Sunspots are not everlasting since the sun’s stretch is gaseous
Saturday, December 31st, 2011Age spots Sunspots are not everlasting since the sun’s stretch is gaseous. Simply because the sun rotates on its axis, a sunspot cannot be observed ceaselessly for more than about two weeks. In 1826 novice astronomer Heinrich Schwabe began a sequence of solar observations (hoping of finding world Vulcan). By 1843 he had collected enough [...]