M51 Compositage L80%- Ha80R20VB
Lunette Astro-Physics 130  sur monture Astro-Physics 1200 GTO caméra Sbig STL Filtres HaRGBL Astrodon
2h 15 en Halpha 
66 x 5 minutes en Luminance =  330 minutes = 5h 30
R=G=B = 19 x 5 minutes = 1h 35
Total de  12 h 30