A comet has a period of 76.3 years and moves in an ellipticalorbit in which its perihelion (closest approach to the Sun)is 0.610 AU. Find (a) the semimajor axis of the comet and(b) an estimate of the comet’s maximum distance from theSun, both in astronomical units.

A science fiction author is writing a book where an artificial planet is constructed in our Solar System at a distance that is 3 times farther from the Sun (s - 3.00 AU) than Earth is. Knowing that Earth is 1.00 AU from the Sun and has a period of 1.00 years, how many years would it take for hypothetical Planet Pterodactyl to make one orbit around the Sun?

A Mars observing satellite is orbiting on a circular orbit at an altitude of 1000 km above Mars’s equator. Find satellite’s acceleration and velocity as seen from a deep space communications station located on Earth’s equator, when they are on a direct line of sight (see the Fig. below). Assume for simplicity that planetary orbits and their equatorial planes are all in the plane of ecliptic (that is all, motion is in a 2D plane). Earth radius is 6300 km, Mars radius 3400 km, Mars mass 6.4x1023 kg. Assume that all circular motions are counter clockwise (i.e., orbital motions of Earth and Mars, Earth spin, and satellite orbital motion).

When an object orbiting the Sun is as its closest distance to the Sun, the objects is at perihelion; when it is at its farthest distance from the Sun, the object is at aphelion. Comet Kowal is a periodic comet that orbits the Sun.Its perihelion and aphelion distances are respectively, 2.07 AU and 4.11 Au. Calculate Kowals period of revolution around the Sun.

Taking the age of Earth to be about 4 ✕ 109 years and assuming its orbital radius of 1.5 ✕ 1011 m has not changed and is circular, calculate the approximate total distance Earth has traveled since its birth (in a frame of reference stationary with respect to the Sun).

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) One of the moors of Jupiter, named an orbital radius of 10 4.22 * 10 ^ 8 a period of 1.77 days. Assuming the orbitis circular, calculate the inass of Jupiter. (b) largest moon of Jupiter, named Ganymede, has an orbital radius of 1.07 * 10 ^ 9 m a period of 7.16 daysCalculate the mass of Jupiter from this data ) your results to parts (b) consistent ? Yes No Explain

When a falling meteoroid is at a distance above the Earth's surface of 2.4 times the Earth's radius, what is its acceleration due to the Earth's gravitation? (Units: m/s2)

Calculate the period of a satellite orbiting a planet with the mass 8.7 x 1022 kg given the height of the satellite's orbit is 300 km and the radius of the planet is 2000 km. Provide your answer in Sl units.

Calculate the period of a satellite orbiting the Moon, 99 kmkm above the Moon's surface. Ignore effects of the Earth. The radius of the Moon is 1740 kmkm.