The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward.Due to differences between the calendar year and the tropical year, the September equinox may occur anytime from September 21 to 24.. At the equinox, the Sun as viewed from the equator rises due east and sets due west. Before the …

The Ruger 10/22 is a series of semi-automatic rifles produced by American firearm manufacturer Sturm, Ruger & Co., chambered for the .22 Long Rifle rimfire cartridge.It uses a patented 10-round rotary magazine, though higher capacity box magazines are also available. The standard carbine version of the Ruger 10/22 has been in production continuously since 1964, making it one of …