467
Imperial Nautical Observatory.
Longitude from Greenwich , 2 1 * 52 m 41.41 s W.
Latitude, 22° 54' 23.7" S.
Directors: A. M. de Mells, 1850.
E. Liais, 1871.
L. Ceuls.
‘ Founded in 1780 ; restored in 1871.
I. Osservatorio astronomico del Colegio Romano.
Longitude from Greenwich , 49 m 55.5 s E.
Latitude, 41° 53' 53.7" N.
G. Calandrelli, 1773.
8. Dumouchel, 1824.
F. de Yico, 1838.
A. Secchi, 1849.
G. S. Ferear, 1878.
P. Tacchini, 1879.
Before the establishment of a regular observatory a succession of as-tronomers, more or less famous, made use of temporary accommodations.In the buildings of the old college Clavias made observations with a ze-nithal sector in 1572, and following years. 8ciieinee collected the mate-rials for his famous Rosa Ursina , the printing of which was completedin 1G30 at the new college, west of the Church of St. Ignatius. There,too, Gottignies and Borgondio made occasional observations. Maireobserved the comet of 1844 at the English college. Boscovicn fixedhimself in the principal hall of the Kireher Museum. Finally, Asclepi organized a permanent establishment in 17G4; and in 1787 a squaretower was built to accommodate the observatory at the eastern angle ofthe college facade on via del Gesii. A now building was put up in 1853,having for substructure the enormous piles which had been intended tosupport the dome of the Church of St. Ignatius.
II. Observatory of the Capitol.
Longitude from Greenwich , 49 m 56.5 s E.
Latitude, 41° 53' 33.5" IST.
Authority for longitude and latitude: A. Lancaster, Liste Gdn^raledes Observatoires et Astronomes, 1887.
Directors: G. Callandrelli, 1824.
A. Conti, 1827.
I. Callandrelli, 1841.