The topic of searching for nova supernova remnants was discussed again at the HAF workshop organized by The Observatory and Planetarium M. R. Štefánik in Hlohovec. Drahoš Volný spoke about image processing techniques. An overview presentation was given by Pavol A. Dubovský. The presentation can be downloaded from the following link.
We already have the first results from imaging potential candidates. Andrej Kováč provided data for the surroundings of V825 Her, from which the following images can be assembled:
