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恒星

参宿四

Betelgeuse

A red supergiant in Orion's shoulder

相关天体 猎户座

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简介

Betelgeuse is one of the largest stars visible to the naked eye: placed at the centre of the Solar System it would extend beyond the orbit of Mars. It is variable, and in 2019–2020 it dimmed sharply, attributed to an ejected dust cloud.

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It will eventually explode as a supernova, but 'soon' in astronomy can mean within 100,000 years.