Question

how are three celestial bodies placed with respect to each other?​

Answer 1

$\large{\underline{\sf{\red{Question:-}}}}$

how are three celestial bodies placed with respect to each other?

$\large{\underline{\sf{\orange{Solution:-}}}}$

Planets, Comets, Asteroids are three celestial bodies placed with respect to each other.

Additional information:-

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A celestial body can be defined as any natural body outside of the Earth's atmosphere. Celestial bodies or heavenly bodies are objects in space such as the sun, moon, planets and stars.

Answer 2

Answer:

When two celestial bodies of comparable mass interact gravitationally, both orbit about a fixed point (the centre of mass of the two bodies). This point lies between the bodies on the line joining them at a position such that the products of the distance to each body with the mass of each body are equal. Thus, Earth and the Moon move in complementary orbits about their common centre of mass. The motion of Earth has two observable consequences. First, the direction of the Sun as seen from Earth relative to the very distant stars varies each month by about 12 arc seconds in addition to the Sun’s annual motion. Second, the line-of-sight velocity from Earth to a freely moving spacecraft varies each month by 2.04 metres per second, according to very accurate data obtained from radio tracking. From these results the Moon is found to have a mass 1/81 times that of Earth. With slight modifications Kepler’s laws remain valid for systems of two comparable masses; the foci of the elliptical orbits are the two-body centre-of-mass positions, and, putting M1 + M2 instead of MS in the expression of Kepler’s third law, equation (6), the third law reads: Equation.