The orbit first calculated in 1886 was a parabolaFrancesco de VicoLost periodic comet（54P/Comet Dweko Swift Nite）The situation is similar.U.S.ASchenectadyOfLouis Bosch（Dudley Observatory）It was noted that there was a great difference between the orbits of the two. After further observation, it was considered that it could not be the missing comet de Vico, which was confirmed as comet 15P/Finley.
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In 1899, the regression could not be observed. In 1910, because of the close proximity toJupiterThe orbital period became longer and deviated from the predicted path in 1919, soJapanKyoto ObservatoryOfSasakiWhen it was discovered on October 25, 1919, it was thought to be a new comet, but it was actually a returning comet 15P/Finley.
The brightness of this comet began to decline after 1926, so it disappeared for a period of time, and it was not until 1953 that every return was observed again.
On December 6, 2014, the comet burst, and its brightness increased from 11 to 9, so that it can use a 50mm caliberBinocularsAccording to the observation, the comet and Mars appeared together in the sky after sunset on December 23, only 1/6 degree apart, but the brightness was lower than when it just erupted.On January 16, 2015, the second light turned to 7~8, etcIt is estimated that 15P/Finlay will pass 0.047 AU from the Earth on December 26, 2060.
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In 2007, NASA scientist MaslovInternational Meteor OrganizationHe published a paper in an academic journal of, giving his calculation of the comets that the Earth will likely have a meteor shower before 2100. Although the certainty is not high, the relevant personnel briefly sorted it out and recorded it as follows (the time is Beijing Time)
September 29, 2021 10:30-12:17 Comet Finley 50-120 may be as high as 500 dark meteors
At 10:22 on October 1, 2047, Comet Finley 15-20 may be as high as 400 bright meteors
At 4:49 on October 8, 2047, Comet Finley 70-100 may be as high as 4000 bright meteors
