First Radar Echos From The Moon

First Radar Echos From The Moon

<< >>
Usage conditions apply
Downloads
Description
Photograph representing the first radar echoes received from the moon using the Naval Research Laboratory 50-foot radio telescope at wavelengths as short as 10 centimeters and pulse lengths as short as 1/2,000,000th of a second. This work showed that the distance from the earth to the moon is 384,400.2 plus or minus 1.1 kilometers.
Location
Currently not on view
Object Name
photograph
Measurements
overall: 12 in x 9 1/2 in; 30.48 cm x 24.13 cm
ID Number
PH.325758
catalog number
325758
accession number
257196
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Comments

Add a comment about this object