Observations Of Double Stars Made At The United States Naval Observatory (1881) : Kessinger Publishing : 9781120331878 : 1120331870 : 15 Oct 2009 : ""Observations of Double Stars Made at the United States Naval Observatory"" is a scientific book written by Asaph Hall and published in 1881. The book is a detailed report of observations made by Hall of double stars at the United States Naval Observatory. The author describes the instruments and methods used to observe the stars, as well as the results obtained. The book is a valuable resource for astronomers and anyone interested in the study of double stars. It contains numerous tables and diagrams, as well as detailed descriptions of the stars observed. The book is written in a scientific style and assumes some prior knowledge of astronomy. Overall, ""Observations of Double Stars Made at the United States Naval Observatory"" is an important contribution to the field of astronomy and a fascinating read for anyone interested in the stars