Browse Items (41 total)

Lundin, C.A. Robert, Discovery of Pluto Letter from C.A. Robert Lundin to Carl Lampland, April 14, 1930, 1930-04-14

C.A. Robert Lundin now associated with Roland W. Sellow who designs and builds mountings, domes, rising floors, observatory buildings; Discovery of…

Tags: Pluto

Lampland, Carl O., Discovery of Pluto Letter from Carl Lampland to C.A. Robert Lundin (The Alvan Clark & Sons Corp.), March 25, 1930, 1930-03-25

C.A. Robert Lundin's part in the discovery of Pluto

Tags: Pluto

Boothroyd, Samuel L., Discovery of Pluto Letter from Samuel L. Boothroyd (Cornell University) to Carl Lampland, March 19, 1930, 1930-03-19

Congratulations on planet discovery and request for more information thereof for an article in "The Book of Popular Science"

Tags: Pluto

Lampland, Carl O., Discovery of Pluto Letter from Carl Lampland to Philip Fox (Adler Planetarium), March 15, 1930, 1930-03-15

Thanks for the telegram of congratulations on the discovery of TransNeptunian Planet.  "We have a new baby at our house".

Tags: Pluto

Fox, Philip, Discovery of Pluto Telegram from Philip Fox (Adler Planetarium) to Carl Lampland, March 13, 1930, 1930-03-13

Congratulations on the discovery of TransNeptunian Planet

Tags: Pluto

Brouwer, Dirk, Pluto orbit work Letter from Dirk Brouwer (Yale University Observatory) to Carl Lampland, November 10, 1950, 1950-11-10

Suggestion for Carl Lampland to apply to the Office of Naval Research for a small astronomical grant to complete work on orbit of Pluto

Tags: Pluto

Lampland, Carl O., Pluto orbit work Letter from Carl Lampland to C.D. Shane (Lick Observatory), April 3, 1948, 1948-04-03

Evaluation of the observational material on Pluto at Lowell Observatory and elsewhere to determine its exact orbit.

Tags: Pluto

Lampland, Carl O, Credit for the discovery of Pluto The Martian Polar Cap "Carbonic Acid" hypothesis Letter from Carl Lampland to Clyde Tombaugh, November 5, 1932, 1932-11-05

Rock salt crystals for prism purposes; Dry ice, Martian polar caps, carbon dioxide (the 'Carbonic Acid' hypothesis) and Dr. Alter's comments on life…

Tags: Astronomy, Pluto

Lampland, Carl O., Pluto orbit work Letter from Carl Lampland to G.M. Clemence, December 12, 1950, 1950-12-12

Office of Naval Research Grant assistance and recommendation request for a grant to complete work on the orbit of Pluto

Tags: Pluto

Lampland, Carl O., Pluto orbit work Letter from Carl Lampland to G.M. Clemence, December 23, 1948, 1948-12-23

Program for the accurate determination of position of the planet Pluto on the extensive series of photographs made with the 42 inch Lowell reflector…

Tags: Pluto