Heritage of Konkoly's Solar Observations: the Debrecen Photoheliograph Programme and the Debrecen Sunspot Databases

Abstract

The primary task of the Debrecen Heliophysical Observatory (DHO) was to produce the detailed and reliable photographic documentation of the solar photospheric activity since 1958. This long-term effort resulted in various solar catalogues based on ground-based and space-borne observations. The DHO hosts solar-image databases containing heritages of two former Hungarian observatories. One of the sets of drawings was observed between 1872 and 1891 at the Ógyalla Observatory (now Hurbanovo, Slovakia) founded by Miklós Konkoly-Thege (1842-1916). We briefly summarize the history of the events that resulted in the longest photographic sunspot database available at the DHO at present, and we show the basic role of Dr. Miklós Konkoly-Thege in this achievement.

8 pages, 11 figures, published in: Conference dedicated to the 100th anniversary of the death of Dr. Nicolaus Thege-Konkoly, and 145th anniversary of the founding of the Hurbanovo Observatory, May 18-20, 2016, Hurbanovo, Slovakia, ed. E. Koči, ISBN: 978-80-85221-91-6, Slovenská Ústredná Hvezdáreň, Hurbanovo, 2016, 29-36. arXiv admin note: text overlap with arXiv:1606.00669