What is the content of page 12 of the sixth grade science book in 2022?

Explore the universe. Observe the starry sky 1. Description In order to facilitate communication, the International Astronomical Union divides the whole day into three regions called constellations, including Orion, Cygnus, Ursa Major and Ursa Minor. Cygnus Orion chooses several bright stars in the night sky.

Bright stars form a figure to build a "My Constellation". 88 Second, the way to explore Ursa minor 1: first find Ursa minor, and the star is Polaris. Method 2: First find the tail of Ursa Major, and then extend the distance between the two stars in the direction of the spoon mouth. That bright star is Polaris. Polaris Ursa major. Look at the constellations and look for Polaris. The big dipper at the tail of Ursa minor is 5 times 3. Expanded to a "constellation" projector (1). Refer to a constellation and draw its shape on the bottom of the paper cup. (2) Make this constellation with an awl. (3) Put the flashlight into the paper cup and project the "constellation" onto the white wall. (1) Every bright spot in the galaxy is a star. The Milky Way is only a part of the Milky Way. (2) There are stars in the Milky Way, and the sun is just an extremely ordinary star in the Milky Way. (3) The Milky Way and extragalactic galaxies are the universes that can be observed by human beings at present. The sun on the disk of the solar nucleus is more than 654.38+000 billion. On the side of the Milky Way, the front of the Milky Way is 3. Class review. Polaris in Ursa minor is the sun on the face of Ursa major as a projector of constellation. There are more than 654.38+000 billion stars in the Milky Way looking for Polaris. On the Galaxy side, the front of the Galaxy is in-class training.