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What is the Lyrid meteor shower?

The Lyrid meteor shower occurs in the last half of April and is usually most active on April 21 and 22. The Lyrids are associated with Comet Thatcher, which has an orbit of 422 years and last appeared in the sky in 1861. The meteor shower has its radiant in the constellation Lyra. About 20 meteors per hour are expected at the peak. In 2026, conditions for the shower are expected to be good since the Moon will set before the most meteors are expected.