Jupiter reaches a position for optimum viewing in a telescope once every 13 months, roughly, and it makes its latest closest approach to Earth on June 10, 2019 when the planet appears in the constellation Ophiuchus along the southern ecliptic. A couple of months before and after this date, Jupiter is in perfect position for viewing with a small telescope, or even a pair of binoculars. You can’t miss it: the planet is by far the brightest object in the southeastern sky. Here's your guide to observing Jupiter in 2019.