HaRGB image

17h Ha in 30 minute sub-frames
2 hours each RGB to colour the stars

The Ha was used as the luminescence channel and a starless version of the Ha signal was also blended into the red channel (approx 75%) and also the blue channel (30%) to simulate the Hb emission line

Optics: William Optics flt110 at F5.2
Camera: Starlightxpress SXVFH16
Guiding: Lodestar and off axis guider
Mount: AP900gto3
Filters: Badeer Ha narrowband and RGB filters
Acquisition: CCDautopilot v5, The Sky 6 and Maxim DL5
Processing: Aligned and stacked in Maxim DL5, post processing in PixInsight and Photoshop CS3.