'Computational History' derives history from data and nowadays therefore relies on the
technologies of the digital humanities. 'Computational History of Science' addresses questions
of history by evaluating historical data e.g. for tracing back copying traditions and conclude
on transfer and transformation of data and knowledge. The term 'Applied Historical Astronomy'
in contrast tries to address questions of contemporary science by evaluating historical data
in comparison with most recent data. This opens new possibilities e.g. in the search for
stellar transients among historical data. In the contribution by Hoffmann & Vogt we will focus
on the stellar transients among all the topics mentioned above. Philipp Protte discusses the
accuracy of magnitudes and positions in ancient star catalogues Andreas Schrimpf & Frank
Verbunt present an analysis of an early modern star catalogue. Victor Reijs analyses the
visibility of celestial objects for naked-eye observers and Björn Kunzmann showcases some
important variable stars in the history of astronomy. Rene Hudec presents astronomical
photographic archives as a valuable data source for modern astrophysics. José M. Vaquero
discusses the studies on solar observations made during the last four centuries. More technical
are the contributions of Georg Zotti on Stellarium and Karsten Markus-Schnabel on data-mining
and data-processing technologies. Ido Yavetz & Luca Beisel are developing a digital tool of
computational history of science for the simulation of pre-modern astronomical models. Gerd
Graßhoff focuses more on the application of computational history with regard to Kepler's
Astronomia Nova while Tim Karberg presents an analysis of the astronomical orientation of
buildings in the North Sudan.
