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13. Galaxy - Wikipedia, the free encyclopedia
- en2.wikipedia.org
- Galaxy.
- For alternate meanings see galaxy (disambiguation).
- Seen behind a veil of foreground stars which lie within our own galaxy, this face-on Spiral Galaxy ESO 269-57 is about 150 million light-years away and 200,000 light-years across. ...
- Stars are almost always found in collections called galaxies (Greek γαλαξίας, galaxías male noun - the milky nebula , Milky Way), together with gas, dust, and "dark matter"; ~10-20% of a galaxy is composed of stars, gas, and dust. ...
- A slightly more extensive description of galaxy types is given by the Hubble sequence. Our own galaxy, the Milky Way, sometimes simply called the Galaxy (with uppercase), is a large barred spiral galaxy about 30 kiloparsecs or 100,000 light years in diameter and 3,000 light years in width, contains about 300 billion stars and has a total mass of about a trillion times the mass of the Sun.
- A new type of galaxy, Ultra Compact Dwarf Galaxies was discovered in 2003 by Dr Michael Drinkwater of the University of Queensland et al.
- Our galaxy is a member of the Local Group, and together with the Andromeda Galaxy dominates it; overall the Local Group contains about 30 galaxies in a space about one megaparsec across. ...
- In a treatise in 1755, Immanuel Kant, drawing on earlier work by Thomas Wright, speculated (correctly) that the galaxy might be a rotating body of a huge number of stars, held together by gravitational forces akin to the solar system but on much larger scales. ...
- Using a refined approach, Kapteyn in 1920 arrived at the picture of a small (diameter ~15 kiloparsecs) ellipsoid galaxy with the Sun close to the center. ... Both analyses failed to take into account the absorption of light by interstellar dust present in the galactic plane; once Robert Julius Trumpler had quantified this effect in 1930 by studying open clusters, the present picture of our galaxy as described above emerged.
- This radiation allowed for much improved study of the Galaxy, since it is not affected by dust absorption and its Doppler shift can be used to map the motion of the gas in the Galaxy. These observations led to the postulation of a rotating bar structure in the center of the Galaxy. ...
- Among other things, it established that the missing dark matter in our galaxy cannot solely consist of inherently faint and small stars. ...
- In 2004, the galaxy Abell 1835 IR1916 became the most distant galaxy ever seen by humans.
- The word galaxy was derived from the Greek term for our own galaxy, kyklos galaktikos meaning "milky circle" for the system’s appearance in the sky. ... Consequently, this term fell into disuse, replaced by applying the term galaxy generically to all such bodies.
14. HubbleSite - Galaxy NGC 4881 and the Coma Cluster - 6/14/1995
- www.stsci.edu
- home > newscenter > newsdesk > archive > releases > 1995 > 07 Galaxy NGC 4881 and the Coma Cluster .
- The brightest object in this picture is NGC 4881 just above center , an elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than five times farther away than the Virgo Cluster. ...
- About Galaxy > Elliptical.
15. IRAS View Of The Milky Way Galaxy
- www.ipac.caltech.edu
- IRAS View of the Milky Way Galaxy.
- The bright horizontal band is the plane of the Milky Way, with the center of the Galaxy located at the center of the picture. ...
16. A New Local Group Galaxy
- www.ast.cam.ac.uk
- A New Local Group Galaxy: The Cetus Dwarf Galaxy .
- Astronomers had previously overlooked the galaxy because of its low surface brightness relative to the night sky. ...
17. M31 - Andromeda Galaxy
- www.astrocruise.com
- M31 - Andromeda Galaxy.
- Object Data: M31 (NGC 224, the famous Andromeda galaxy) is the nearest large galaxy to the earth. ...
18. 2dF Home Page
- www.aao.gov.au
- The 2dF Galaxy Redshift Survey is a joint UK-Australian project, and was one of the main motivations behind the design of 2dF. The goal is to carry out a large redshift survey of 250,000 galaxies (selected from the APM Galaxy Catalog) to make a 3D map of the Southern Sky. ...
- 2dFGRS observations are now finished (April 2002), with over 220,000 galaxy redshifts obtained. ...
- The 2dF QSO Redshift Survey is integrated with the galaxy survey and aims to take spectra of 30,000 QSOs in parallel. ...
19. Mysterious Galaxy - Signed First Editions of Mystery, Science Fiction, Fantasy, Horror & Suspense Books
- www.mystgalaxy.com
- Take me to Mysterious Galaxy's BookSense website.
20. HubbleSite - Hubble Confirms Existence of Massive Black Hole at Heart of Active Galaxy - 5/25/1994
- oposite.stsci.edu
- home > newscenter > newsdesk > archive > releases > 1994 > 23 Hubble Confirms Existence of Massive Black Hole at Heart of Active Galaxy .
- Astronomers using the Hubble telescope have found seemingly conclusive evidence for a massive black hole in the center of the giant elliptical galaxy M87, located 50 million light-years from Earth in the constellation Virgo. ...
- About Galaxy > Elliptical.
- About Galaxy > Quasar/Active Nucleus.
21. ISO-SWS Spectroscopy of Arp 220 - A highly obscured Starburst Galaxy
- isowww.estec.esa.nl
- ISO-SWS Spectroscopy of Arp 220 - A highly obscured Starburst Galaxy.
22. Portable and Permanent Landing Lights, Obstruction Lights and Accessories
- www.galaxylitebeams.com
- Welcome to Galaxy LiteBeams, L. ...
- Galaxy LiteBeams produces portable and permanently installed heliport and airport landing lights, and, obstruction, marine and obstacle lights that utilize cold cathode advanced lighting technology. ...
- Galaxy LiteBeams' portable landing lights and neon obstruction lights are certified by the United States Federal Aviation Administration (FAA), and conform to ISO 9000 standards.
- Please browse through our product information below to see the benefits of Galaxy LiteBeams' .
- For more information about our products, please contact Galaxy LiteBeams by emailing us.
- Galaxy LiteBeams Landing Lights Accessories Cold Cathode Obstruction Lights Technical Information Contact Us .
23. Active Galactic Nuclei
- heasarc.gsfc.nasa.gov
- In some galaxies, known as "active galactic nuclei" (AGN), the nucleus (or central core) produces more radiation than the entire rest of the galaxy! Quasars are very distant AGN - the most distant quasars mark an epoch when the universe was less than a billion years old and a sixth of its current size. ...
- X-ray studies are particularly useful in helping us figure out what is going on in an AGN, since they can penetrate from far within the center of a galaxy. ...
24. Pink Rainbow Galaxy - The Gayest of Greetings - About Us
- www.pinkrainbowgalaxy.com
- The stars of Pink Rainbow Galaxy.
- Pink Rainbow Galaxy, Inc. ...
- Pink Rainbow Galaxy, Inc. ... Marino was a national award-winning newspaper journalist for ten years before she decided to point her pen in the direction of Pink Rainbow Galaxy. ...
- Gross creates funky, whimsical designs that capture the essence of what Pink Rainbow Galaxy is all about. ...
- How our galaxy began.
- Pink Rainbow Galaxy was dreamed up in the summer of 2003 while we were on a road trip from Savannah, Georgia, to Myrtle Beach, South Carolina. ...
- We took it as a sign, and Pink Rainbow Galaxy began to emerge.
- After studying it more closely, we knew instantly that Libby’s vibrant, whimsical designs matched perfectly with the spirit of Pink Rainbow Galaxy. ... She was thrilled to be a part of it, and the core of the Galaxy was formed.
- From the beginning, our mission at Pink Rainbow Galaxy has been clear: Providing the world with quirky, quality cards inspired by the gay community, our family, and friends.
- Pink Rainbow Galaxy cards are always tasteful, never tacky.
- At Pink Rainbow Galaxy, we think out of the closet.
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