WebDec 20, 2024 · The ecliptic plane is defined as the plane containing the Earth's orbit, so the Earth's inclination is 0. Orbital Eccentricity - This is a measure of how far a planet's … WebOrbital Eccentricity The orbital eccentricity (or eccentricity) is a measure of how much an elliptical orbit is ‘squashed’. It is one of the orbital elements that must be specified in order to completely define the shape and orientation of an elliptical orbit. The equation of an ellipse in polar coordinates is:
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The orbit of the Moon is a nearly circular ellipse about the Earth (the semimajor and semiminor axes are 384,400 km and 383,800 km, respectively: a difference of only 0.16%). The equation of the ellipse yields an eccentricity of 0.0549 and perigee and apogee distances of 362,600 km and 405,400 km respectively (a … See more The Moon orbits Earth in the prograde direction and completes one revolution relative to the Vernal Equinox and the stars in about 27.32 days (a tropical month and sidereal month) and one revolution relative to the See more About 1000 BC, the Babylonians were the first human civilization known to have kept a consistent record of lunar observations. Clay tablets from … See more The gravitational attraction that the Moon exerts on Earth is the cause of tides in both the ocean and the solid Earth; the Sun has a smaller tidal … See more When viewed from the north celestial pole (i.e., from the approximate direction of the star Polaris) the Moon orbits Earth anticlockwise and … See more The properties of the orbit described in this section are approximations. The Moon's orbit around Earth has many variations (perturbations) … See more There are several different periods associated with the lunar orbit. The sidereal month is the time it takes to make one complete orbit around Earth with respect to the fixed … See more The Moon is in synchronous rotation, meaning that it keeps the same face toward Earth at all times. This synchronous rotation is only true on average because the Moon's orbit has a definite eccentricity. As a result, the angular velocity of … See more WebAug 20, 2024 · The Moon's orbit around the Earth-Moon barycentre has an eccentricity of ~0.0549 and it's quite dynamic, with relatively short apsidal and nodal precession cycles, primarily due to perturbation by the Sun. Alternatively, the Moon's orbit around the Sun is strongly perturbed by the Earth. ;) shelving 4shelves
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WebMar 22, 2024 · Io is only slightly larger than Earth’s moon and about one-quarter the diameter of Earth itself. 2 Out There Io orbits the planet Jupiter, which itself orbits the Sun at a distance of 484 million miles (778 million kilometers). 3 Gravitationally Tamed WebThe Moon revolves around Earth in an elliptical orbit with a mean eccentricity of 0.0549. Thus, the Moon's center-to-center distance from Earth varies with mean values of 363,396 km at perigee to 405,504 km … shelving 29 high