Tian Xuan, one of the Big Dipper, is the second generation of the Big Dipper. Constellation: beta star Ursa major (Tian Xuan, Giant Gate).
The celestial pole of one of the Big Dipper is the third generation of the Big Dipper. Constellation: Ursa major γ (Scorpio, Lucunxing) Western name: Phecda.
Xuan Ji, the first four stars of Beidou. There are no western names.