The Galileo Project
site map

Cysat, Johann Baptist

1. Dates
Born: Lucerne, 1586
Died: Lucerne, 1657
Dateinfo: Birth Uncertain
Lifespan: 71
2. Father
Occupation: Man Of Letters And Civic Leader In Lucerne
No information on financial status.
3. Nationality
Birth: Lucerne, Switzerland
Career: Germany, Switzerland
Death: Lucerne, Switzerland
4. Education
Schooling: Religous Order, D.D.
In 1611, he was a student of Christoph Scheiner at the Jesuit College in Ingolstadt. From what follows, I assume B.A. As one who had been through the complete Jesuit training (though he may not have taken the fourth vow), he had to have had a degree in theology.
5. Religion
Affiliation: Catholic, a Jesuit
6. Scientific Disciplines
Primary: Astronomy
7. Means of Support
Primary: Church Life
1603/4, entered Jesuit order as a novice.
1618, Professor of Mathematics at Ingolstadt.
1623-7, Rector of Jesuit College in Lucerne.
1627-8, the order sent him to Spain.
1630s, architect of the Jesuit college church built in Innsbruck.
1637-41, Rector of Jesuit College in Innsbruck.
1646-50, Rector of Jesuit College in Eichstadt.
8. Patronage
Type: Scientist
He defended Scheiner in his priority dispute with Galileo over sunspots. This certainly implies a relation, and all of those academic appointments suggest influence. After hesitation, I am leaving this in as patronage; the ambiguities are obvious.
9. Technological Involvement
Types: Instruments, Architecture
He was perhaps the first Swiss man to make telescopes. He built a 6 ft and a 9 or 10 ft for observing comets.
Architect of the Jesuit college chapel at Innsbruck.
10. Scientific Societies
Memberships: None
  1. Ruedolf Wolf, Biographen zur kulturgeschichte der Schwiez, 1, (Zurich, 1858), 105-118. [xerox]
  2. Neue deutsche Biographie (Berlin, 1952- ).
Not Available and Not Consulted
  1. Bernard Duhr, S.J., Geschichte der Jesuiten in den Laenden deutsche Zunge (Freiburg in Breisgau, 1907-1913), passim.
  2. M.W. Burke-Gaffney, S.J., Kepler and the Jesuits, (Milwaukee, Wis, 1944), pp. 113-19.
Compiled by:
Richard S. Westfall
Department of History and Philosophy of Science
Indiana University

Note: the creators of the Galileo Project and this catalogue cannot answer email on geneological questions.

1995 Al Van Helden
Last updated
Home | Galileo | Biography | Chronology | Family | Portraits |
Science | Christianity | Library | About | Site Map | Search

Please note: We will not answer copyright requests.
See the copyright page for more information.