How to tell the direction with stars

Question 1: How to tell the direction with stars in outdoor activities? People in the northern hemisphere can see Polaris, which is facing the north pole of the earth's axis, so even if other stars move from east to west, Polaris does not move (at least it doesn't seem to move much to the naked eye). Therefore, to find the north outdoors, we must first find the North Star. You can find the Big Dipper like a spoon in spring and summer. When the spoon mouth extends two stars, it points to Polaris. In autumn and winter, the Big Dipper is relatively low and difficult to see. At this time, there is a W-shaped or M-shaped Cassiopeia, which has five stars. The outer four inward lines intersect at one point, and the line that extends five times to the star in the middle of Cassiopeia points to the North Star. If you find the North Star, you are the North. Facing north, left west right east, then south.

When there is a full moon, the rising direction of the full moon is the east. Face east, left north and right south, and then west.

The starry sky in the southern hemisphere is completely different from that in the northern hemisphere. There is no Polaris or invivo, but there is a Southern Cross. Shaped like a cross, the cross points to the horizon and used to be south. Facing the south, Zuo Dong is in the west, followed by the north.

Question 2: How to tell the direction according to the stars? The rotation axis of the earth is almost opposite to Polaris, that is to say, no matter where you look on the earth, as long as you can see Polaris, the direction of Polaris is due north.

Ways to find Polaris:

First find the Big Dipper, and connect the two outermost stars of the spoon (Shu Tian, Ursa Major α \ Tian Xuan, Ursa Major β) to extend to the opening direction of the spoon. At a distance of about five stars, there is one star that is not very bright, and that is Polaris. The two stars on the spoon are also called finger stars.

Question 3: How to tell the direction of the Big Dipper with constellations and stars, always facing north?

Question 4: How to look at the stars in the sky? Polaris can be used to tell the direction. Polaris is the best compass, and its direction is due north. The Big Dipper Ursa is like a huge spoon, which is easy to find in the clear night sky. From the direction of the extension line of the two stars next to the spoon, there is a brighter star, the Polaris, which is about five times apart.