pole star


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Pole Star

the. the star closest to the N celestial pole at any particular time. At present this is Polaris, but it will eventually be replaced by some other star owing to precession of the earth's axis

pole star

The star closest to the north or south celestial pole at any particular time. As a result of precession the position of each pole traces out a circle in the sky in a period of about 25 800 years. There is thus a sequence of stars, including Polaris, Vega, and Thuban, that have been and will become again the northern pole star (see illustration). The nearest naked-eye star to the south celestial pole is at present the 5th magnitude star Sigma Octantis. The altitude of the pole star is approximately equal to the local latitude.

Pole Star

[′pōl ‚stär]
(astronomy)
References in periodicals archive ?
Total quantity or scope: The Northern Lighthouse Board vessel NLV Pole Star requires to have the following systems/equipment either upgraded or replaced.
My main theme is that astronomy and the Pole Star played a significant political role in early India too.
Therefore, during measurements at the North Pole with a vertical detector, or with collimator-equipped detectors aimed at the Sun or at the Pole Star in Puschino, that is both detectors cannot depend upon Earth diurnal rotation, there was an absolute synchronism of the histogram shape change with histogram shape changes in Antarctic.
Exploring what astronomic lore has to say about 15,000 BC, in the Paleolithic era when Deneb, the brightest star in Cygnus, was the Pole Star, The Cygnus Mystery probes the roots of the amazing physical and neurological transformation in humanity from beasts to fully conscious and complex psychological beings, a metamorphosis that happened almost overnight in geological terms.
Visitors will also learn how to identify a number of stars and constellations including the Plough, Pole Star, Orion and Sirius.
But he knows a good jumper when he gets his hands on one and his Pole Star merits the utmost respect when he makes his debut over fences in the two-mile Groby Beginners' Chase at Leicester today.
He made all under jockey Richard Johnson on really testing ground to beat Pole Star by half-a-length but the bookies were not that impressed.
Pole Star Journals is to launch two monthly PlayStation titles, Station 2 and Station 2 Solutions.
Clearly, this vision cannot be attained overnight, and will probably never be completely achieved; but it does provide us with a pole star to check the azimuth of our actions.
If we could only learn to recognize it, if we could only hone and refine our sense of the divine, just as we learn to see and distinguish with accuracy the ant on the trunk of the poplar, the Pole Star in Ursa Minor, rain coming toward us on the wind; just as we come to identify the sounds we hear, the voices of our children, the creak of the floor at the lover's footstep, the call of a finch unseen in the top of a pine; just as we can detect and name the scent of cedar or lilac, wild strawberries or river mud and rotting logs.
Polaris, which is also called the Pole Star or the North Star, remains constant and can be seen year-round.
The two stars farthest from the handle point to the North Star (also called the Pole Star or Polaris).