enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Messier 13 - Wikipedia

    en.wikipedia.org/wiki/Messier_13

    Messier 13, or M13 (also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules, the Hercules Globular Cluster, or the Great Hercules Cluster), is a globular cluster of several hundred thousand stars in the constellation of Hercules.

  3. Globular cluster - Wikipedia

    en.wikipedia.org/wiki/Globular_cluster

    The first known globular cluster, now called M 22, was discovered in 1665 by Abraham Ihle, a German amateur astronomer. [4] [5] [6] The cluster Omega Centauri, easily visible in the southern sky with the naked eye, was known to ancient astronomers like Ptolemy as a star, but was reclassified as a nebula by Edmond Halley in 1677, [7] then finally as a globular cluster in the early 19th century ...

  4. Arecibo message - Wikipedia

    en.wikipedia.org/wiki/Arecibo_message

    The Arecibo message is an interstellar radio message carrying basic information about humanity and Earth that was sent to the globular cluster Messier 13 in 1974. It was meant as a demonstration of human technological achievement, rather than a real attempt to enter into a conversation with extraterrestrials. [1] [2]

  5. Messier object - Wikipedia

    en.wikipedia.org/wiki/Messier_object

    The Messier catalogue comprises nearly all of the most spectacular examples of the five types of deep-sky object – diffuse nebulae, planetary nebulae, open clusters, globular clusters, and galaxies – visible from European latitudes. Furthermore, almost all of the Messier objects are among the closest to Earth in their respective classes ...

  6. List of largest star clusters - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_star_clusters

    Globular cluster: Nearest globular cluster to the Earth. Also the first globular cluster known to have exoplanets (PSR B1620-26b) Messier 12: 74.4 [28] Messier 70: 68 [29] NGC 290: 66 [30] Open cluster: Messier 28: 60 [31] Globular cluster: Messier 18: 52.4 [32] Open cluster: The following notable star clusters are listed for the purpose of ...

  7. NGC 6207 - Wikipedia

    en.wikipedia.org/wiki/NGC_6207

    NGC 6207 is a spiral galaxy located in the constellation Hercules.It is designated as SA(s)c in the galaxy morphological classification scheme and was discovered by William Herschel on 16 May 1787.

  8. List of globular clusters - Wikipedia

    en.wikipedia.org/wiki/List_of_globular_clusters

    These are globular clusters within the halo of the Milky Way galaxy. The diameter is in minutes of arc as seen from Earth. For reference, the J2000 epoch celestial coordinates of the Galactic Center are right ascension 17 h 45 m 40.04 s, declination −29° 00′ 28.1″.

  9. Stellar population - Wikipedia

    en.wikipedia.org/wiki/Stellar_population

    The Milky Way. Population II stars are in the galactic bulge and globular clusters. Artist’s impression of a field of population III stars 100 million years after the Big Bang. Population II, or metal-poor, stars are those with relatively little of the elements heavier than helium. These objects were formed during an earlier time of the universe.