734 REPORTS OF ASTRONOMICAL OBSERVATORIES. 



Whalley, England. 

 See Stonylmrst. 



WiEN, near, (Wahring,) Austria. 



K. K. Universitclts Sternwarte. 



Longitude from Greenwich, 1^' 5^ 21^49 E. 

 Latitude, 48° 13' 55".4 ^. 

 Directors : M. Kell, 1756 ; 



F. VON P. Friesnecker, 1792; 



J. S. BtTRG, 1817; 



J. J. VON LiTTROW, 1810; 



K. L. VON LiTTROW, 1841 ; 



Prof. Dr. Edmund Weiss. , 



Assistants : 1. Johann Paxisa. 



2. Dr. JOHANN HOLETSCHEK. 



Aids: 1. KarlZelbr; 



2. Dr. J. V. Hepperger. 



The first observations made in Vienna were undertaken in 1745 by 

 the Jesuits, J. Franqois and J. Liesgang. 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 Wahring, 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. 



INSTRUIMENTS: 



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

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

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

 aperture of objective, 48 inches; magnifying i^ower ordinarily employed 

 120 diameters. 



(l)') 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 powers of ej'e-pieces, up 

 to 1200. {&) One, made by Frauenhofer; aperture of objective, <3 

 inches ; magnifying powers, up to 600. 



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

 spectroscope. 



{(j) Clocks : two mean time ; makers, Ulzschneider, at Munich ; Vo- 

 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. 



{i) Miscellaneous : An equatorial with adaptation for various latitudes, 

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



