I am wondering how space geographers would measure curvature of space around a large isolated star. i am thinking of the set up where there are two nearby spheres surrounding the star whose circumferences are already known. The remaining step is to measure the length of a radial geodesic segment connecting the two spheres. This it seems would give measurements in geodesic polar coordinates and would allow the computation of curvature using the usual formulas.(adsbygoogle = window.adsbygoogle || []).push({});

How then does one find a geodesic ray and the measure its length?

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# Measuring curvature of space around a star

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