Here’s a quick look at what’s going on in the sky during the month of September, 2012:
September 7 — Moon at apogee (its farthest point from the Earth).
September 8 — Last Quarter Moon, 9:15 a.m. One-half of the Moon appears illuminated by direct sunlight while the illuminated part is decreasing.
September 9 — Epsilon Perseid meteor shower peaks. Unfavorable year for this minor shower.
September 12 — Epsilon Eridanid meteor shower peaks. A favorable year for this minor shower.
September 15 — New Moon, 10:11 p.m. The Moon is not illuminated by direct sunlight.
September 18 — Moon at perigee (its closest point to the Earth). Because the Moon’s perigee comes so close to the New Moon, expect extremely high tides.
September 22 — First Quarter Moon, 3:41 p.m. One-half of the Moon appears illuminated by direct sunlight while the illuminated part is increasing.
September 22 — Autumn Equinox, 10:49 a.m. The Sun crosses the Equator.
September 29 — Full Harvest Moon, 11:19 p.m. The visible Moon is fully illuminated by direct sunlight. Though the Moon is only technically in this phase for a few seconds, it is considered “full” for the entire day of the event, and appears full for three days.