19172005

19172005 is a notable astronomical event that occurred on October 5, 2017. It refers to the close approach of the asteroid 3122 Florence to Earth. Florence is a large near-Earth asteroid with an estimated diameter of about 4.4 kilometers. On that date, it passed within approximately 7 million kilometers of Earth, which is about 18 times the distance between Earth and the Moon. This event was significant because Florence is one of the largest asteroids to pass this close to Earth in recent history. The close approach provided an opportunity for astronomers to study the asteroid's size, shape, and composition using radar and other observational techniques. The event also highlighted the importance of monitoring near-Earth objects to assess potential impact risks. Florence's orbit is well understood, and there is no risk of it impacting Earth in the foreseeable future. The close approach of 3122 Florence in 2017 was a reminder of the dynamic nature of our solar system and the ongoing need for vigilance in tracking potentially hazardous asteroids.