Remnant of the supernova seen by Chinese astronomers in 1054. A pulsar spinning 30 times a second powers the glowing filaments. ~6,500 ly.
Scope: ~2500mm: 127-150mm Mak/SCT (+Barlow)
Camera: Colour OSC + dual-band Ha/OIII filter
Exposure: 120-180s subs, 3h+ total (guided)
