GALLERY t GREEN-HEADED COMET Gerald Rhemann Although Comet 45P/Honda-Mrkos-Pajdušáková came closest to Earth in mid-February, it was just 3 days from perihelion when captured here on December 28, 2016. Its green head arises from diatomic carbon in the coma. DETAILS: Astrosysteme Austria ASA 12-inch N astrograph and FLI MicroLine ML16200 CCD camera with LRGB filters. Total exposure: 30 minutes. q TINY FL AME AMID CELESTIAL SMOKE Gordon Wright Barnard 22 is a large, mottled dark nebula in northern Taurus that hosts a small, glowing patch, the Little Flame Nebula (IC 2087), near its center. East is toward the top. DETAILS: RGB frames: Vixen VSD100 astrograph refractor and Moravian G2-8300 CCD camera; Luminance frames: TEC 140 apochromatic refractor and Moravian 11000 CCD camera. Total exposure: 13 hours. Gallery showcases the finest astronomical images submitted to us by our readers. Send your best shots to gallery@skyandtelescope.com. For submission tips, see skyandtelescope.com/aboutsky/guidelines. 74 M A Y 2 0 1 7 * SK Y & TELESCOPEhttp://www.skyandtelescope.com/aboutsky/guidelines