"What we see as twinkling stars is actually the flickering
of distant campfires of those people who live in the sky, perhaps our ancestors."
"The planets are near, and our vision reaches them.
The fixed stars are too far, and their distance causes our vision to waver."
"The enormous space to the stars takes part in the
celestial daily motion. Planets do not thus rotate, and therefore do not
"Scintillation is a true change in stellar brightness and color. Venus scintillates, but the Moon does not, proving Venus' variability."
Robert Hooke (ca 1660)
"... those bright scintillations near the Horizon, are not by much so quick and sudden in their consecutions of one another, as the nimbler twinklings of Stars nearer the Zenith. The true cause ... is from the inflection, or multiplicate refraction of those Rays of light within the body of the Atmosphere."
"Scintillation disappears in telescopes, and must originate
in the air. Telescopes should be placed on the tops of the highest mountains."
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