The explosion that created the Vela Supernova remnant occurred 11-2,000 years ago. The object is about 800 ly away, and rivals part of the northern hemisphere’s
Veil nebula.
PlaneWave 12.5″ Astrograph with an ST11000 camera, Astrodon filters, and ASA gearless DDM-85 mount. F/5 LRGB (30/5min L, 5/8min each 2×2 RGB).