Mercury will reach greatest eastern elongation
Just after the Sun sets on July 12th, tiny planet Mercury will reach its greatest eastern elongation. Since Mercury will be at its highest point in the evening sky, it’s a great opportunity to observe the tiny planet. It won’t be high in the sky for long though, so look above the western horizon after sunset to catch the elusive planet.
New Moon
July 13th is the darkest night of the month and therefore the best time to observe the more faint objects like galaxies and star clusters.