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  2. Heavens-Above - Wikipedia

    en.wikipedia.org/wiki/Heavens-Above

    Lists of objects, their brightness and the time and direction to look to see those objects are given. Space stations, rockets, satellites, space junk as well as Sun, Moon, and planetary data are given. The authors also offer a freeware mobile app that shows similar information for the user's location. [2] A ground track from Heavens-Above. An ...

  3. List of satellite pass predictors - Wikipedia

    en.wikipedia.org/wiki/List_of_satellite_pass...

    View satellite position on world map or a simple polar chart showing the path the satellite will take across your sky. [10] ISS Visibility, interface to Heavens-Above, predictions up to 30 days out, ground tracks, star chart with path shown. [11] SkySafari shows alerts for Iridium flares and ISS passes. ISS Detector – shows ISS position. Can ...

  4. Seven heavens - Wikipedia

    en.wikipedia.org/wiki/Seven_Heavens

    A wood carving from 1475, showing 7 celestial bodies. The 5 planets that can be seen with the naked eye, and the Sun and the Moon, each floating in a heavenly layer, the Arabic Felaq in ancient cosmology. In mythological or religious cosmology, the seven heavens refer to seven levels or divisions of the Heavens.

  5. Skalnate Pleso Atlas of the Heavens - Wikipedia

    en.wikipedia.org/wiki/Skalnate_Pleso_Atlas_of...

    The Skalnaté Pleso Atlas of the Heavens (Atlas Coeli Skalnaté Pleso 1950.0) is a set of 16 celestial charts covering the entire sky. It is named after the Skalnaté Pleso Observatory in Slovakia where it was produced. The first versions were published by the Czechoslovak Astronomical Society in 1948; later that year, Sky Publishing ...

  6. Celestial sphere - Wikipedia

    en.wikipedia.org/wiki/Celestial_sphere

    Visualization of a celestial sphere. In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth.All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer.

  7. 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 Map – Free 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)

  8. Northern celestial hemisphere - Wikipedia

    en.wikipedia.org/wiki/Northern_celestial_hemisphere

    A star chart of the entire Northern Sky, centered on the north celestial pole. The northern celestial hemisphere, also called the Northern Sky, is the northern half of the celestial sphere; that is, it lies north of the celestial equator. This arbitrary sphere appears to rotate westward around a polar axis due to Earth's rotation.

  9. Elongation (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Elongation_(astronomy)

    Astronomical tables and websites, such as Heavens-Above, forecast when and where the planets reach their next maximum elongations. Sometimes elongation may instead refer to the angular distance of the Moon relative Earth or the natural satellite of another planet from its central planet, for instance the angular distance of Io from Jupiter.