Browse Items (54 total)

Unknown, 12-inch and 18-inch telescopes on a single mount, 1894, 1894

Interior of dome with 12-inch and 18-inch telescopes on a single mount, designed by Alvan Clark.

Unknown, 18-inch Telescope Dome, 1894 ca.

Percival Lowell used the 18-inch Brashear refractor, lent by the Allegheny Observatory, for observing Mars. Ed Whipple is pictured in the doorway of…

Unknown, 18-inch telescope dome, 1894

18-inch telescope dome, 1894

Unknown, 18-inch telescope dome, 1894

18-inch telescope dome, 1894

Unknown, 18-inch telescope dome, 1894

18-inch telescope dome, 1894

Unknown, 24-inch telescope dome in Tacubaya, Mexico, 1896

Three men standing in front of the Clark Telescope and canvas-covered dome in Tacubaya, Mexico. The Clark telescope was moved out of Flagstaff to…

Slipher, E.C., 42-inch Lampland Telescope, 1909 ca.

The 42-inch Lampland telescope and its dome.

Slipher, E.C., 42-inch Telescope, 1909 ca.

The 42-inch Lampland Telescope. The metal frame of the telescope now sits centrally on Lowell Observatory's campus near the Steele Visitor Center.

Slipher, E.C., 42-inch Telescope Dome, 1909 ca.

The dome of the 42-inch Lampland telescope as seen through trees on Lowell Observatory's campus. Photographed by E.C. Slipher around 1909, the…

Alvan Clark and Sons, Blueprint of 40-inch Telescope, 1909 ca.

The blueprint for the 40-inch reflector telescope by the Alvan Clark and Sons Corporation. The original lens was ordered at 42 inches but the…