Calculated according to the solar calendar.
Constellation refers to one of the essential components in astrology and is also a group of star combinations in the sky. Since ancient times, humans have connected groups of stars with characters or objects in their myths, calling them "constellations." Constellations are a means of determining the direction of the sky in almost all civilizations, and are widely used in the field of navigation.
In the three-dimensional universe, these stars do not necessarily have an actual relationship with each other. However, their positions on the celestial sphere are similar, but in fact they may be very far apart. If we were in another solar system in the Milky Way, the starry sky we would see would be completely different.
Extended information:
Identification of constellations
Constellations have been used by sailors and travelers a long time ago as important signs for identifying directions. With the development of science and technology, the role of constellations in direction identification has gradually weakened, but spacecraft still determine their position and heading by identifying bright stars. For starry sky enthusiasts, the identification of constellations is often the identification of bright stars.
In the northern hemisphere, Polaris in the constellation Ursa Minor is the most important basis for determining direction in the starry sky. It can be seen from the celestial coordinate system that the height of Polaris is consistent with the local latitude; but in fact, because Polaris is not bright, people usually use the Big Dipper to find Polaris and determine the direction.
Once Polaris and any other star are identified, the entire sky can be identified entirely by the relative positions of the stars. In order to facilitate memory, people usually use the extended handle of the Big Dipper to look for the Great Horn of Bo?tes (α Bo?tes) and the Spica of Virgo (α Virgo).
Baidu Encyclopedia - Constellations (Astronomy)
Baidu Encyclopedia - Constellations (Astrology)