Suggests using a new version of a man-made circumsolar planet for experimental verification of general relativity by observing its perihelion shift, first suggested by Gilvarry. The body should have a small projected area relative to the sun, and a large radiating area away from the sun, as one method to alleviate the critical temperature problem. This body would also permit other repeatedly proposed sensitive tests of the possible effects of solar oblateness, and a set of experiments to measure and/or compensate for external forces such as might be encountered in the extended solar atmosphere.
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