16th – New Moon
22nd – September Equinox. There will be nearly equal amounts day and night throughout the world. The first day of Autumn in the Northern Hemisphere and the first day of Spring in the Southern Hemisphere.
29th – Uranus at Opposition. Uranus will be as close as it can get to the Earth, fully illuminated from the Sun and will appear as a blue-green dot on powerful telescopes.
30th – Full Moon