Geography questions.

Wrong answer. Shanghai is to the south of Beijing. No matter what the solar terms are, the days in Shanghai are longer than those in Beijing.

B wrong, Tiangong-1 is certainly not a celestial body, but a man-made target aircraft;

C wrong, the exact time of the autumnal equinox of 201is September 23rd 17: 05.

Since the autumnal equinox, the climate has three main characteristics: the position of direct sunlight continues to move from the equator to the southern hemisphere, and the phenomenon of short days and long nights in the northern hemisphere will become more and more obvious, with shorter days and longer nights;

D Yes, Tiangong-1 flies around the earth, and so does the moon, belonging to earth-moon system.