Browse Items (278 total)
- Collection: Carl O. Lampland
Sort by:
Carl O. Lampland's Obituary, by John C. Duncan in Publications of the Astronomical Society of the Pacific, 1952
Carl O. Lampland's Obituary
Tags: Lowell
Franklin D. Roosevelt
Acting Secretary of the Navy Franklin D. Roosevelt's reply to a request by Senator Ashurst at Carl Lampland's behest for a copy of the American Practical Navigator, March 19, 1919
Acting Secretary of the Navy Franklin D. Roosevelt's reply to a request by Senator Ashurst at COL's behest for a copy of the American Practical Navigator
Tags: Lowell
Blink Comparator
Letter from Carl Lampland to Carl Zeiss , November 17, 1919
Order for a Stereo-Comparator with the Blink-Mikroskop in the largest size
Tags: Pluto
Blink Comparator
Letter from Carl Lampland to F. Y. Ferner (National Bureau of Standards), September 21, 1921
Inquiry regarding description and manufacturer of the Blink-comparator (Carl Zeiss of Jena, Germany - 'Stereo-Komparator')
Tags: Pluto
Blink Comparator
Letter from Carl Lampland to Edward Fath (Goodsell Observatory), February 12, 1929
New pieces of equipment at Lowell Observatory: Photographic objective (Cooke Astro type of lens) and the Blink Comparator
Tags: Pluto
Blink Comparator
Letter from Carl Lampland to Phillip Fox (Adler Planetarium), December 4, 1929
The large Zeiss comparator being kept busy all the time on the examination of star fields taken with the new 13-inch photographic telescope
Tags: Pluto
Blink Comparator
Letter from Carl Lampland to Carl Zeiss , April 4, 1932
Zeiss Blink Comparator used at Lowell in the discovery of Pluto in 1930; Request for complete descriptive literature of the instrument in its present form; Microscope objectives (apochromatic lenses) with corrections for colors throughout the…
Tags: Pluto
Blink Comparator
Lowell Observatory Library
Letter from Carl Lampland to Clyde Tombaugh, August 23, 1932
Visit by the Royal Astronomical Society group to Lowell. Group was very disappointed in not meeting Clyde Tombaugh but did see the pair of discovery plates displayed in the Blink Comparator.
Latest activities in the Lowell Observatory Library to…
Latest activities in the Lowell Observatory Library to…
Blink Comparator
"Want to discover Planet X? You'll need these three tools"
Article in Astronomy Magazine by Kevin Schindler, May 20, 2015
In 1911 Lampland suggests the purchase of a Zeiss Blink Comparator to aid in the search for Planet X.
Lampland modifies the apparatus to accommodate larger photographic plates.
Lampland modifies the apparatus to accommodate larger photographic plates.
Tags: Pluto
Featured Item
Arizona Daily Sun newspaper clipping, 1960

Photo in the Arizona Daily Sun of Al Whitley from Mademoiselle Magazine presenting the Mademoiselle Merit Award to Elizabeth Roemer