火星秋分
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星空有约|11月30日将迎今年“最远火星”
Xin Hua She· 2025-11-28 08:49
Core Points - Mars will reach its farthest position from Earth in the current synodic cycle on November 30, at approximately 2.424 astronomical units, or about 363 million kilometers [1] - The average synodic period between Mars and Earth is about 780 days, during which they experience both the closest and farthest distances [1] - The closest distance Mars can reach to Earth is about 55 million kilometers, while the farthest can exceed 400 million kilometers [1] - The last time Mars was at its farthest position was on October 18, 2023, at a distance of approximately 380 million kilometers, which was farther than the upcoming position [1] Summary of Events - Mars reaches its farthest position from Earth typically around the time of opposition, with the next opposition occurring on January 9, 2026 [2] - Mars shares several similarities with Earth, including a composition primarily of silicate rocks and various geological features such as valleys and ice caps [2] - Mars experiences seasonal changes, including an autumn equinox on November 29, marking the beginning of the dust storm season, which can last over three months [2] - During severe dust storms, wind speeds on Mars can reach up to 180 meters per second, significantly higher than Earth’s category five hurricane winds, although the atmospheric pressure on Mars is less than 1% of that on Earth [2]