Its orbit brought it relatively close to the Earth, within 122 million miles of it.

它的轨道将它带到了距离地球1.22亿英里之内，距离地球相当之近。

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Hartley 2 passed within 11 million miles of Earth on Oct. 20 - the closest it has been to our planet since its discovery in 1986.

10月20日哈特利2号通过地球11万英里的地方-这是自1986年以来发现的离我们最近的星球。

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Mars comes so close to the earth (about 34 million miles) that it will appear the same as the moon.

这时火星离地球如此仅(约3400万英里)，它看起来就像月亮一样。

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The researchers used data from the global network of solar monitoring telescopes (Gong) as well as the Soho satellite positioned in a stable orbit 1.6 million km (a million miles) closer to the Sun than the Earth.

BBC: Sun has strange 'spin cycle'

But during the alignment this summer, they will pass within 34.7 million miles (55.8 million kilometers), thought to be the closest encounter since Cro-Magnon man ruled the Earth.

CNN: Eight-eyed robot blasts off for Mars

Over 300 meters in diameter and weighing 25 million tons, it is set to come within 20, 000 miles of Earth in 2029.

CNN: Space's threat to civilization