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Updated: April 30, 2025
An interesting instance of bi-polarity. Another interesting phenomenon observed to-day was a cirrus cloud lit by sunlight. It was seen by Wilson and Bowers 5° above the northern horizon the sun is 9° below our horizon, and without refraction we calculate a cloud could be seen which was 12 miles high. Allowing refraction the phenomenon appears very possible. Wednesday, May 31.
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