open spiral arm

См. также в других словарях:

• Open cluster — Galactic cluster redirects here. See also galaxy groups and clusters NGC 265, an open star cluster in the Small Magellanic Cloud An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and… …   Wikipedia

• Orion–Cygnus Arm — Observed structure of the Milky Way s spiral arms[1] The Orion–Cygnus Arm is a minor spiral arm of the Milky Way galaxy some 3,500 light years across and approximately 10,000 light years in length.[2] …   Wikipedia

• Sagittarius Arm — The Sagittarius Arm (also known as Sagittarius Carina Arm ; labeled I ) is generally thought to be one of the spiral arms of our home galaxy, the Milky Way. Each spiral arm is a long, diffuse curving streamer of stars that radiates out from the… …   Wikipedia

• Perseus Arm — The Perseus Spiral Arm is a major spiral arm of the Milky Way galaxy. The Milky Way is a barred spiral galaxy with four major arms and at least two minor arms or spurs. The Perseus Spiral Arm, with a radius of approximately 10,700 parsecs, is… …   Wikipedia

• Orion Arm — The Orion Arm is a minor spiral arm of the Milky Way galaxy. The Solar System and Earth are within the Orion Arm. It is also referred to as the Local Arm, the Local Spur or the Orion Spur.The Orion Arm is named for its proximity to the stars in… …   Wikipedia

• Barred spiral galaxy — A barred spiral galaxy is a spiral galaxy with a central bar shaped structure composed of stars. Bars are found in approximately half of all spiral galaxiescite book author=J. Binney, S. Tremaine year=1987 title=Galactic Dynamics… …   Wikipedia

• Orion's Arm — For a minor spiral arm of the Milky Way galaxy, see Orion Arm. For the stars which form the arm of the Orion asterism, see Orion (constellation). Orion s Arm, (also called the Orion s Arm Universe Project, OAUP, or simply OA) is a multi authored… …   Wikipedia

• List of Spiral characters — This is a list of characters from the Japanese manga and anime series and its prequel, Spiral: Alive . Spiral: The Bonds of Reasoning CharactersMain Characters; Nihongo|Ayumu Narumi|鳴海歩|Narumi Ayumu: The protagonist of Spiral, Ayumu is very… …   Wikipedia

• small arm — small armed, adj. Usually, small arms. a firearm designed to be held in one or both hands while being fired: in the U.S. the term is applied to weapons of a caliber of up to one in. (2.5 cm). [1680 90] * * * ▪ military technology Introduction… …   Universalium

• Milky Way Galaxy — Large spiral galaxy (roughly 150,000 light years in diameter) that contains Earth s solar system. It includes the multitude of stars whose light is seen as the Milky Way, the irregular luminous band that encircles the sky defining the plane of… …   Universalium

• List of NGC objects (1–1000) — Contents 1 1–100 2 101 200 3 201–300 4 301–400 5 401– …   Wikipedia