National Radio Astronomy Observatory

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Stock #: 158686
Type: Postcard
Era: Chrome
City: Green Bank
State: West Virginia (WV)
County: Pocahontas
Publisher: Valley Views
Size: 3.5" x 5.5" (9 x 14 cm)

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Additional Details:
This unique instrument using three 85-foot radio telescopes is called an interferometer. By moving the two 85-foot telescopes in the foreground to different observing stations along a 5000 foot roadway with respect to a fixed, third 85-foot telescope, it is possible to simulate and antenna several thousands of feet in diameter.

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