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 299
toldFig 8g us by using the other. And now I want totell you some of the things we have found out bywatching the movements of the stars in these twoways. First of all let us pay a few visits to the doublestars—cases where two stars are seen close together,and where careful watching has shown that… … y LINES INSPECTRUM THE STARS 277 are so nearly equal in size that we cannot give onethe preference in this way; and in all cases it ismore correct to regard both stars as revolvinground some point in between them than to regardone as fixed and the other as revolving round it. These double stars are…
Astronomy -- Juvenile literature
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
