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  2. Galactic Center - Wikipedia

    en.wikipedia.org/wiki/Galactic_Center

    The Galactic Center, as seen by one of the 2MASS infrared telescopes, is located in the bright upper left portion of the image. Marked location of the Galactic Center A starchart of the night sky towards the Galactic Center. The Galactic Center is the barycenter of the Milky Way and a corresponding point on the rotational axis of the galaxy.

  3. List of nearest galaxies - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest_galaxies

    Picture Galaxy Type Distance from Earth Magnitude Group Membership Notes Diameter (ly) Millions of light-years Mpc M m - Milky Way: SBbc 0.0265 (to the galactic center) [2] 0.008 [2] ...

  4. Milky Way - Wikipedia

    en.wikipedia.org/wiki/Milky_Way

    The Milky Way [c] is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galaxy, which are so far away that they cannot be individually distinguished by the naked eye.

  5. U R Rao Satellite Centre - Wikipedia

    en.wikipedia.org/wiki/U_R_Rao_Satellite_Centre

    The U R Rao Satellite Centre (URSC), formerly ISRO Satellite Centre (ISAC) (Hindi: इसरो उपग्रह केंद्र) is an ISRO centre for the design, development, and construction of Indian satellites.

  6. Virgo Cluster - Wikipedia

    en.wikipedia.org/wiki/Virgo_Cluster

    The Virgo Cluster is a cluster of galaxies whose center is 53.8 ± 0.3 Mly (16.5 ± 0.1 Mpc) [2] away in the Virgo constellation.Comprising approximately 1,300 (and possibly up to 2,000) member galaxies, [3] the cluster forms the heart of the larger Virgo Supercluster, of which the Local Group (containing the Milky Way galaxy) is a member.

  7. Supermassive black hole - Wikipedia

    en.wikipedia.org/wiki/Supermassive_black_hole

    Nevertheless, it is commonly accepted that the center of nearly every galaxy contains a supermassive black hole. [100] The reason for this assumption is the M–sigma relation , a tight (low scatter) relation between the mass of the hole in the 10 or so galaxies with secure detections, and the velocity dispersion of the stars in the bulges of ...

  8. Timeline of knowledge about galaxies, clusters of galaxies ...

    en.wikipedia.org/wiki/Timeline_of_knowledge...

    1918 – Harlow Shapley demonstrates that globular clusters are arranged in a spheroid or halo whose center is not the Earth, and hypothesizes, correctly, that its center is the Galactic Center of the galaxy, 26 April 1920 – Harlow Shapley and Heber Curtis debate whether Andromeda Nebula is within the Milky Way. Curtis notes dark lanes in ...

  9. Galaxy cluster - Wikipedia

    en.wikipedia.org/wiki/Galaxy_cluster

    Composite image of five galaxies clustered together just 600 million years after the Universe's birth [1]. A galaxy cluster, or a cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity, [1] with typical masses ranging from 10 14 to 10 15 solar masses.