Flagstaff in Coconino County, Arizona — The American Mountains (Southwest)
42-Inch Reflecting Telescope
From 1909 until 1950, staff astronomer Dr. C. O. Lampland was the principal observer with this telescope. During these years he made over 10,000 photographs of galaxies, diffuse nebulae, star clusters, and star fields. These images were used for studying any changes and motions within these objects and throughout the star fields. In 1922 Dr. Lampland and Dr. W. W. Coblentz, of the National Bureau of Standards, used this telescope
Beginning in 1948, part of the observing time was allotted to the solar variations program, an investigation to determine the constancy of the light from solar-type stars. In 1969, a new 42-inch mirror made of low expansion glass was completed, and the decision was made to use a modern telescope mounting. The new telescope was placed at Lowell Observatory's dark sky site on Anderson Mesa 12 miles (19 km) southeast of Flagstaff.
This old telescope, although maintained in place in its dome, was not used much after 1970. In November 1999 it was removed from its original dome, and it was placed on display here in May 2001.
Topics. This historical marker is listed in these topic lists: Air & Space • Science & Medicine. A significant historical year for this entry is 1909.
Location. 35° 12.139′ N, 111° 39.887′ W. Marker is in Flagstaff, Arizona, in Coconino County. Marker can be reached from West Mars Hill Road 0.6 miles west of West Santa Fe Avenue. Marker is located on the Lowell Observatory campus. It is along the walkway just north of the Steele Visitor Center. Touch for map. Marker is at or near this postal address: 1400 West Mars Hill Road, Flagstaff AZ 86001, United States of America. Touch for directions.
Other nearby markers. At least 8 Clark Dome Weather Station (within shouting distance of this marker); Lowell Observatory (within shouting distance of this marker); Henry Lee Giclas (about 400 feet away, measured in a direct line); The Lawrence Lowell Telescope (about 700 feet away); Methodist Episcopal Church (approx. 0.7 miles away); The Old Tractor (approx. 0.7 miles away); Flagstaff Flag - Raising (approx. 0.7 miles away); The Navajo Code Talkers (approx. ¾ mile away). Touch for a list and map of all markers in Flagstaff.
Related markers. Click here for a list of markers that are related to this marker. Lowell Observatory
Credits. This page was last revised on May 8, 2020. It was originally submitted on May 6, 2020, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 65 times since then and 7 times this year. Photos: 1. submitted on May 7, 2020, by Cosmos Mariner of Cape Canaveral, Florida. 2, 3, 4, 5, 6, 7. submitted on May 8, 2020, by Cosmos Mariner of Cape Canaveral, Florida.