Title: Rosetta Nebular , location: Spain ,
ISO 1600, 420sec x 20shot.
camera: Astro 60D -18 °C refrigerated .
Takahashi Tsa  102 to 800mm focal + IDAS LPS filter.
No Darks, No Flats. Dithering with PHD Guiding.
Processed in Pixinsight and Photoshop.
Photographer’s Homepage: http://www.esmuysimple.com/