Universe images by Knut

M13 in Hercules, total 45 min exposure time in LRGB, C11 Celestron f10 with Apogee AltaF16M CCD. Guided with William Optic 110 and StarlightXpress Superstar. Stacked in MaxImDl and edited in Photoshop.
March 29 2009. Link til bildet: https://skaarpictures.com/iGalerieAstro/?q=item/60-m13-globular-cluster M13.jpg