is that a real false color image or cgi?
i can’t tell from the article
Spanish Google translation: The light signal VT 1210 + 4956. It is not appreciated in 1997 (A) and yes on November 20, 2017 (20) Almost 21 years later. In (C) optical image of its location from the Hubble telescope. Dong et. to the. 2021 | Science https://www.lavanguardia.com/ciencia/20210902/7695946/descubierto-tipo-supernova-identificada-universo.html