Fortune Telling Collection - Zodiac Analysis - Where are the stars around the solar system located recently? Like constellations in stars, the spatial position and approximate trajectory of stars around the sun.

Where are the stars around the solar system located recently? Like constellations in stars, the spatial position and approximate trajectory of stars around the sun.

Yes, it takes about 200 million years for the sun to take all the members of the solar system around the center of the Milky Way. But this operation has nothing to do with the constellation. Constellation is the projection of cosmic celestial bodies on the celestial sphere with the radius of 10 parsec (or 32.6 light years), which divides the celestial sphere into different regions and gives them different names. Constellations are measured by area and squareness, not by distance. No matter how the celestial bodies move and where the celestial bodies in the constellation go, the constellation is constant, always occupying a certain area on the celestial sphere, and the relative positions of the celestial bodies in the constellation are changing.

The following figure shows the positions of some stars that are closer to the sun.

These stars have different directions and speeds, but on the whole, like the sun, they all revolve around the center of the Milky Way (which can be regarded as the rotation of the Milky Way), and their relative positions with the sun have not changed much in a short time. The sun travels around the center of the Milky Way at a speed of about 200 km/s, which is only a fraction compared with the speed of light. Compared with the distance of tens, hundreds and thousands of light-years between stars, there has been no obvious change in decades and hundreds of years. If you really need to give a repetition period, it is the cycle of the sun in the Milky Way, more than 200 million years. But even after more than 200 million years, comparing the sky at that time with the sky now, the positions of the stars can't be the same. The reason is that stars move around the center of the Milky Way at different speeds. The rotation of the Milky Way is not rigid, but poor, that is to say, the speed changes with the distance from the center of the Milky Way. The sun revolves around the center of the galaxy and returns to its original position. Some stars haven't come back yet, and some have passed by. So, at that time, it will be another starry sky completely different from now.