Above is a scan of drawings from the 15 November 1999 grazing Mercury transit, barely lasting 59 minutes. The pencil drawings give a visual impression of the transit as observed using a 20 cm Schmidt-Cassegrain telescope with glass objective filter, blue ocular filter, and at 107x magnification. The drawings were made at approximately 21:20UT, 21:37UT and 21:59UT. Mercury is moving from the upper left to the lower left, passing close to a polar facula. We’ll keep these images as a placeholder until we receive your first imagery of the 2016 Mercury transit.