Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 191
disk often appear more or less distorted, as shown inFig. 186, which represents the- contortion of the hydrogenline as seen at various times. 1 and 2 indicate a rapidmotion of hydrogen away from us, or a down-rush at thesun; 3 and 4 (in which the line at the centre is dark onone side, and bent… … Fig. 186. hydrogen; 5 indicates local down-rushes associated withquiescent hydrogen. The contorted lines, which indicate a violently agitatedstate of the suns atmosphere, appear in the midst of otherlines which indicate a quiescent state. This is owing tothe fact that the absorption which produces…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
