How to get to the planetarium by subway from Saite Hotel?

Bus route: Metro Line 2 → Metro Line 4 Daxing Line, the whole journey is about 14.2km.

1. Walk about 870 meters from Saite Hotel to Jianguomen Station.

2. Take Metro Line 2, pass 8 stops and arrive at Xizhimen Station.

3. Take Daxing Line of Metro Line 4, pass 1 station and arrive at Zoo Station (Southwest Exit D)?

4. Walk 240 meters along Xiwai Street and arrive at Beijing Planetarium.