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Table 1

Physical and orbital properties of celestial bodies.

Sun 1.989 × 1030 6.955 × 105 617.70
Earth 5.972 × 1024 6.378 × 103 11.180
Moon 7.347 × 1022 1.737 × 103 2.3416

Notes. M, R, and vesc denote mass, radius, and escape velocity.

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