P-M Hedén has been photographing the night sky since 1999. He has 22 publications as NASA APOD "Astronomy Picture of the Day" and many publications in magazines and books. Also involved in TV productions doing time lapses with a Dolly. He has been photographing deep sky, Aurora, Noctilucent clouds, the sun in Ha, Nacreous clouds, moon, moonlight, startrails, UV and macro and more. The passion to capture the landscape and the night sky together made him a TWAN photographer, The World at Night www.twanight.org