An Eclipse of the Moon

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10x10
10x10
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10x10
10x10
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An Eclipse of the Moon

from 35.00

'The Moon here is shown entering the Earth's shadow. Note the bluish band near the edge of the latter, which appears by contrast darker than the more central proportions. The coppery hue is due to the red rays of the sunlight which have been refracted into the geometrical shadow by the Earth's atmosphere, the rays of shorter wave length having been absorbed. 

An observer on the Moon at the time of a total eclipse would see the Earth surrounded by a ring of red light analogous to the colour effects commonly observed at sunrise and sunset, but more marked owing to the longer path traversed by the rays through the Earth's atmosphere. In the illustration the craters Tycho and Aristarchus and other surface details can be plainly seen in the shadowed part of the moon by this refracted light.'

Phillips, R.T.E.R. and Steavenson, W.H. (eds.) (1923) Splendour of the Heavens, A Popular Authoritative Astronomy. Second edn. London: Hutchinson & Co.

5 x 5" (127 x 127mm) Mount with a 3.43" (87mm) aperture
10 x 10" (254 x 254mm) Mount with a 6" (152mm) aperture
11.15 x 11.15 x 1.77" (283.3 x 283.3 x 45mm) Edge to edge of black hand-crafted solid wood box-frame

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