アトラス彗星（3I/ATLAS）は、太陽系の外から来た彗星です。
The Atlas comet 3I/ATLAS is a comet that came from outside the solar system.
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Since it was discovered in July, it has been observed in various countries.
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Today, the Atlas comet will make its closest approach to Earth, but since it will pass on the opposite side of the Sun, it will still be very far from Earth.
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The distance from Earth to the Atlas comet is about 270 million kilometers.
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By the way, the distance from the Earth to the Sun is about 150 million kilometers.
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The Atlas comet cannot be seen with the naked eye.
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To observe it, you need a large telescope with an aperture of at least 20 centimeters.
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The Italian observatory will stream live footage of the comet on the internet starting at 1 p.m. today.
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If the weather is bad, the broadcast may be postponed by one day.
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Space agencies such as NASA and JAXA will continue to observe Comet Atlas with telescopes and from space over the coming months.
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In November, JAXA observed a comet with an X-ray telescope and discovered that the gas surrounding the comet was emitting X-rays.
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ESA European Space Agency also conducted observations with a high-sensitivity camera in December and released a photo showing that the comet is emitting red X-ray light.
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