Question

What is the mass of the Sun, in kilograms, based on the revolution period and distance from Mercury? Express the answer in scientific notation.

Answer 1

Mercury Statistics

Planetary Symbol:		Name in Roman/Greek Mythology:
Diameter:	4,878 km	Rotation Period about Axis:
Mass:	0.33x10^24 kilograms (0.06 x Earth's)	Revolution Period about the Sun:
Density:	5,427 kg/m^3	Tilt of Axis:

m + M = 4 ² / G * (D³ / P² )

0.33 x 10^24 + M = (4 x 3.14^2 / 6.62 x 10^27 ) * (( 5.791x10^7)^3 / 4878^2)

                           = 485.97 x 10^24

Mass of the Sun = ( 485.97 - 0.33 ) x10^24

                        = 485.64 x 10^24 Kgs