Flagstaff in Coconino County, Arizona — The American Mountains (Southwest)
Henry Lee Giclas
December 10, 1910 - April 2, 2007
Photographed By Cosmos Mariner, May 31, 2015
1. Henry Lee Giclas Marker
Another life-long employee of Lowell Observatory, Henry is best remembered for his Proper Motion Study of 1971, which entailed repeating the Pluto search plates after 25 years to determine whatever changes had taken place in the background of stars. Henry served as Lowell’s Secretary Treasurer for most of his years on Mars Hill.
Henry’s father Eli also worked for Percival Lowell, installing in 1910 the 42” reflector now on display near Steele Visitor Center.
Topics. This historical marker is listed in these topic lists: Air & Space • Exploration • Science & Medicine. A significant historical year for this entry is 1971.
Location. 35° 12.2′ N, 111° 39.912′ 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 along the Pluto Walk on the Lowell Observatory campus. 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 other markers are within walking distance of this marker. The Lawrence Lowell Telescope (about 300 feet away, measured in a direct line); 42-Inch Reflecting Telescope (about 400 feet away); Clark Dome Weather Station (about 400 feet away); Lowell Observatory (about 500 feet away); Flagstaff Flag - Raising
this page online
Related markers. Click here for a list of markers that are related to this marker. Lowell Observatory
Also see . . . Henry L. Giclas. Wikipedia entry:
Henry Giclas is credited by the Minor Planet Center with the discovery of 17 numbered minor planets between 1943 and 1978, including 2201 Oljato – tentatively identified as the parent body of the "Chi Orionids" meteor shower – and 2061 Anza, two near-Earth asteroids of the Apollo and Amor group, respectively. He also discovered 84P/Giclas in 1978, a periodic comet of the Jupiter family. (Submitted on May 8, 2020, by Cosmos Mariner of Cape Canaveral, Florida.)
via Wikipedia, unknown
2. Henry Lee Giclas
Photographed By Cosmos Mariner, May 31, 2015
3. Henry Lee Giclas Statue & Marker
Credits. This page was last revised on April 22, 2022. It was originally submitted on May 6, 2020, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 173 times since then and 15 times this year. Photos: 1. submitted on May 7, 2020, by Cosmos Mariner of Cape Canaveral, Florida. 2. submitted on April 22, 2022, by Larry Gertner of New York, New York. 3. submitted on May 8, 2020, by Cosmos Mariner of Cape Canaveral, Florida.
