Qionghai was about 182 kilometers away from sanya. It would take about 2 hours, 10 minutes to 4 hours to drive from Qionghai to Hainan, depending on the traffic conditions and mode of travel. In addition, they could also choose to take the train from Qionghai Station to Tianya Station, which took about 54 minutes. In general, Qionghai was relatively short distance from Hainan, which was suitable for a day trip or short trip.
The distance between the sun and the earth changed because the earth's orbit around the sun was oval. According to the information provided, the Earth's closest point to the Sun was about 147.5 million kilometers, while the farthest point was about 152 million kilometers. This distance was slightly higher than an astronomical unit, which was the average distance between the Earth and the Sun. According to the International Astronomical Union, the distance between the Sun and Earth was about 149.6 million kilometers, which was 149597870 kilometers. However, this distance was not a fixed value. It changed with the Earth's orbit. Therefore, how far the sun was from the earth was not a simple answer.
Lu 'an was about 140 kilometers away from Huainan. The distance from Lu 'an to Huainan was about 140 kilometers, which took about two and a half hours by car.