Orion Arm

The Orion Arm (full name: Orion-Cygnus Arm) is a spiral escalation of a minor spiral arm in the Milky Way galaxy; it is located near the galactic core and is part of the Sagittarius Arm (a major arm). The Sol system and Earth are within and amid the Orion Arm. It is also referred to as the Local Arm, Local Spur, or the Orion Spur. It is named "Orion" due to its proximity to the Orion Constellation.Wikipedia - Orion Arm
==History==
===Reign of the Forerunners===
During the Forerunner-Flood war, the Forerunner Ecumene placed Installation 04 in the Orion Arm.Halo: Warfleet – An Illustrated Guide to the Spacecraft of Halo - Pages 11 & 12
===Creation of the Covenant===
===Re-Expansion of Humanity===
In 2362 humanity had once again begun to spread out to other systems, with the flight of the Odyssey. By 2490, UNSC colonial space encompassed over 800 planets and colonies ranging from small outposts to large, important military strongholds in the Orion Arm.Xbox.com: Halo Storyline (Defunct, Copy on HBO Forums and Wayback Machine)
===Human-Covenant war===
The Human-Covenant war was fought between humanity and the Covenant Empire, after the latter declared war on humanity. The war raged from February 3rd 2525 to March 3rd 2553 and ended with a victory for humanity and its Sangheili allies, though both sides suffered enormous losses.
===Post-war===
==Astrography==
*Human Planets
**Inner colonies
**Outer Colonies
*Covenant Worlds
==Sources==
Category:Astronomy