Astronomy

1. At opposition, Nursat(is observed to be in opposition every 374 days.) is observed to subtend an angular radius of 7.1523 arcseconds. Use this and the conversion factors in our Table of Constants to find the radius of Nursat in km.

2. Nursat has a moon, Sunaj, which is observed to orbit the planet with period 0.6947 days, grazing the planet with an orbital radius only 2.606 times the radius of the planet itself. Use this information to find the mass of Nursat. Express your answer as a multiple of the mass of Earth

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