Kepler's sun drawings are the oldest sunspot records with known dates. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. "Half-forgotten" sunspot ...
Catalogue of Paintings, Water-Colours and Engravings, exhibited in the Assembly Chamber, Parliament Buildings, Toronto, C.W. September, 1852. Contributor's copy with the Grateful Acknowledgements ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. The earliest datable sunspot drawings based on Johannes Kepler's solar observations with camera ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback