A voyage in space; a course of six lectures "adapted to a juvenile auditory" delivered at the Royal Institution at Xmas 1913 (1915)
Turner, Herbert Hall, 1861-1930 · London Society for Promoting Christian Knowledge · leaf 277
cture of a nebula of a differentkind. You see a gauzy mass running down the pic-ture with a bright edge : and you will see that thestars are much more numerous on one side of the 256 A VOYAGE IN SPACE edge than on the other. It may be that they reallyare more numerous; but, if so, there must be… … Fig. 84.—Nebula in Cygnus. stars; so that the light of many of the faint stars isblotted out. If we count the number of stars withina given area on one side of the edge, and also thenumber in an equal area on the other side, we shallget a notion how many are lost by the stoppage oflight. This…
Astronomy -- Juvenile literature
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