the ejecta was expanding. QU Vulpeculae is surrounded by a nova remnant, a planetary nebula-like shell of the material that was ejected during its outburst. Its remnant appears roughly spherical. In 2020, its radius was measured to be about 2.1 arcseconds, meaning the shell has been expanding at a rate of about 0.058 arcseconds per year. References External links https://web.archive.org/web/20050907140444/http://www.tsm.toyama.toyama.jp/curators/aroom/var/nova/1980.htm Novae Vulpecula 1984 in science Vulpeculae, QU