u ORION ENSNARED Tom O'Donoghue & Olly Penrice Faint dust and gas virtually unknown to amateurs roughly a decade ago permeate the constellation Orion in this ultra-deep mosaic. DETAILS: Takahashi FSQ106 astrographs, Atik 11000 and Starlight Xpress H36 CCD cameras, and five filters. Total exposure: 400 hours. Gallery showcases the finest astro images submitted to us by our readers. Send yours to gallery@skyandelescope.com. See skyandtelescope.com/ aboutsky/guidelines. s k y a n d t e l e s c o p e .c o m * MARCH 2017 75http://www.skyandtelescope.com/aboutsky/guidelines http://www.skyandtelescope.com