Halley's comet mostly shines brightly and can be seen with the naked eyes when it is very close to the Earth. The last time this natural spectacle was seen in 1986. The comet is named after Edmund Halley who is 1696 declared that the comets viewed in the years 1531, 1607, and 1682 were the same. Its oval orbit around the sun brings it back to the Earth every 76 years.
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