HALLEY'S PHENOMENON Crossword Clue
HALLEY'S PHENOMENON Crossword Clue
We know 1 solutions for: HALLEY'S PHENOMENON
Crossword Puzzle Infos
Halley's Phenomenon is a COMET that was discovered by Edmond Halley in 1705. It is the only known short-period COMET that is visible to the naked eye and is also the most famous of all comets. The COMET has an orbital period of about 76 years, and it was last seen in 1986. It is expected to return in 2061.