GALLERY t SOMBRERO GAL A X Y Kfir Simon The "unbarred" or lenticular galaxy M104 displays a bright central bulge and a prominent dust lane in mid-sized telescopes. Its common name results from its striking resemblance to the classic Mexican wide-brimmed hat. DETAILS: Astrosysteme Austria 16-inch f/8 hypergraph with FLI ProLine PL16803 CCD camera. Total exposure: 4 hours through color filters. q GLOWING CURTAINS Jamie Cooper A bright, shimmering aurora display appears over the photographer as seen at Tromvik along the northern coast of Norway on December 5, 2016. DETAILS: Canon EOS 5D Mark III DSLR camera with 24-mm f/2 lens. Total exposure: 2 seconds at ISO 5000. Gallery showcases the finest astronomical images submitted to us by our readers. Send your best shots to gallery@skyandtelescope.com. See skyandtelescope.com/aboutsky/guidelines. Visit skyandtelescope.com/gallery for more of our readers' astrophotos. sk yandtele scope.com * A PR I L 2 019 75http://www.skyandtelescope.com/aboutsky/guidelines http://www.skyandtelescope.com/gallery http://www.skyandtelescope.com