Teaching

Astronomical observations I. In this course we introduce the basic concepts of the "theory of observations". We speak about what we can learn from the brightness of stars (distance measurments), the most important optical phenomena and tools (how astronomical telescopes work), the most famous constellations, the celestial coordinate systems and how they are applied. The course is held in Hungarian.	Notes for the classes (in Hungarian)	Information for students (in Hungarian)
Astronomical observations III. In this course we keep introducing the basic concepts of the "theory of observations". We put the focus on the so-called two-body problem, i.e. how the planets move under the gravitational influence of the Sun. Doing calculations we get familiar with the most important notations and mathematical relations between them. The language of the course is Hungarian.	Notes for the classes (in Hungarian) Anna Császár is happily acknowledged to have written the manuscript of these notes. Please report any mistake to me. A kéttest-probléma alapképletei Kozmikus sebességek, pályaelemek Vektorok, pályaelemek Időfejlődés, Kepler-egyenlet Kiegészítő anyag I. Az általános koordináta-rendszer Kiegészítő anyag II. Pályát jellemző szögek meghatározása Mozgás kúpszelet alakú pályákon Kiegészítő anyag III.	Information for students (in Hungarian)
Astronomical observations II. In this course we go deeper into the details of astrometrical coordinate systems: we start with learning the basics of spherical trigonometry and then apply it in converting the coordinates from one system to another, calculating the positions of objects on the celestial sphere, the time of their rise and set, etc. The language of the course is Hungarian.	Notes for the classes (in Hungarian) These notes are based on the ones written by Krisztina Perger and Tamás Hajdu. Thanks to Vanda Budaházi for the handwritten manuscript. A gömbi trigonometria alapjai Az égrajzi koordináta-rendszerek A második egyenlítői koordináta-rendszer Az égitestek kelése és nyugvása A sajátmozgás Feladatok	Information for students (in Hungarian)
Celestial mechanics I. In this lecture we learn the basics of analytical mechanics, i.e. the principle of the least action, the Euler-Lagrange, the Hamiltonian and Hamilton-Jacobi equations, canonical constants and action-angle variables etc. We then apply these general results to the unperturbed and perturbed Kepler problem, deriving e.g. the Lagrangian planetary equations. The language of the course is Hungarian and the teaching is shared with Dr. Zsolt Sándor.	Notes for the classes (in Hungarian) All the necessary notes can be found on the webpage of Prof. Bálint Érdi.	Information for students (in Hungarian) Ha valamilyen pozitív vagy negatív kritikával szeretnétek segíteni az oktatói munkámat, akkor azt ezen a linken tehetitek meg. Köszönöm!

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