Capodimonte Observatory, Naples, Italy — 11 May 1845
Black objects
Astronomer Schumacher wrote to Gauss on 18 September 1845: “Erman sends me a report of Capocci about bodies which he has seen pass in front of the sun on 11 to 13 May.” Ernesto Capocci (1798-1864) was an Italian astronomer. Heinrich Christian Schumacher (1780-1850) was the founder of Astronomische Nachtrichten.
Source: Correspondence between mathematician Carl Friedrich Gauss and astronomer Schumacher. Briefwechselzwischen C.F. Gauss und H.C. Schumacher, edited by C.A.F. Peters, vol. 5 (Altona, 1863), 46-47; Report of the nineteenth meeting of the British Association for the Advancement of Science (year 1849) (London, 1850): 46. 431. Case: W384