Mercury at greatest elongation east
Wednesday 12th Jun 201318:33
Mercury will reach its furthest point east of the Sun in the evening sky, so that it will set over an hour behind the Sun, appearing prominent at mag -1.9 on the western horizon for a brief time shortly after sunset. At the moment of greatest elongation, Mercury will lie in the constellation Gemini, at a distance of 24°16′ from the Sun. Its declination will be +23°36’11” , and so it will be seen to best advantage in the northern hemisphere; in fact, it will be unobservable from latitudes south of 46°S.