The composition of Walking in the Starry Sky is in that book.

On a beautiful night, my father and I went for a walk. In the small garden, I lay on the stone bench and looked up at the sky. I first saw a few little stars, which appeared and disappeared, just like shy little girls. Soon, seven bright stars arranged in the shape of spoons appeared in the northern sky. My father told me that it is the Big Dipper, which can show people the way at night. At this time, the little stars seemed to hear the call of the Big Dipper, and the sky was suddenly covered with red, orange, yellow, green and blue. It's like a shiny little lantern, a diamond set in the dark, very beautiful!

Looking at the colorful stars, I asked my father, "Why are their colors different?" Dad told me: "The color of the star is different because its surface temperature is different. The higher the temperature of the star, the more blue light it emits, and it seems that the star is blue. " If the temperature of this star is very low, there are many red components in the light it emits, and it looks like a red star. "

"These stars are touching fairy tales," my father continued. "It is said that the jade emperor has seven daughters. One day, they came to the hot spring to take a bath. Just as they were having fun, a naughty sparrow came to the door of a cowherd in Niujiazhuang with a fairy's dress. Cowherd found the fairies and returned her clothes, and they fell in love from then on. When the Queen Mother knew about this, she pulled a silver hairpin from her head and threw it between the Cowherd and the Weaver Girl. The silver hairpin suddenly became the Milky Way, and the Cowherd and the Weaver Girl became two constellations. On the seventh day of July every year, magpies will set up a magpie bridge on the Milky Way to meet each other. But in fact, the two stars are separated by 16 light years, so it is impossible to meet.