
Refracting telescope of 5.9-inch aperture, mounted on English type equatorial mounting with off-set lead counterweight
1829
1829
1705-1737
1835
1835
1828
1870-1877
1823
1825
1830
4000-2001 BCE
1829
1930 (replica); 1834 (original)
1829
1829
1837
1838
1837
1823-1825
1826
1826
1832
1772 (original); 1919 (model)
1610; 1923
1642-1649 (original); 1883 (model)
1830
1668; 1924
1936
1830
2050-1750 BCE
1990-95
1829
1798 (original); 1977 (model)
300 BCE; 1905-1915
c.1825
1845-1964
1823-1829
1837-10
1831
1826
1825-1835
1828
1837
1835
1831
1833
1834
1837
1823-1830
1823-1837
1825-1830