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Pole Star It is a name given to the brightest star near one of the poles of the Earth. As it is close to the Earth’s axis of rotation to the point that it is almost fixed, and since it is a little close to the horizon, directions can be known by it (except in areas near one of the poles of the globe, when the pole star is high in the sky). It is one of the most famous stars in the northern part of the globe, and it is 430 light-years away from Earth.

position in the sky[عدل]

It is located within the constellation of the Lesser Bear, as it is the last star in its tail and has a high degree of brightness.

In the past, the Arabs recognized the North Star by the two guides in the Big Dipper. And the two evidences are the two stars, Al-Dabba and Al-Maraq. When we extend a line along Al-Dabba and Al-Maraq, we find the North Pole Star 6 times the distance between Al-Dabba and Al-Maraq. This is illustrated by the animation.

His names in different cultures[عدل]

The ancient Arabs often called it Capricorn, but it was called by other names as well, such as “knee”.^[1] As for the Mayans, they called it the “monkey head”, which is the symbol of the Mayan pole star god. The Indians called him “Dhurva”, which means “steadfast”, in reference to his firmness in the sky. Recently, its approved name in most languages ​​has become “Polaris” in relation to “Pole”, which means “pole” in English.^[2]

star system[عدل]

In fact, the polar star is not a single star, but rather three stars. The polar star (A) is a giant star and emits light that exceeds the light of the sun two thousand times. A dwarf star (Ab) is close to it, and another star is far from it (B), and therefore it forms a triple system that rotates and swims. Great system!

The fact that the North Stars have changed through the ages[عدل]

Many believe that the only North Star over the centuries is the North Star, but the truth is otherwise

The star that indicates the north since 3 thousand years BC was the star of the Serpent in the constellation of the stars of the Dragon, and at the birth of the Prophet Jesus, the star (Anwar al-Farqadin) Kokab in the constellation of the Lesser Bear was the star of the North

Currently, it is the star Polaris in the group of the Lesser Bear as well, but the star Polaris, which is 400 light years away from us, does not currently point to the true north, and it is one degree less, and this star has a small daily movement that confuses air and sea navigation and changes its brightness as a result of interactions The nuclear star inside it, and the star Polaris will be in its rightful place towards the north in the year 2095 AD, after which it will move away from the north, and in the year 7000 AD the star Alderamin in the Cepheus star group will replace the star Polaris, and in the year 14800 AD the eagle star Viga will be in Lyrae constellation Lyre.

See also[عدل]

• North Star
• Ursa Major (constellation)
• Ursa Minor Dwarf Galaxy
• star map
• summer sky

Reference[عدل]

pole star On sister projects:

• Spaceflight portal
• Solar System Gate
• Geography portal
• exploration portal
• Space portal
• Astronomy portal
• navigation portal
• Star Gate

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