Winchell, Alexander, 1824-1891 · Chicago, S.C. Griggs and company · leaf 73
Iekschel 3,239. impossible to gaze upon these figures without feelingthe conviction that a spiral movement is in progress. Thespectra of these nebulae have not been certainly ascer-tained ; but we may venture the conjecture that they willbe found to consist of bright lines. Such a spectrum,… … Fig. 8. Spiral Nebula ix Canes Vexatici, Herschel 1.622. 3. Spiro-annular N^ebulce.—These seem to be undergo-ing a transition from the spiral to the annular form. H. 604 (Figure 9) is one ofthese. Another equal-ly transitional is H.854 (Figure 10), inwhich we see severalsegments of spiral orannular…
Nebular hypothesis · Cosmogony
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
