The night sky

摘要

Last Quarter September 5, New Moon September 13, First Quarter September 21, Full Moon September 28. Mercury (magnitude: 0.1 to 1.5): In Virgo. For northern hemisphere observers Mercury will begin the month standing above the western horizon at sunset and will set below the western horizon about 1 hour later; as the month passes Mercury will sink towards the setting Sun until it is lost in the glare of the Sun after the third week. For southern hemisphere observers Mercury will begin the month standing high above the western horizon at sunset and will set below the western horizon about 2 hours later; as the month passes Mercury will sink towards the setting Sun until it is lost in the glare of the Sun after the third week.