Closer to Mars

David S.F. Portree

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Closer to Mars

机译：更接近火星

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It's a little past midnight on June 14, 2001, and Mars is a fiery orange dot in the Arizona sky. Tonight, if a line were drawn between Mars and the sun, it would pass through Earth. This geometry, called an opposition, occurs every 26 months. Telescopic observers eagerly await Mars oppositions, because they signal that the Red Planet is near Earth, making it bright in the sky and large in telescopes. Space explorers like oppositions because they are opportunities for Mars flights requiring relatively low energy. In this opposition, Mars is about 42 million miles away—the closest it has been in a dozen years.

机译：2001年6月14日午夜过了一点，火星是亚利桑那州天空中火热的橙色圆点。今晚，如果在火星和太阳之间划一条线，它将穿过地球。这种几何形状称为对立，每26个月发生一次。望远镜观测者热切地等待着火星的反对，因为他们发出信号说红色星球在地球附近，使其在天空中明亮，在望远镜中很大。太空探险家喜欢反对派，因为它们是火星飞行所需的机会，所需能量相对较低。在这场对峙中，火星距离我们约有4,200万英里，是十多年来最接近的一次。

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《Air and Space》 |2001年第4期|p.20|共1页
作者
David S.F. Portree;
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机译：根据maRs 2和maRs 3航天器的数据，maRs非常近邻的磁场

Closer to Mars

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