Artwork of the Einstein space X-ray telescope

Artwork of the Einstein space X-ray telescope

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Caption: Einstein Observatory. Artist's impression of the Einstein X-ray observatory in orbit. The spacecraft is at upper right, with a cut-away view showing the position of its lens (blue barrel) and its instruments (orange and green boxes). Below is a diagram of the grazing incidence lens used by the Einstein Observatory. The X-rays strike the inner surface of nested tapering metal rings at a very shallow angle, and so are gently reflected toward the focus. This design was the basis for the lenses used on subsequent orbiting X-ray telescopes. Einstein was launched on 13 November 1978, and was operational until April 1981.

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Keywords: astronomical satellite, astronomy, astrophysics, einstein observatory satellite, grazing incidence, grazing incidence telescope, heao-2 satellite, telescope, x-ray, x-ray telescope, xray

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