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  2. Star chart - Wikipedia

    en.wikipedia.org/wiki/Star_chart

    Geody Star Charts – Free (CC-by-sa) printer friendly star charts for several latitudes and times of the year; 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 ...

  3. Winter Triangle - Wikipedia

    en.wikipedia.org/wiki/Winter_Triangle

    The Winter Triangle is an astronomical asterism formed from three of the brightest stars in the winter sky. It is an imaginary isosceles triangle [ a ] drawn on the celestial sphere , with its defining vertices at Sirius , Betelgeuse , and Procyon , the primary stars in the three constellations of Canis Major , Orion , and Canis Minor ...

  4. List of stars for navigation - Wikipedia

    en.wikipedia.org/wiki/List_of_stars_for_navigation

    The two brightest northern stars are Vega and Capella. In the star chart to the right, declination is shown by the radial coordinate, starting at 90° north in the center and decreasing to 30° north at the outer edge. Sidereal hour angle is shown as the angular coordinate, starting at 0° at the left of the chart, and increasing counter-clockwise.

  5. 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.

  6. Winter Hexagon - Wikipedia

    en.wikipedia.org/wiki/Winter_Hexagon

    Winter constellations as seen from the tropics Flip book (158 images): Transit of Mars, Sun, Mercury, and Venus in 2017. The Winter Hexagon or Winter Circle/Oval is an asterism appearing to be in the form of a hexagon with vertices at Rigel, Aldebaran, Capella, Pollux, Procyon, and Sirius. It is mostly upon the Northern Hemisphere's celestial ...

  7. Winter solstice 2024: The shortest day of the year is arriving

    www.aol.com/winter-solstice-2024-shortest-day...

    At 4:20 a.m. ET, the solstice will take place, marking "the beginning of winter in the Northern Hemisphere and summer in the Southern Hemisphere," according to NASA.