Question

NO LINKS YOU WILL GET REPORTED

What is the sidereal period used in Kepler's third law?
A.
the time taken by the planet for one rotation around its axis
B.
the time it takes for a planet to complete one orbit with respect to the background of fixed stars
C.
the orbital period of a planet as it revolves around the Sun as observed from Earth
D.
the time taken by the planet to transition from day to night
E.
the time taken by the planet to travel from the aphelion to the perihelion

Answer 1

i think its C

Step-by-step explanation:

Answer 2

His law explains/shows that the average distance of a planet from the Sun cubed is directly proportional to the orbital period squared.

Step-by-step explanation:

the square of the orbital period of a planet is proportional to the cube of the semi-major axis (size) of its orbit