Prediction of sunspots
Date
25 November 1676
Object type
Archive reference number
Manuscript page number
p327
Material
Dimensions
height (page): 320mm
width (page): 198mm
width (page): 198mm
Subject
Content object
Description
This is a copy of the engraving found in EL/C1/65/003. It shows Jean Dominique Cassini's prediction of the appearance of the sunspots in November 1676, which he exhibited to the French Academy of Sciences in Paris. It was included in a small separate tract, 'Description du mouvement que doit faire dans le Soleil une Tache sur la fin de Novembre 1676', which was sent with Cassini's letter to Henry Oldenburg dated 25 November 1676.
Transcription
Maculae in Sole appariturae a die 18. ad 30. Novembris 1676 vestigium proximum ('Approximate path of the sunspot which is due to appear on the sun from 18 to 30 November', as translated in Hall and Hall, Correspondence of Henry Oldenburg, vol. 13, no 136n2).
Transcribed by the Making Visible project
Transcribed by the Making Visible project
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