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  2. Polaris - Wikipedia

    en.wikipedia.org/wiki/Polaris

    Polaris is a star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris (Latinized to Alpha Ursae Minoris) and is commonly called the North Star or Pole Star. With an apparent magnitude that fluctuates around 1.98, [3] it is the brightest star in the constellation and is readily visible to the naked eye at ...

  3. Polar alignment - Wikipedia

    en.wikipedia.org/wiki/Polar_alignment

    In the Northern Hemisphere, sighting Polaris the North Star is the usual procedure for aligning a telescope mount's polar axis parallel to the Earth's axis. [1] Polaris is approximately three-quarters of a degree from the North Celestial Pole, and is easily seen by the naked eye.

  4. Pole star - Wikipedia

    en.wikipedia.org/wiki/Pole_star

    Currently, there is no South Pole Star like Polaris, the so-called North Star. Sigma Octantis is the closest near naked-eye star to the south celestial pole, but at apparent magnitude 5.47 it is barely visible on a clear night, making it less useful for casual navigational or astronomy alignment purposes.

  5. Green comet 2023 – live: How to see E3 in sky tonight before ...

    www.aol.com/news/green-comet-2023-live-best...

    This will help you locate the North Star, also known as Polaris, at the end of the handle. ... Green comet sightings hampered by cloud on Wednesday night. Wednesday 1 February 2023 11:39, ...

  6. List of stars for navigation - Wikipedia

    en.wikipedia.org/wiki/List_of_stars_for_navigation

    The star Polaris, often called either the "Pole Star" or the "North Star", is treated specially due to its proximity to the north celestial pole. When navigating in the Northern Hemisphere , a simple and quick technique can be used with Polaris to determine the observers latitude or, for larger maritime vessels can be used to calculate any ...

  7. Celestial navigation - Wikipedia

    en.wikipedia.org/wiki/Celestial_navigation

    A diagram of a typical nautical sextant, a tool used in celestial navigation to measure the angle between two objects viewed by means of its optical sight. Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space or on the ...

  8. The sitcom star hasn't acted on screen since 1996. ... ‘Family Ties’ Star Looks Unrecognizable in Rare Sighting. Devon Forward. February 17, 2025 at 10:08 AM. Tina Yothers, ...

  9. 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 .