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Two-Image Stellar Lens Configuration Published

Einstein's lensing note described how imperfect alignment can produce two apparent images of a background star because its light reaches the observer along different curved paths.

Albert Einstein in a 1912 portrait
Albert Einstein, 1912. Photograph by J. F. Langhans — public domain. Wikimedia Commons source.
Year 1936PrincetonAstronomy

Two-Image Stellar Lens Configuration Published

1936 · Princeton · United States of America · Astronomy

Einstein's lensing note described how imperfect alignment can produce two apparent images of a background star because its light reaches the observer along different curved paths.

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