Lockyer, Norman, Sir, 1836-1920 · London : Macmillan and Co. · leaf 66
m we call a sun-spot is yet large enough to swallow us up, and half adozen of our sister planets besides ; while, if we employthe finest telescope, we can only observe the variousphenomena as we should do with the naked eye at adistance of iSo,ooo miles. To look at the Sun through a telescope,…
Astronomy · Solar system
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