Asaph Hall

Asaph Hall, discoverer of the two moons of Mars, Phobos and Deimos, was fully supported in his search by his wife Chloe Angeline Stickney Hall.

Weekend SkyWatcher's Forecast – January 8-10, 2010 | Universe Today 2010

Aug. 18, 1877:Astronomer Asaph Hall, Sr. wraps up a nice little week at the U.S. Naval Observatory in Washington, D.C., when he discovers the Martian moon, Phobos, orbiting less than 4,000 miles above the planet's surface.

A Week Later He Couldn't Find His Keys 2007

Asaph Hall of the U.S. Naval Observatory discovered two small moons of Mars and promptly named them Phobos and Deimos—fear and terror, an appropriate entourage for the planet of war.

The Case for Mars Robert Zubrin 1996

Asaph Hall of the U.S. Naval Observatory discovered two small moons of Mars and promptly named them Phobos and Deimos—fear and terror, an appropriate entourage for the planet of war.

The Case for Mars Robert Zubrin 1996

But a greater feat than this was accomplished by the same instrument -- the discovery of the two little moons of Mars, by Prof. Asaph Hall, in 1877.

Scientific American Supplement, No. 288, July 9, 1881 Various

Professor Asaph Hall, of Washington Observatory, took up the search, using a splendid refracting telescope having an object-glass 26 inches in diameter.

To Mars via The Moon An Astronomical Story Mark Wicks

The Washington Observatory had acquired the fine 26-inch refractor, and Asaph Hall searched for satellites, concealing the planet's disc to avoid the glare.

History of Astronomy George Forbes 1892

American astronomer, Asaph Hall, discovered the planet's two minute satellites, and again during the opposition of 1879, the Italian observer caught sight of an astonishing network of narrow dark lines intersecting the so-called continental regions of the planet and crossing one another in every direction.

Other Worlds Their Nature, Possibilities and Habitability in the Light of the Latest Discoveries 1890

This discovery was made by Professor Asaph Hall, the distinguished astronomer at the observatory of Washington.

The Story of the Heavens 1876

Professor Asaph Hall, of Washington, who has obtained a result considerably less than had been previously supposed; on the other hand,

The Story of the Heavens 1876