...hundred miles per second, and sometimes of double that rate. . " Their form and appearance frequently change with great rapidity, so that the motion can...transform, quite beyond recognition, a mass of these flames fifty thousand miles high, and sometimes embracing the whole period of their complete development or...

...this reason Secchi calls them metallic prominences. They usually appear in the immediate neighborhood of a spot, never occurring very near the solar poles....transform, quite beyond recognition, a mass of these flames fifty thousand miles high, and sometimes embracing the whole period of their complete development or...

...usually appear in the immediate neighborhood of a spot, never occurring very near the solar pules. Their form and appearance change with great rapidity,...transform, quite beyond recognition, a mass of these flames fifty thousand miles high, and sometimes embracing the whole period of their complete development or...

...spot. They appear to be propelled with an immense velocity, often exceeding 6,000 miles a minute. " Their form and appearance change with great rapidity,...of their complete development or disappearance."! .Surrounding the photosphere is a continuous zone of what appears to be a flickering sheet of scarlet...

...this reason Secchi calls them metallic prominences. "They usually appear in the immediate neighborhood of a spot, never occurring very near the solar poles....transform, quite beyond recognition, a mass of these flames fifty thousand miles high, and sometimes embracing the whole period of their complete development or...

...this reason Secchi calls them metallic prominences. "They usually appear in the immediate neighborhood of a spot, never occurring very near the solar poles....rapidity, so that the motion can almost be seen with the eye—an interval of fifteen or twenty minutes being often sufficient to transform, quite beyond recognition,...