Credit: © The Royal Society
                             
                         
                     
                         
                         
                             
                                 Image number: RS.9176
                             
                         
                         
                     
                 
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            'A typical sun-spot (after Langley)’
                                Date
                            
                            
                                1913
                            
                            
                        
                            
                            
                            
                                Creator - Organisation
                            
                            
                                Cassell & Co, Lithographers
                            
                            
                        
                            
                            
                            
                                After
                            
                            
                                Samuel Pierpont Langley (1834 - 1906, American) 
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Library reference
                            
                            
                                13545
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Technique
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (print): 187mm
width (print): 107mm
                            
                        
                            
                            
                            width (print): 107mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                'A typical sun-spot (after Langley)’. Illustration from The story of the heavens, by Robert Stawell Ball (London, 1913).
This print was produced from the original by Samuel Pierpoint Langley (1834-1906), founder of the Smithsonian Astrophysical Observatory.
                            
                            
                        
                            
                            
                            This print was produced from the original by Samuel Pierpoint Langley (1834-1906), founder of the Smithsonian Astrophysical Observatory.
                                Associated place