Letter to the Hon. R.W. Thompson, Secretary of the Navy, announcing the discovery of satellites of Mars
By: [John Rodgers]
Contributors: Thompson, R. W.; Hall, Asaph, 1829-1907; United States Naval Observatory
Publisher: U.S. Naval Observatory
Published: 1877
Place of publication: Washington
Language: eng
Subjects: Satellites
Other titles: Satellites of Mars
Notes: Caption title.

"Official announcement to the Secretary of the Navy of Professor Asaph Hall's discovery of the satellites of Mars on August 11, 1877."