The Whirlpool in Colour, M51

11x307, 10x615 second subframes, iso800.

Total exposure 2 hours 39 minutes.

 

Imaging:

Skywatcher Evostar 150,

Modified Canon 350D (Baader ACF-2) with Astronomik CLS filter.

Guiding:

unbranded 50mm, 190mm focal length, finder-guider,

Orion SSAG.

All on

Skywatcher HEQ5 Pro

 

Stacked and processed in DSS, Fitswork and Gimp

 

26th April 2017

Cambridge, UK

Done