The Great Nebula in Orion
1883
1883
1876
1909
1883
1883
1876
1883
1883
1909
1909
1883
1883
1883
1883
1883
1883
1910
1931
1921
1899
1899
1899; 1912
1860-1867
1966
1909
1920
1921
1920
1902-1904
1966
1966
1966
1966
1966
1922
1920
1963