
Solar Corona 1893 April 16
1893
1893
1871
1885
1875
1898
1916-05
1916; 1929
1936
1936
1872
1860-1868
1870
1893
1883
1878
1872
1916
1916
1936
1886
1889
1870-1872
1872
1928
1936
1908
1900
1927
1929
1927
1936
1898
1926
1895
1895
1895
1872