NGC 6905 The Blue Flash Nebula is a small, bright planetary nebula in the constellation Delphinus. It is estimated to be around 7,500 light years from Earth.
Image captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 Refractors
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
H-Alpha 13×900″
Blue 16×300″
Green 20×300″
Lum 20×300″
OIII 16×1800″ + 11×900″
Total integration: 20.3 hours