Science Fair Project Encyclopedia
Orion Arm
- For an article on the website, see Orion's Arm
The Orion Arm or Local Arm (labeled "0") is a minor, spiral arm of the Milky Way galaxy. The Earth's solar system may be found close to the inner rim of the Local Arm, in the Local Bubble, 8.0 ± 0.5 kpc from the galactic center. This arm gets its name from its proximity to the stars in the Orion constellation. The Local Arm is located between the Sagittarius Arm (facing the galactic center) and the Perseus Arm (towards the outer, Cygnus Arm). It is unknown whether the Local Arm is a branch of the Perseus or Sagittarius arm.
A number of Messier objects are found in the Local Arm: M6, M7, M23, M25, M27, M29, M34, M35, M39, M40, M41, M42, M43, M44, M45, M46, M47, M48, M50, M57, M67, M73, M76, M78, M93, M97.
See also
External links
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details