At what time of year can you observe Ursa minor in Beijing?

You can see Ursa major all year round in Beijing, because Ursa major is located near the north pole of the celestial sphere, and Polaris is the brightest alpha star in Ursa major, so you can see Ursa major every night for 365 days a year. Stargazing suggests trying Stellarium software, which is very easy to use. By setting the city coordinates and speeding up the time, you can see the stars that can be seen at any time of the year.