479
Whalley, England. (See Stonyhtjrst.)
I. K. K. Universitiits Stermcarte in Wdhring.
Longitude from Greenwich , l h 5 m 21.49 s E.
Latitude, 48° 13' 55.4" N.
Directors : M. Hell, 1750.
F. von Friesnecicer, 1792.
J. S. Burg, 1817.
J. J. von Lixtrow, 1819.
K. L. von Littroiv, 1841.
The first observations made in Vienna were undertaken in 1745 bythe Jesuits J. Franqois and J. Liesgang. A permanent observatorywas founded in 1750. It was rebuilt from 1820 to 1S26, and locatedamong the university buildings. In 1874 a new establishment on agreatly enlarged scale was erected at Wiihring, outside the town, andcompleted in 1879.
Instruments :
(a) Meridian circle: Made by Christian Starke, at Vienna (afterthe example of the meridian circles of Keichenbach) ; diameter of cir-cles, 36 inches; divided to 3'; read by four microscopes to single seconds;aperture of objective, 48 inches; magnifying power ordinarily employed120 diameters.
{V) Prime vertical: Maker, Christian Starke; aperture, 50 inches;magnifying power, 120 diameters.
(c) . Equatorial instruments : One, made by Alvan Clark & Sons;
aperture of objective, Ilf inches; magnifying powers of eye-pieces, upto 1,200. (c') One, made by Fraueniiofer ; aperture of objective, 6
inches; magnifying powers, up to 000.
(d) Spectroscopes: One small star spectroscope; one Zoellner’s solarspectroscope.
{<j) Cloclcs: Two mean time; makers, Utzschneider, at Munieb; Vo-rauer, at Vienna; several sidereal; makers, Molyneux (London );Aucii (Gotha); Graham (London ); and a few, more or less accurate.
(h) Chronometers : Mean time; maker, Arnold; sidereal, makers,Kessels, Molyneux.
(i) Miscellaneous: An equatorial with adaptation for various latitudes,the 6-inch objective by Steinheil, the mounting by Schaffler. Tworefractors of 4-inch aperture; one of them not equatorially mounted.One equatorial of 3-inch aperture, adapted for various latitudes, object-ives by Fraueniiofer. One equatorial of 3-inch aperture, by Dol-lond. One dialitic equatorial of Plossel, of 5 inches. One comet-seeker, of 6-inch aperture and 4 feet focal length, by Merz; mountedequatorially on the principle of Villareau, by Suiineider. One