Maunder, Annie S. D. (Annie Scot Dill), b. 1868, Maunder, E. Walter (Edward Walter), 1851-1928 · London, C.H. Kelly · leaf 167
with the sun, and we see a differentedge in each eclipse ? or do all change continually, andin cycles of years, as do the spots, the faculae, and thegranules on the suns surface ? The prominences rotate with the sun. Whetherthe sun is eclipsed or not, whether we observe themwithout the spectroscope… … Eruptive and Quiescent Prominences. The upper group of prominences was observed on April 29, 1873,,at iqIi 5^ a.m. It changed its form very rapidly. Its extreme height at the time of observation was 90,000 miles. The lower group was observed on April 15, 1872, at 10 o^ a.m. Extreme height, 70,000…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
