Jupiter
                                Date
                            
                            
                                7 August 1677
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Jean Dominique Cassini (1625 - 1712, Italian) , Astronomer, Astronomer
                            
                            
                        
                            
                            
                            
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                                p2
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 238mm
width (page): 173mm
                            
                        
                            
                            
                            width (page): 173mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Figure of the principal spot on Jupiter and its discs from Cassini's letter dated 7 August 1677 to Henry Oldenburg. Cassini states that he sends two copies of the configurations of the satellites of Jupiter for August and September, one copy being for Flamsteed, and that he will produce the remainder of the configurations for this year.  
Cassini's letter was read at the meeting of 14 March 1678.
There is a copy of this image at LBO/28/360.
                            
                            
                        
                            
                            
                            Cassini's letter was read at the meeting of 14 March 1678.
There is a copy of this image at LBO/28/360.
                                Object history
                            
                            
                                At the meeting of the Royal Society on 14 March 1678, ‘Mr. Hooke then read a discourse of Signor Cassini, concerning his farther prosecuting of the discovery of the diurnal motion of Jupiter upon its axis by the spot observable in one of the belts; wherein were several very remarkable circumstances and discoveries’ (Birch 3:392).
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                Jean Dominique Cassini (1625 - 1712, Italian) , Astronomer, Astronomer
Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                            
                        
                            
                            
                            Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                                Associated place