If a star is one parsec, or 3.3 light-years, from Earth, it should shift one arcsecond as the Earth moves from one side of its orbit to the other. However, no star is that close and for centuries ...
PREVIOUS attempts to measure the annual parallax of intense radio stars 1,2 have indicated that their distances exceed 1/50 parsec. These results were obtained by using an interferometer arrangement ...
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