Einstein Observatory
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Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories. The observatory was named in honor of Albert Einstein.
[edit] Performance
Launched in 1978, it was several hundred times more sensitive than any previous X-ray mission. Einstein provided X-ray astronomers with the capability to image extended objects, diffuse emission, and to detect faint sources. It had an angular resolution in arcseconds and a field of view of tens of arcminutes.
[edit] External links
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