Orion Arm - Wikipedia
The Orion Arm, also known as the Orion–Cygnus Arm, is a minor spiral arm within the Milky Way Galaxy spanning 3,500 light-years (1,100 parsecs) in width and extending roughly 20,000 light-years (6,100 parsecs) in length. [2] . This galactic structure encompasses the Solar System, including Earth.
Which Milky Way spiral arm is ours? - EarthSky
2024年5月14日 · Astronomers now believe the Milky Way galaxy has 2 major arms and many minor arms. Our sun is about halfway from the galactic center, on a minor arm that’s sometimes called the Orion Spur....
Milky Way and Our Location - NASA
2012年2月1日 · The Milky Way Galaxy is organized into spiral arms of giant stars that illuminate interstellar gas and dust. The Sun is in a finger called the Orion Spur. Graphic view of our Milky Way Galaxy.
Basic plan of the Milky Way - Galaxy Map
Orion spur. Our Sun is located within the Orion spur. Although not a spiral arm, the Orion spur is nevertheless a major Milky Way structure that crosses the Perseus arm, linking the Sagittarius and Outer arms. Such spurs connecting two or more spiral arms are …
Our Part of the Milky Way Is Four Times Bigger Than We Thought
2016年9月30日 · Published in the journal Science Advances this week, a new study reported that our surrounding area of stars, gas, and dust—called the Local Arm, Orion Spur, or Orion–Cygnus Arm—is actually about...
Our Galactic Arm May Have a Longer Reach Than We Thought
2016年10月28日 · An artist's impression of the Milky Way as seen from the outside. New research suggests that the Orion Spur, or Arm, is almost twice as long as scientists had previously thought.
Orion Arm - Simple English Wikipedia, the free encyclopedia
The Orion Arm is between the Carina–Sagittarius Arm (toward the Galactic centre) and the Perseus Arm (toward the outside Universe). The Perseus Arm is one of the two major arms of the Milky Way. The Solar system is on the Orion spur, between the two longer adjacent arms Perseus and Carina-Sagittarius. [4]
Two of the Milky Way's Spiral Arms Go Missing
2008年6月3日 · New images from NASA's Spitzer Space Telescope are shedding light on the true structure of the Milky Way, revealing that it has just two major arms of stars instead of the four it was previously thought to possess.
What is the Milky Way? It’s our home galaxy - EarthSky
2024年1月1日 · In this artist’s concept of the Milky Way, you can see the sun’s location below the central bar, at the inward side of the Orion Arm (called by its slightly dated name, the Orion Spur).
25.3: Spiral Structure - Physics LibreTexts
2023年7月29日 · The Sun is near the inner edge of a short arm called the Orion Spur, which is about 10,000 light-years long and contains such conspicuous features as the Cygnus Rift (the great dark nebula in the summer Milky Way) and the bright Orion Nebula.