Astronomy for amateurs . Fig. 67.—Womans head in the Moon. bands spread out, some being prolonged to a consider-able distance. And yet, from a little v^ay off, does itnot form the mans face above indicated ^ From the earliest astronomical observations madewith the aid of instruments by GaHleo, in 1609, peopletried to find out what the dark spots could represent, 238 THE MOON and they were called seas, because water absorbs light,and reflects it less than terra firma. The Moon of itself. Fig. 68.—The kiss in the Moon. 239 ASTRONOMY FOR AMATEURS possesses no intrinsic light, any more than our pl
Astronomy for amateurs . Fig. 67.—Womans head in the Moon. bands spread out, some being prolonged to a consider-able distance. And yet, from a little v^ay off, does itnot form the mans face above indicated ^ From the earliest astronomical observations madewith the aid of instruments by GaHleo, in 1609, peopletried to find out what the dark spots could represent, 238 THE MOON and they were called seas, because water absorbs light,and reflects it less than terra firma. The Moon of itself. Fig. 68.—The kiss in the Moon. 239 ASTRONOMY FOR AMATEURS possesses no intrinsic light, any more than our planet,and only shines by the light of the Sun that illuminatesit. As it rotates round the Earth, and constantlychanges its position with respect to the Sun, we see more ^:. Fig. 69.—Photograph of the Moon. or less of its illuminated hemisphere, and the result isthe phases that every one knows so well. At the commencement of each lunation, the Moon isbetween the Sun and the Earth, and its non-illuminatedhemisphere is turned toward us. This is the New 240 THE MOON Moon, invisible to us; but two days later, the slim cres-cent of Diana sheds a gentle radiance upon the the crescent enlarges. When the Moon ar-rives at right angles w^ith ourselves and v^ith the Sun,half the illuminated hemisphere is presented to is the first quarter. At the time of Full Moon, it isopposite the Sun, and v^e see the whole of the hemisphere 9 > Suns ^ R ays. ->
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectastronomy, bookyear19
