Recorded Lectures (30/ 60 / 90 min)
Specific cases of novae and supernovae in old chronicles  Searching for novae and supernovae in ancient Chinese chronicles: Lecture III (90 min) | Mysteries of Hipparchus’s Star Catalogue  (Lecture on recent publications) |
| Painting Babylonian Public Talk: English and Cantonese | Was the Nebra Sky Disc an Instrument? History of astronomical instrumentation ~2000 years BCE. |
| Lecture for Studium Generale (English & Bahasa Indonesia) | International Conference “Constellations and Sky Cultures: Babylonian, Greek, and Southeast Asia“ |
| Lecture on History of Astronomy (BA level) (English & Bahasa Indonesia) | Lecture on History of Astronomy (PostGrad. level) (English & Bahasa Indonesia) |
Overview: What can modern astrophysics learn from old Chinese chronicles? Searching for novae and supernovae in ancient Chinese chronicles: Lecture I (90 min) | Ancient frames of reference: Transfer and Transformation of Constellations Searching for novae and supernovae in ancient Chinese chronicles: Lecture II (90 min) Similar talk recorded in Semarang, 07 Oct 2024 |
| Von MUL.APIN zur griechisch-römischen Antike Babylonische Sternbilder, Astrometrie und Zeitrechnung in Transformation (60 min) | Gestern – Heute – Morgen: Große Zeitskalen der Wissenschaft (2022) klassisches Planetariumsthema: einmal das Große Jahr rückwärts und einmal vorwärts (45 min)  |
| Wie der Löwe an den Himmel kam Die wahren Geschichten der Sternbilder (35 min)  | Ungewöhnliche Sternbilder (2022) Ein Streifzug durch die Kulturen (35 min)  |
| Die wahren Geschichten (2021) – Teaser: Plejaden – 10 min  | The Historical Way of Communicating Science (2021)(Teaser) – 3 min |
| Where to store papers? (10 min)  | |
| Novae (state of art April 2020) (60 min)  | Aufflammende Sterne (2020) (30 min)  |
| Sternbilder der alten Griechen (2018) (60 min)  | Rätsel des Weihnachtssterns (2020) (30 min)  |