GALLERY t COMETARY ENCOUNTER Gerald Rhemann Comets ASASSN (C/2018 N2) and 260P/McNaught appear to almost cross tails in this ultra-rare conjunction on the evening of September 8, 2019. DETAILS: Astro Systeme Austria ASA 12-inch f/3.6 Newtonian Astrograph with Finger Lakes Instrumentation MicroLine ML16200 CCD camera. Total exposure: 50 minutes through LRGB filters. q NORTHERN GLOW Barry Burgess Ursa Major above and hay bales below frame faint greenish auroral curtains in Hants County, Novia Scotia, on the evening of September 1, 2019. DETAILS: Canon EOS 6D DSLR with 20-mm f/1.8 Rokinon lens at f/2.5. Total exposure: 30 seconds at ISO 3200. Gallery showcases the finest astronomical images that our readers submit to us. Send your best shots to gallery@skyandtelescope.com. See skyandtelescope.com/aboutsky/guidelines. Visit skyandtelescope.com/gallery for more of our readers' astrophotos. 76 JANUARY 2 02 0 * SK Y & TELESCOPEhttp://www.skyandtelescope.com/gallery http://www.skyandtelescope.com/aboutsky/guidelines