The asteroid Icarus has a perihelion distance of 0.19 AU, an orbital eccentricity of 0.83 and semi major axis of 1.12 AU. What is its aphelion distance from the Sun?
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- The fictional asteroid Lilliput orbits around the Sun one time every 3.605 Earth years. What is the average distance for Lilliput away from the Sun in astronomical units (AU)? One astronomical unit is equal to the average distance the Earth is away from the Sun, 1.496x1011m. The mass of the Sun is 1.989x1030kg.The region between Mars and Jupiter, where asteroids lie, extends from 1.52-5.20 AU from the Sun. To find the distance between Mars and this asteroid as a fraction of the total distance between Mars and Jupiter, we simply take their ratios: dma f = dmj f =A comet has a period of 72.3 years and moves in an elliptical orbit in which its perihelion (closest approach to the Sun) is 0.540 AU. Find the semimajor axis of the comet and an estimate of the comet's maximum distance from the Sun, both in astronomical units. HINT (a) the semimajor axis of the comet (in AU) AU (b) an estimate of the comet's maximum distance (in AU) from the Sun AU
- An asteroid has a perihelion distance of 2.0 AU, an aphelion distance of 4.0 AU, and an orbital semimajor axis of 3.0 A.U. Calculate its eccentricity.Calculate the period T of a planet whose orbit has a semi major axis of 6.1 AUIs it possible to put a satellite in a “geostationary” orbit around Venus? You can assume that Venus is spherical, that its sidereal day is 5832 hours, its mass is 4.867×1023 kg and that the radius of its Hill sphere is 1.0042x106 km (Hill sphere of a planet is the region in which it dominates the attraction of satellites, a satellite has to be inside that sphere to remain around the planet)
- Let's define the gravitational pull between Earth and the Sun as 1 Earth-pull. What is the pull that Jupiter has on the Sun in Earth-pulls? Jupiter has a mass of 318 Earth masses. Jupiter is located at 5.20 AU from the Sun.In the Tsiolkovsky's equation, the parameter “delta v”, could I use “delta v”as “v” in the equation v=sqrt(GM/r) or are they different. For example if a satellite is in a geosynchronous orbit with a “delta v” of 2km/s, could I use the 2km/s to calculate the radius of orbit? ThanksAnother comet has an orbit about the sun whose semi-major axis is 12 AU, with an eccentricity of 0.92. What is the closest that this comet gets to the Sun during the course of its orbit? Answer in AU