Notes on The Sun

Sun Indistinct

From [Gravitation vs. Gravity https://archive.org/details/gravitationvers00chamgoog] by Prof. Charles Lane Poor:

  “ Every series of measures, heretofore made, shows a distinct, measurable departure from sphericity, but these departures are extremely minute. Such measures are extremely difficult to make, for the visible edge of the sun is not a distinct, clean-cut line ; it is hazy, in- definite, and fades out gradually. ”