Sahal Telescopes & Binoculars - SN 1054 is a supernova that was first observed on 4th July 1054, and remained visible for around two years. The event was recorded in a document
Western Veil Nebula | Cygnus Constellation | Go Astronomy
CTB1 Medulla Nebula - Supernova Remnant with 20 hours of data and PixInsight HOO processing - Experienced Deep Sky Imaging - Cloudy Nights