When we survive in the wild, we often need a backup compass. However, in the vicinity of magnetically strong mines, or in the absence of a compass, we can guide the road in addition to the sun rising west to east. For this reason, for this constellation, today we continue to see, in which constellation is Polaris in, which galaxy exactly it belongs to!
one, in which constellation is Polaris in
Located in the constellation Ursa Minor, about 430 light-years from Earth, Polaris is a relatively stable star in the night sky in brightness and position. Since Polaris is closest to the north, people on Earth have been navigating with its stars for thousands of years.
Polaris is a bright star in the northern part of the sky, near the Earth's North Pole, almost facing the Earth's axis. Its position remains almost unchanged from the Earth, and the direction can be identified through it. Due to the age difference, Polaris is not an eternal star and is now the constellation Ursa Minor, which will become Vega in 14,000 AD.
Polaris is now very close to the sky pointing to the Earth's North Pole. Therefore, it always seems to be in the northern sky. It is famous precisely because its location is important. In fact, according to its brightness, it is just an ordinary second-magnitude star that belongs to the younger generation. It is more than 300 light-years away from them. Polaris is the brightest star in the constellation Ursa and is also known as Ursa Star. In ancient China, it was known as Gou Chenyi or Beichen. On the constellation graphic, it is at the forefront of the bear's tail.
, in which constellation is Polaris inSpeaking of which, you may want to ask: does the Ursa Minor star always enjoy the honorific title of Polaris?Or, does the North Pole of the Earth's axis of rotation always point to this star?First of all, it should be noted that the Earth's axis of rotation also oscillates slowly and periodically. As a result, the position of the sky towards the north pole of the Earth's axis of rotation naturally changes. It can be seen that the throne of the North Star also has the possibility of taking turns to sit in the Zhuangzi. Astronomers have calculated that 4,800 years ago, Polaris was not the current Ursa Minor, but the Draconi star, known as the Right Pivot in ancient China. At that time, the right pivot received the honor of the North Star. By 1000 AD, that is, in the early years of the Northern Song Dynasty, the sky pointed to by the Earth's North Pole was still 6 degrees away from the North Star Jujube Ursa Minor. North Star