In the 1890s he applied his method of interference fringes to an analysis of errors made in astronomical observations using meridian circles.
12.
Gauss arranged for the installation of two meridian circles ( produced by Johann Georg Repsold and Georg Friedrich von Reichenbach in 1818 and 1919.
13.
Very soon, however, I heard of a young student at Lund Observatory who worked alone on modernizing the old meridian circle there.
14.
A long-time concern of Ugueto was the need for a meridian circle, an indispensable instrument for determining time with high precision.
15.
He had a new building constructed on the site in 1830 which was equipped with new instruments : an fr ) and a meridian circle.
16.
Meridian circles have been used since the 18th century to accurately measure positions of stars in order to altitude above the horizon is noted as well.
17.
The accuracy reaches from 0.2 " ( theodolites, small astrolabes ) to 0.01 " ( modern meridian circles, Danjon ).
18.
I had obtained a tenure at the Copenhagen University where I was going to work on the construction of automatic control of the meridian circle in Brorfelde.
19.
Starting in 1819, Bessel determined the position of over 50, 000 stars using a meridian circle from Reichenbach, assisted by some of his qualified students.
20.
E . Myles Standish wrote " Classical ephemerides over the past centuries have been based entirely upon optical observations : almost exclusively, meridian circle transit timings.
