Publisher
Astronomy Department, University of Illinois, Urbana, Illinois