04-26-2018, 05:37 AM
(This post was last modified: 04-26-2018, 05:38 AM by stevebowers.)
The Orion OB1 complex is a very large star-building region in the centre of the Orion Arm (sometimes called the Orion Spur). So in many ways this particular arm of the galaxy can justly be called 'Orion's Arm'.
Note as well that one of the earliest extrasolar colonies, Pi3 Orionis, is located in the arm or wrist of Orion as seen from Earth, so this may be one of the origins of the name.
Note as well that one of the earliest extrasolar colonies, Pi3 Orionis, is located in the arm or wrist of Orion as seen from Earth, so this may be one of the origins of the name.