Perhaps the description in the above post can be better understood if you imagine two tiny but bright spaceships hovering just off the surfaces of the left and right limbs of the Moon and close to your horizon. Then let the Moon disappear. Vertical refraction would not alter the spaceships’ azimuths, but convergence of the azimuth lines toward the zenith would make the spaceships appear closer than the true direct angular distance of their separation. Now allow the Moon to reappear between the spaceships. The Moon would appear to have shrunk horizontally by a tiny amount.
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Re: Full Moon Tonight - May 19
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