M51 & Tidal Stream

DAVID SLACK

Prudhoe, Northumberland

Celeston 8″ F5 reflector, starlight xpress H9 mono CCD, Skywatcher HEQ5 pro mount & ASI 120mm based finder guider.

2015 Colour image equipment – C8, Canon EOS 1100D, Astronomik CLS filter and HEQ5 pro

The whirlpool galaxy and companion with a good amount of tidal stream showing from just 22 x 3 minute dithered exposures of luminance. 2 x drizzle and maximum entropy de-convolution were used in processing which reduced noise and allowed me to push the background brightness using DDP.

Colour added from a DSLR image I took in 2015 consisting of 16 x 5 minute exposures.

2017-04-25T00:00:00