# mean distance

NOUN
1. the arithmetic mean of the maximum and minimum distances of a celestial body (satellite or secondary star) from its primary
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## How To Use mean distance In A Sentence

• In his own words, “The proportion existing between the periodic times of any two planets is exactly the sesquiplicate proportion of the mean distances of the orbits,” or as generally given, “the squares of the periodic times are proportional to the cubes of the mean distances.” Kepler
• At the perihelion this excess of tangential velocity creates a resistance, which urges the planet towards the sun, and at the aphelion, the deficiency of tangential velocity urges the planet from the sun, -- the maximum effect being at the apsides of the orbit, and null at the mean distances. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence
• When the Earth is at its mean distance from the Sun, the solar orb has an apparent angular diameter of 0.533 degrees.
• Encke found on its periodical return that its mean distance was gradually getting less, and in order to account for this, he supposed that it was due to the existence of a resisting medium which enveloped the sun, and extended some distance into space. Aether and Gravitation
• In other positions it is, therefore, as the cosines of the eccentric anomaly, as in the former case; but in this last case it is an addititious force at the perihelion, and an ablatitious force at the aphelion, whereas the first disturbing force was an ablatitious force at the perihelion, and an addititious force at the aphelion; therefore, as we must suppose the planet to be in equilibrium at its mean distance, it is in equilibrium at all distances. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence
• So what I did was I plotted this data, the centripetal acceleration versus the mean distance to the sun and I did that on log paper.
• Suppose that some small fraction of teasel seeds land in water, and that when they do they are dispersed according to a Laplace distribution with some larger mean distance.
• When the mean distance between water droplets or crystals is comparable to the wavelength of the electromagnetic signals, severe attenuation can occur.
• Over the time scale of human history, even the gradual increase in its mean distance from the Earth is not a significant effect compared to the monthly in-and-out movement varying its angular size.
• So what I did was I plotted this data, the centripetal acceleration versus the mean distance to the sun and I did that on log paper.
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