December 11 , 2021
1109 days
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- Comet A1 Leonard is a long-period comet.
- It was discovered by GJ Leonard in January 2021.
- It was the first comet to be discovered in 2021.
- The comet will pass near the earth on December 18, 2021.
- It is to make its closest approach to the sun in January 2022.
- long-period comet's range is greater than 200 years.
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