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Logarythmic
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If I have the eccentricity and the perihelion of an orbit given, how can I compute the aphelion?
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The formula for computing aphelion from eccentricity and perihelion is:
Aphelion = Perihelion / (1 - Eccentricity)
Eccentricity refers to the measure of the elliptical shape of an orbit. It is the ratio of the distance between the foci of an ellipse to the length of the major axis. Perihelion, on the other hand, is the point in an orbit where the object is closest to the sun.
Computing aphelion from eccentricity and perihelion can help us understand the shape and size of an orbit, which gives us insight into the dynamics of the solar system and the motion of celestial bodies.
Eccentricity is a unitless quantity, as it is a ratio. Perihelion is typically measured in astronomical units (AU), with 1 AU being the average distance between the Earth and the Sun.
Yes, aphelion can be greater than perihelion. In fact, this is the case for most orbits in the solar system, including Earth's orbit around the Sun.