discovered moments later through the use of the Galexview application that supported searching of GALEX image tiles. The nuv source (near ultra violet) spotted there matched with cataloged star UCAC4 788-002438. The Galex detection and UCAC4 788-002438 are alternative designations for IRAS 00500+6713, itself known since 1986. Images secured in early September 2013 with the Kitt Peak 2.1m reflectorunder the direction of Dr. George Jacoby revealed an unusually faint shell in narrow-band [OIII] imagery surrounding the Mg. 15.4 central star. Taken together, Pa 30 was recorded in the HASH database as a 'likely PN', until September 30, 2021 when the status was upgraded to 'Supernova Remnant'. In 2018, preliminary spectra of the hot central star by French amateur astronomer Pascal Le Dû revealed unique spectral lines that were brought to the attention of professional collaborator Prof. Quentin Parker and colleagues who had independently observed the nebula and star with the 10m Grantecan Telescope on La Palma in 2017. It was this data which revealed the faint [SII] nebula lines from Pa30 and allowed the extreme expansion velocity to be measured. This helped speed up the discovery process. In October 2022, Professor Rob Fesen obtained deep narrowband imagery in the light of [SII] that revealed fine filaments not revealed until now. See also Guest star (astronomy) List of supernovae List of supernova remnants SN 1054 References Supernova remnants Cassiopeia (constellation) 12th century in science 1181 810804 Historical supernovae