Space Schedule September
Sept. 1: Asteroid 2011 ES4 will make a close flyby of Earth, passing by at a safe distance of 0.0005 AU, or 46,000 miles (75,000 kilometers).
Sept. 2: The full moon of September, known as the "Harvest Moon."
Sept. 6: The waning, gibbous moon will make a close approach to Mars in the early morning sky.
Sept. 11: Neptune is at opposition. See article above, now is the best time all year to look!
Sept. 14: The waning crescent moon will be in conjunction with Venus, Look for the two above the eastern horizon before dawn.
Sept. 17: New moon
Sept. 22: Happy equinox! Autumn arrives in the Northern Hemisphere while the Southern Hemisphere will have its first day of Spring.