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911-Comet Brightness Explosion
Comet 220P/McNaught orbits the Sun once every 5.5 years on a path which is between Mars and Jupiter. At that extreme distance, more than 1.5 times the Earth’s distance from the Sun, it still receives a significant amount of solar radiation. In 2026 Comet 220P/McNaught had an outburst which caused it to brighten 600 times in about 13 hours and then to continue to brighten to about 8,000 times brighter than in was in its pre-outburst state.
