sqrt((sunmass G)/gravity) = 3.68e+09 m
Build a solid Dyson sphere 5.29 solar radii from the center of the sun, i.e., 4.29 solar radii above its surface, then the gravity on the outer surface of the Dyson sphere would be earth's gravity.
0.0246 astronomical units from center.
You could also do this with other central objects: large planets, white dwarfs, neutron stars, black holes. Perhaps they are slightly more realistic because less radiation.
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