734 EEPORTS OF ASTRONOMICAL OBSERVATORIES. 



Whalley, England. 

 See Stonylmrst. 



WiEN, near, (Wahking,) Austria. 

 K. K. Universitats Sternwarte, 



Longitude from Greenwich, l'^ 5™ 21^.49 E. 

 Latitude, 48° 13' 55" A 1^. 

 Directors : M.Kel,T,, 1756; 



F. VON P. Friesnecker, 1792; 

 J. S. BtTRG, 1817; 

 J. J. VON LiTTROW, 1819; 

 K. L. VON LiTTROW, 1841 ; 

 Prof. Dr. Edmund Weiss. 

 Assistants : 1. Johann Palisa. 



2. Dr. Johann Holetschek. 

 Aids : 1. Karl Zelbr ; 



2. Dr. J. V. Hepperger. 

 The first observations made in Vienna were undertaken in 1745 by 

 the Jesuits, J. FRANgois and J. Liesgano. A permanent Observatory 

 was founded in 1756. It was rebuilt from 1820 to 1826, and located 

 among the University buildings. In 1874 a new establishment on a 

 greatly enlarged scale was erected at WJihring, outside the town, and 

 completed in 1879. An equatorial of Grubb's, with a focus of 32 feet 

 (9™.7) and an aperture of 27 inches (0'^.70) is to occupy the great dome. 

 Instruhents : 

 {a) Meridian circle: made by Christian Starke, at Vienna, (after 

 the example of the meridian circles of Eeichenbach) ; diameter of cir- 

 cles, 36 inches ; divided to 3' ; read by four microscopes to single seconds ; 

 ai)erture of objective, 48 inches ; magnifying power ordinarily employed 

 120 diameters. 



(&') Prime vertical: maker. Christian Starke; aperture, 50 inches; 

 magnifying power, 120 diameters. 



(c) Equatorial instruments: one, made by Alvan Clark & Sons; 

 aperture of objective, llf inches; magnifying jiowers of ej^e-pieces, up 

 to 1200. {&) One, made by Frauenhofer; aperture of objective, 6 

 inches; magnifying powers, up to 600. 



[d) Spectroscopes: one small star spectroscope; one Zoellner's solar 

 spectroscope. 



{g) ClocTcs : two mean time ; makers, TJlzschneider, at Munich ; Yo- 

 rauer, at Vienna; several sidereal; makers, Molyneux (London); 

 AuCH (Gotha); Graham (London); and a few, more or less accurate. 



{h) Chronometers: mean time; maker, Arnold; sidereal, makers, 

 Kessels, Molyneux. 



(*) Miscellaneous : An equatorial with adaptation for various latitudes, 

 the 6-inch objective by Steinheil, the mounting by Schaffler. Two 



