The Sky This Week – 2012 September 18 – 25 — Naval Oceanography Portal
September 22nd has been designated as "International Observe The Moon Night", a special evening to look at and learn about our closest neighbor in space. …
The 22nd also happens to be the date of autumnal equinox, which occurs at 10:49 am EDT. At this time the Sun stands directly over the Earth’s equator just off the northeast coast of Brazil. Although the equinox officially marks the beginning of the astronomical season of autumn, the duration of night doesn’t exceed that of daylight until the 26th due to a combination of atmospheric refraction and the Sun’s apparent disc. However, it is one of the times of the year when the times of sunrise and sunset change most rapidly, so most of us will quickly notice the shortening days
The Sky This Week – 2012 September 18 – 25 — Naval Oceanography Portal