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10,a 1021 1023 1025 102' 102B 103' Mass of satellite (grams)

Figure 28. Hypothetical satellites of the Earth.

orbit within the ecosphere of stars less massive than 0.72 solar mass. However, a new limit would be reached when the tides on the planet due to the primary reached a destructive level. If we assume that the destructive tide level is 20 feet, then the new lower limit on stellar mass would be 0.35 solar mass. The dynamic stability of a system near the limit would probably be quite difficult to assess and the evolutionary sequence of events leading up to such a situation would be difficult to reconstruct.

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