Nasmyth's Sunspot Observations, 1864 is a photograph by Detlev Van Ravenswaay which was uploaded on May 7th, 2013.
Nasmyth's Sunspot Observations, 1864
Nasmyth's sunspot observations. Artwork of observations of sunspots, made on 5 June 1864 by the Scottish amateur astronomer James Nasmyth... more
Title
Nasmyth's Sunspot Observations, 1864
Artist
Detlev Van Ravenswaay
Medium
Photograph
Description
Nasmyth's sunspot observations. Artwork of observations of sunspots, made on 5 June 1864 by the Scottish amateur astronomer James Nasmyth (1808-1890). Sunspots, first observed with telescopes in 1610, are areas of magnetic activity that are cooler than the rest of the Sun's surface. They are massive structures, ranging in size from hundreds to thousands of kilometres across. This artwork shows the cooler central areas (dark) and the hotter (lighter) areas round each sunspot. This drawing, here taken from a German publication, was also published in Nasmyth's autobiography of 1885.
Uploaded
May 7th, 2013
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