Here is the English translation:
We collected 378 hours of total exposure time. Most of it was in the H-alpha filter. The following images confirm the findings of the Condor instrument, and perhaps even show the individual expanding shells more clearly. However, gathering the data took our entire observing season. The positive outcome is that our tema o data reducers learned how to extract the maximum possible information from images obtained on different telescopes. In this regard, special appreciation should be given to the work of Drahoš Volný.
campaign bicolor Hα red, O[III] blue.