The (the Yi Chou winter fourteenth of the month), December 25, 1985, Halley's Comet spectrum photos in China for the first time.

1985 12 25, 2009, the Yunnan Observatory photographed spectrum photos of Halley's Comet. British astronomer and mathematician Halley (Halley, Edmond Halley's Comet (Halley "sComet)) observed and forecast it again regression, hence the name, it is forecasting a return to year comet, which prove that some comet members of the solar system.