What is the constellation of Zhen Xuan in Empresses in the Palace?

Zhen Xuan is a fictional novel, and her historical prototype is Xiaozong Niu, who was born in 1693, 1, Capricorn (November 25th, 31st year of Kangxi) and the daughter of Sipin etiquette officer in Huangqi, Manchuria. At the age of thirteen, he entered the Lama Temple, which is the side of Yin Zhen, the king of Lama Temple. He died on March 2, 777 (23rd day of the first month in the 42nd year of Qianlong) and was buried in Dongling, Thailand. Qiaocheng: Filial piety, kindness, biography of Kang Huidun, Cheng Huiren, Mu, and Empress Sheng Xian.