What is the stem of B6 12 planet?

Planet B6 12 refers to the planet where the little prince lives. The novel is named after the little prince, who is a mysterious and lovely child. He lives on an asteroid named B-6 12 and is the only resident on that asteroid. The little prince left his planet and traveled in the universe with his beloved rose, and finally came to the earth. In the Sahara desert, the little prince met the narrator of the novel, the pilot, and became good friends with him. In the novel, the little prince symbolizes the hope, love, innocence and childlike wisdom buried in each of us. Although the little prince met many people during his trip, he never stopped thinking about roses. We need to know that the fairy tale "The Little Prince" is only the author's work for three months, but it has a profound creative background, which is the accumulation of the author's life and emotions for several years or even decades, and is the product of accumulation. It is not only a children's fairy tale, but also a "crystallization" of philosophy and thinking, full of feelings about life. Saint Exupery, a tough guy in the eyes of outsiders, has a sensitive and delicate heart and a melancholy and gentle personality. When the author wrote "The Little Prince", he had passed the age of no doubt, experienced several ups and downs in his life, and gradually matured.