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  2. Messier 53 - Wikipedia

    en.wikipedia.org/wiki/Messier_53

    Messier 53 (also known as M53 or NGC 5024) is a globular cluster in the Coma Berenices constellation. [a] It was discovered by Johann Elert Bode in 1775.M53 is one of the more outlying globular clusters, being about 60,000 light-years (18.4 kpc) light-years away from the Galactic Center, and almost the same distance (about 58,000 light-years (17.9 kpc)) from the Solar System.

  3. Stellar population - Wikipedia

    en.wikipedia.org/wiki/Stellar_population

    By definition, each population group shows the trend where lower metal content indicates higher age of stars. Hence, the first stars in the universe (very low metal content) were deemed population III, old stars (low metallicity) as population II, and recent stars (high metallicity) as population I. [6] The Sun is considered population I, a ...

  4. Celestial cartography - Wikipedia

    en.wikipedia.org/wiki/Celestial_cartography

    Star Maps from Ian Ridpath's Star Tales website. The Mag-7 Star Atlas Project; Historical Celestial Atlases on the Web; Felice Stoppa's ATLAS COELESTIS, an extensive collection of 51 star maps and other astronomy related books stored as a multitude of images. Monthly star maps for every location on Earth Archived 2007-09-13 at the Wayback Machine

  5. Star chart - Wikipedia

    en.wikipedia.org/wiki/Star_chart

    An online star chart; Monthly sky maps for every location on Earth Archived 2007-09-13 at the Wayback Machine; The Evening Sky MapFree monthly star charts and calendar for northern hemisphere, southern hemisphere, and equatorial sky watchers. Sky Map Online – Free interactive star chart (showing over 1.2 million stars up to magnitude 12)

  6. Hipparchus star catalog - Wikipedia

    en.wikipedia.org/wiki/Hipparchus_star_catalog

    The Hipparchus star catalog is a list of at least 850 stars that also contained coordinates of stellar positions in the sky, based on celestial equatorial latitude and longitude. [1] According to British classicist Thomas Heath , Hipparchus was the first to employ such a method to map the stars, at least in the West. [ 2 ]

  7. List of nearest stars by spectral type - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest_stars_by...

    Below there are lists the nearest stars separated by spectral type. The scope of the list is still restricted to the main sequence spectral types: M , K , F , G , A , B and O . It may be later expanded to other types, such as S , D or C .

  8. Messier 9 - Wikipedia

    en.wikipedia.org/wiki/Messier_9

    Messier 9 or M9 (also designated NGC 6333) is a globular cluster in the constellation of Ophiuchus.It is positioned in the southern part of the constellation to the southwest of Eta Ophiuchi, and lies atop a dark cloud of dust designated Barnard 64.

  9. Timeline of astronomical maps, catalogs, and surveys

    en.wikipedia.org/wiki/Timeline_of_astronomical...

    c. 300 BC — star catalog of Timocharis of Alexandria; c. 134 BC — Hipparchus makes a detailed star map; c. 150 — Ptolemy completes his Almagest, which contains a catalog of stars, observations of planetary motions, and treatises on geometry and cosmology; c. 705 — Dunhuang Star Chart, a manuscript star chart from the Mogao Caves at Dunhuang