ASTRONOMICAL OBSERVATORIES.

465

Prague. Austria .

I. K. K. Universitdts Stermvarte.

Longitude from Greenwich , 57 m 41.4 s E.

Latitude, 50° 5' 18.8" 2L

Authority for latitude and longitude, Al. David and J. Bohm.Directors: J. Sterling, 1751.

A. Strandt, 1781.

A. David, 1799.

A. Bittner, 1836.

K. Kreil, 1845.

0. Jelineic, 1851.

J. G. Boiim, 1855.

Dr. G. Hornstein, 1868.

Prof. Ladislans Weinek,-.

Tycho de Brahe had some astronomical instruments temporarilymounted at Prague (1600-1601). The observatory, properly so called,was not erected until 1751, in the Altstadt quarter, at the CollegiumClementinum, under the direction of the Jesuits .

Instruments :

(a) Meridian circle: One; maker, Chr. Starke (mechanical workshopof the I. R. Polytechnic Institute in Vienna ); diameter of circle, 36inches; divided to 3'; read by 4 nonius to 2"; aperture of objective, 4inches.

(b ) Meridian transit instruments : Maker, Oiir. Starke; aperture, 4inches; (&') maker, Schrotter; aperature of objective, 3 inches.

(c) Equatorial instruments: Makers, O. A. Steiniieil’s Sons, inMunich ; aperture of objective, 6 inches; magnifying powers of eye-pieces, 56, 84, 252, 420, 672. ( c ') Makers, Utzsciineider & Fraun-hofer, Munich ; aperture of objective, 3 inches.

(d) Spectroscopes: One; G. & S. Merz, Munich ; one small star spec-troscope; makers, G. & S. Merz, Munich .

(/) Chronograph: One; Dr. M . IIiPPS, Heuchatel, maker.

(fj) Clochs: Meantime; makers, Lepaute, Paris ; sidereal; makers,J. Bozek, Prague .

(h) Chronometer: Mean time ; maker, Barraud.

(i) Miscellaneous: One sextant; maker, Tycho Brahe ; one octant;maker, Tycho Brahe ; one large (Hohen Kreis), by Troughton, inLondon .

II. Sternewarte des Rerrn A. Safarik.

Longitude from Greenwich , 57 m 47 s E.

Latitude, 50° 4' 25" N..

Authority for longitude and latitude: A. Lancaster, Liste Gendraledes Observatoires et Astronomes, 1887.

Director : A. Safarik.

H. Miss. 170-30