Mike Glenny
Cygnus Loop
The Cygnus Loop (aka Veil Nebula Complex) is a vast supernova remnant about 3 degrees across. The initial explosion released shock waves of gas expanding out at such high velocity that friction with the interstellar medium causes the gases to ionise.
Image is a 2-part mosaic, mapping Ha,OIII,OIII to R,G,B. View at the largest image size to see the more detailed filament structures.
Equipment used: W.O. Megrez 72 aporefractor & Flat6 0.8x FR/FF, Astrodon 5nm Ha/3nm OIII filters, QSI 683wsg CCD piggybacked on 8" LX90, autoguided via QSI 683's integrated OAG, SX Lodestar guide camera & PhD. Total exposure time: 15 hours over several nights. Subframes 1200s, unbinned.
Cygnus Loop
The Cygnus Loop (aka Veil Nebula Complex) is a vast supernova remnant about 3 degrees across. The initial explosion released shock waves of gas expanding out at such high velocity that friction with the interstellar medium causes the gases to ionise.
Image is a 2-part mosaic, mapping Ha,OIII,OIII to R,G,B. View at the largest image size to see the more detailed filament structures.
Equipment used: W.O. Megrez 72 aporefractor & Flat6 0.8x FR/FF, Astrodon 5nm Ha/3nm OIII filters, QSI 683wsg CCD piggybacked on 8" LX90, autoguided via QSI 683's integrated OAG, SX Lodestar guide camera & PhD. Total exposure time: 15 hours over several nights. Subframes 1200s, unbinned.