Astronomy Magazine

Ring Galaxies

Posted on the 03 May 2011 by Gabe12logan
Ring galaxy is a galaxy, which in form resembles the ring. Ring galaxies are composed of massive, relatively young blue stars that are extremely bright. The central area contains relatively few great matter.
Ring galaxies form when small galaxies collide with a core of spiral galaxies. On the outer edges of the new, combined galaxy formed a powerful ring made up of many stars. Hubble Space Telescope revealed more ring galaxies than scientists expected, indicating the possibility of galactic collisions.
Almost all galaxies have the tendency of gathering in clusters of galaxies. So far there are over 3,000 such clusters. Our galaxy is located in relatively small galactic flock with another 33 galaxies called the Local Group. There are far larger galactic clusters. One of the largest clusters for which we know, lies in the constellation Coma Berenices. It has a flock of over 30,000 galaxies. All of these clusters of galaxies together with all matter and energy makes the galactic group called Metagalaxy. It is assumed that it has about 10 billion galaxies, whose mass is about 10 to 15 solar masses.
Stars and gas clouds orbit the center of the galaxy. Astronomers believe that most galaxies rotate around the black hole, the object which with a large gravitational force attracts everything, even light. Rotation period lasts for more than 100 million years. Space exploration is based on optical surveys. Most of discoveries about the universe came to existence due to hydrogen clouds, which radiate electromagnetic radiation.

You Might Also Like :

Back to Featured Articles on Logo Paperblog

These articles might interest you :

  • Local Group Of Galaxies

    The local group is relatively small cluster of galaxies and our galaxy is a part of local group. It consists of two dozen galaxies, but most are "dwarf"... Read more

    By  Gabe12logan
    ASTRONOMY, SCIENCE
  • Radio Galaxies

    are galaxies that are extremely bright in the radio part of the spectrum. In the majority of detected radio galaxies a strong emission of radio waves was found... Read more

    By  Gabe12logan
    ASTRONOMY, SCIENCE
  • Birthdays in the Netherlands: Friendly Ring Or Circle of Death?

    Birthdays Netherlands: Friendly Ring Circle Death?

    My taking the day off wasn't so much so that I could relax and take some time for myself. I had other things to do...Unlike in the US where you have your party... Read more

    By  Clogsandtulips
    EXPAT, TRAVEL
  • Gargoyle Ring

    Gargoyle Ring

    I found this amazing, HUGE, gothic, gargoyle ring last week in a little Boutique just near Notre Dame in Paris. Notre Dame Cathedral in the heart of the city... Read more

    By  Lauramoodley
    FASHION, LIFESTYLE
  • Only One Contender In The Ring

    Only Contender Ring

    The Republican Party doesn’t have today a single serious contender to face President Obama in 2012, in contrast with the Democrats who in February, two years... Read more

    By  Igoudiaby
    CURRENT, DEBATE, POLITICS, SOCIETY
  • Living in the Ring of Fire - Historic Earthquakes in Santa Barbara

    Living Ring Fire Historic Earthquakes Santa Barbara

    Photo of Matsushima, Japan, 1902 The whole world mourns with Japan for losses unspeakable. Terror ongoing. Tragedy immeasurable. Life is perilous, even in... Read more

    By  Cathyberry
    DESTINATIONS, HISTORY, TRAVEL
  • Fabric Button Ring

    Fabric Button Ring

    BUY IT NOW - ARTFIRE LINKThis beautiful one of a kind ring is made from fabric and buttons. The ring base is made from light green elastic fabric sewed... Read more

    By  Litoshandmadecreations
    ARTS & CRAFTS, HOME

Paperblog Hot Topics

Magazines