An ApJL preprint on ArXiv today reveals the the discovery of a Nova Super-Remnant (NSR) surrounding T CrB. This is only the third known NSR. It at least 200,000 years old. Turning to the forthcoming eruption, the authors predict there will be no fluorescent light echoes seen after T CrB erupts, but there might be dust-scattered, continuum light echoes during the year following the nova eruption.
British Astronomical Association
Supporting amateur astronomers since 1890