# At what time of the year and under what conditions does the moon have the maximum brightness when observed from Moscow?

At what time of the year and under what conditions does the moon have the maximum brightness when observed from Moscow? Explain the answer. How many times does its brilliance increase relative to that in other seasons in the same phases? The eccentricity of the Earth’s orbit is 0.017, the eccentricity of the Moon’s orbit is 0.055.

First, the brightness of the moon is at its maximum during the full moon. Secondly, it is greatest when the Moon rises above everything above the horizon (this reduces absorption in the Earth’s atmosphere) during a full moon (this happens in winter). Thirdly, the Earth (and hence the Moon) is closest to the Sun in winter (at the beginning of January). The difference in distance with summer is 2e * a = 0.034 AU. or 1.034 times. This gives an increase in illumination of 1.07 times (7%). Those. The Moon is brightest at the top climax during the full moon in early January, and even if the Moon is at the perigee of its orbit.

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