Org. Laure Miolo, Nick Jacobson, Samuel Gessner, Matthieu Husson
Observatoire de Paris
77 avenue Denfert-Rochereau, 75014 Paris
These seminars are open to the public
For security reasons please registrate at least 24 hours in advance
Contact: pascale.baudoin@obspm.fr
And present yourself with an ID
Argument
Each morning session of this seminar will be divided into a reading part and a workshop part. During the reading part we will study and compare two prominent canons of the Parisian Alfonsine tradition: John of Saxony canons of 1327 and John of Lignères canons of 1322. We will focus on the way computations are organised, prescribed and grounded by the two texts and progressively address the main topics of planetary motions and eclipses. The workshop part will the occasion to discuss the research of the ALFA project postdocs in an open and constructive way. Occasionally early afternoon sessions will be organised where a conference paper will be presented on the study of mathematical astronomy. In these afternoon session we will seek to invite both specialists presentation on the Alfonsine tradition and also scholars looking into pertinent approaches and topics in different traditions of mathematical astronomy.
The different parts of a seminar day can be attended independently; they are open to the public but registration is compulsory for security reason and to obtain entry at the Observatoire gate. If you want to participate please send an email to Pascale Baudoin at Pascale.baudoin@obspm.fr mentioning your name and the seminar session to which you want to attend at the latest 24h before the seminar day.
Program
- Friday, February 8, salle du levant
15h00-16h50, Reading session
Computing the true position of the sun
Laure Miolo (Postdoc ERC ALFA) on John of Saxony, Nick Jacobson (Postdoc ERC ALFA) on John of Lignères
17h10-18h30, Workshop session
Samuel Gessner (Postdoc ERC ALFA), Material cultures of Alfonsine astronomy: a sketch
- Thursday, March 14, salle du levant
9h30-10h50, Reading session
Computing the true position of the Moon
Laure Miolo (Postdoc ERC ALFA) on John of Lignères, Samuel Gessner (Postdoc ERC ALFA) on John of Saxony
11h10-12h30, Workshop session
Nick Jacobson (Postdoc ERC ALFA), Canons in the alfonsine tradition 1: Questioning the Accuracy of the Calculations of the Alfonsine Tables (The Case of Nicholas of Cusa)
Presentation session 14h-15h30
Sho Hirose (Postdoc, Zurich), The third dimension in the manuscript: An analysis of co-planar and multi-planar configurations described in the fifteenth century Sanskrit text Goladīpikā and the usage of the armillary sphere therein
- Tuesday, April 16, salle du conseil
9h30-10h50, Reading session
Computing planetary true position
Samuel Gessner (Postdoc ERC ALFA) on John of Lignères, Nick Jacobson (Postdoc ERC ALFA) on John of Saxony
11h10-12h30, Workshop session
Laure Miolo (Postdoc ERC ALFA), Eclipse computation by John of Genoa 1
Presentation session 14h-15h30
José Chabas and MM Saby
- Friday May 17, salle Danjon
9h30-10h50, Reading session
Computing true syzygies
Nick Jacobson (Postdoc ERC ALFA) on John of Lignères, Laure Miolo (Postdoc ERC ALFA) on John of Saxony
11h10-12h30, Workshop session
Samuel Gessner (Postdoc ERC ALFA), Planetary instruments in the Alfonsine corpus
Presentation session 14h-15h30
Richard Kremer
- Thursday, June 27, salle du levant
9h30-10h50, Reading session
Computing Eclipses 1
Samuel Gessner (Postdoc ERC ALFA) on Eclypsis solis quantitatem et durationem per tabulas invenire (Ps-John of Saxony, 1332), Laure Miolo (Postdoc ERC ALFA) on John of Lignères
11h10-12h30, Workshop session
Nick Jacobson (Postdoc ERC ALFA), Canons in the alfonsine traditions 2: Questioning the Accuracy of the Calculations of the Alfonsine Tables (The Case of Nicole Oresme and Jean de Murs
Presentation session 14h-15h30
Karine Chemla
- Thursday, July 18, salle du levant
9h30-10h50, Reading session
Computing Eclipses 2
Nick Jacobson (Postdoc ERC ALFA) on Eclypsis solis quantitatem et durationem per tabulas invenire (Ps-John of Saxony, 1332), Samuel Gessner (Postdoc ERC ALFA) on John of Lignères
11h10-12h30, Workshop session
Laure Miolo (Postdoc ERC ALFA), John of Genoa eclipse computations 2
Discussion session 14h-15h30
Organisation of the following seminar year