Articles
The Christmas star
This article shows us what was the truly phenomena that crowns Jesus king of the judeans.
Author
Salvador J. Ribas
Language
CA
Monograph
Available Materials
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Articles
Meteor shower
What are the meteor showers? Why there are days with more activity of this phenomena? When is the better moment to enjoy seeing meteor showers? All these questions and more are answered in this article.
Author
Surinye Olarte, ICCUB
Language
CA
Monograph
Articles
The history of transits
1. First prediccions and observations of transits
Good data of planetary orbits are necessary for the prediction of planetary transits.
Language
CA
ES
EN
Monograph
Articles
The Christian calendar
History of our calendar
Author
Toni Barrera
Language
CA
Monograph