Saturn's ring
Date
18 May 1666
Creator
Unknown, Artist
Object type
Archive reference number
Manuscript page number
vol1 p384
Material
Dimensions
height (page): 298mm
width (page): 180mm
width (page): 180mm
Subject
Content object
Description
An image of the ring of Saturn, 'Le 5 Octobre 1665, Campani sic delineavit' [On 5 October 1665. Campani drew [Saturn's ring] thus].
This is a copy of the figure printed in Guiseppe Campani, Lettro ... intorno alle ombre delle stelle Medicee nel volte di Giove ... (1665), where Saturn is shown to cast a shadow on its ring (see Cl.P/8i/8/001).
In 1663, Giussepe Campani observed Saturn as a central globe surrounded by a ring, which he published as Ragguaglio di due nuove osservazioni (1664). Adrian Auzout agreed with the shadow on the lower part, but objected to the continuous dark band on the interior edge of the ring at the top of the figure. Auzout expressed his objections in his Lettre à M. l’Abbé Charles (1665). Campani had in fact observed what is now known as the crêpe ring of Saturn. (Albert van Helden, 'Annulo Cingitur: The Solution of the Problem of Saturn', Journal of the History of Astronomy, 5 (1974), 155-74 (pp. 167-68).)
This is a copy of his letter as entered in the Letter Book Original (LBO/1/325a).
This is a copy of the figure printed in Guiseppe Campani, Lettro ... intorno alle ombre delle stelle Medicee nel volte di Giove ... (1665), where Saturn is shown to cast a shadow on its ring (see Cl.P/8i/8/001).
In 1663, Giussepe Campani observed Saturn as a central globe surrounded by a ring, which he published as Ragguaglio di due nuove osservazioni (1664). Adrian Auzout agreed with the shadow on the lower part, but objected to the continuous dark band on the interior edge of the ring at the top of the figure. Auzout expressed his objections in his Lettre à M. l’Abbé Charles (1665). Campani had in fact observed what is now known as the crêpe ring of Saturn. (Albert van Helden, 'Annulo Cingitur: The Solution of the Problem of Saturn', Journal of the History of Astronomy, 5 (1974), 155-74 (pp. 167-68).)
This is a copy of his letter as entered in the Letter Book Original (LBO/1/325a).
Related fellows
Adrian Auzout (1622 - 1691, French) , Physician and Astronomer, Physician
Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
Jean Dominique Cassini (1625 - 1712, Italian) , Astronomer, Astronomer
Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
Jean Dominique Cassini (1625 - 1712, Italian) , Astronomer, Astronomer
Associated place