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"Betelgeuse" and Hubble telescope
August 24 , 2020
1558 days
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- Several ground-based telescopes observed the star, Betelgeuse decreasing in brightness in its southern hemisphere in late 2019.
- This sudden dimming has mystified astronomers, who scrambled to develop several theories for the abrupt change.
- By April 2020, the star returned to normal brightness.
- Now, the Hubble observations suggest a dust cloud covering a portion of the star.
- Betelgeuse, is a star which is about 725 light-years away.
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