What constellation is Polaris in _ What constellation is Polaris in?

Which constellation is Polaris in? What constellation does Polaris generally refer to?

In fact, I believe many people have heard of the legend of Polaris. According to the legend, if you lose your way home, you can know the way home just by seeing the brightest star in the sky, because the light of Polaris is particularly bright, so let's go and see which constellation Polaris is in. What constellation does Polaris generally refer to?

Which constellation is Polaris in?

Polaris is located in Ursa minor, about 430 light years away from the earth. It is a star with stable brightness and position that can be seen in the night sky. Because Polaris is closest to true north, people on earth have been navigating by its starlight for thousands of years.

Polaris is a bright star in the northern part of the sky. It is very close to the North Pole of the Earth and almost opposite to the Earth's axis. Seen from the earth, its position is almost unchanged, so it can be used to identify the direction. Due to precession, Polaris is not an eternal star. Now it is alpha Ursa minor, and it will be Vega in the year of 14000.

Polaris is now in the sky, pointing to the north pole of the earth. Therefore, it always seems to be in the northern sky. It is because of its important position that it is famous. In fact, according to the brightness, it is just an ordinary second-class star, belonging to the "younger generation." It is more than 300 light years away from us. Polaris belongs to the brightest star in Ursa minor, also known as Alpha in Ursa minor. China called it "Gouchenyi" or "Beichen" in ancient times. On the constellation diagram, it is on the tip of the bear's tail.

What constellation does Polaris generally refer to?

Polaris, also known as Beichen and Zixing, refers to the star closest to the North Celestial Pole. At present, it refers to "Gou Chen Yi". Polaris is located at the northern end of the earth's axis, which is five times as long as the extension line connecting Tian Xuan and Shu Tian in the Big Dipper. Because the earth rotates, and Polaris happens to be on the axis of celestial rotation, it is still relative to other stars. Polaris is about 434 light years away from the earth and has a diameter of about 52 million kilometers. "Gouchenyi" is actually composed of three celestial bodies: Polaris Aa, Polaris B and Polaris Ab. It was once named Vega, and its name comes from the story of Yan Zi Shi (matriarchal tribal leader) weaving linen clothes in the late Paleolithic period, but now it is called the North Star because it is closest to the north celestial pole. The main star Polaris A is a huge, bright and ancient Supergiant star. Polaris A is six times the mass of the sun, and if it is placed with the sun, its brightness is 2000 times that of the sun.

How big is Polaris?

Polaris is a bright star in the northern part of the sky, very close to the north celestial pole, located at about 0 from the north celestial pole. 7 (in 2004), it is a type F high luminosity star with late spectrum, and its apparent magnitude is 2.02. , 430 light years away, about four times the mass of the sun, is the closest Cepheid variable to the earth. Polaris has a mass of 8 170 tons. Almost opposite the earth axis, from the northern hemisphere of the earth, the position is almost unchanged, which can be used to identify the direction. However, due to precession, Polaris is not a star whose position will never change, and it will be Vega by the year 14000. Every 25,800 years, Polaris will cycle.

For example, during Magellan's voyage, Gouchen I was about 8 degrees from the North Pole, but today, Gouchen I is closer to the North Pole, with an angle difference of only 40'. According to the calculation of earth axis swing and stellar gravity, by 2 100, Gouchen-1 will reach the nearest position directly above the North Pole, only 28' away from the North Pole. So, I gradually hooked up.

Polaris is the brightest star in Ursa minor at present, that is, Alpha in Ursa minor. It is a yellow giant with a spectral type of F, about 434 light years away from the Earth, and its mass is about four times that of the sun. It is a bright star far away from the earth, at the tip of the bear's tail in the constellation diagram. Gou Chenyi is also a star of underworld nature.

Connect a straight line between Tian Xuan and Shu Tian at the front end of the Big Dipper, and then extend the distance five times to Shu Tian. You will meet a bright second-class star, which is Gou Chenyi. This is the easiest way to find Gou Chenyi.