Recreations in astronomy : with directions for practical experiments and telescopic work (1879)
Warren, Henry White, 1831-1912 · New York : Harper & Brothers · leaf 230
Ononis... Frontispiece. 7 5 8 Yellow and bine. 8. fi Orion is... 44 9 1 ; 8 Kigel. 9. S ... (C 10 2 8 Red and white. 10. e ... II Septuple. 11. \ ... 44 7> White and violet. 12. <r ... ; A. B. 11 4 10 (Htnple. 13. Castor <;<> 5J 2 3 White. 14. Pollux tig Triple. (Irange, craw lilac.… … Fig. 75.—Aspects and Revolution of Double Stars. The meaning of these double stars is that two ormore suns revolve about their centre of gravity, as themoon and earth about their centre. If they have plan- . a- doubtless they have, the movement is no moreiplicated than the planets we call…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
