Turner, H. H. (Herbert Hall), 1861-1930 · London, E. Arnold · leaf 148
ary, and the wetplate may dry up before the exposure is concluded—nay, even before it is commenced, if the observerhas to wait for passing clouds—and therefore itmay be said that the successful application ofphotography to astronomy dates from the timewhen the dry plate was invented; when it… … VIL —Great Co.met of Xov. yvu, 1882. (!ro)n a lliotograpk talioi at ilic Royal Obsc>Viitory, Ca/c of Cood Hope.) ACCIDENTAL DISCOVERIES 123 limits of one night, it is quite easy to close up thetelescope and return to the operations again on ^the next fine night; and so on, if not…
Astronomy
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