asteroid 2023 BU made one of the closest approaches to Earth on record Thursday, zooming past our planet just over 2,000 miles above the surface.
's Center for Near Earth Object Studies showed that the flyby of 2023 BU was the fourth-nearest of more than 35,000 past and future Earth close approaches in the 300-year period from 1900 to 2200.
As the asteroid flew past our planet, astronomer Gianluca Masi of the Virtual Telescope Project managed to capture some images. The VTP is a service provided by the Bellatrix Astronomical Observatory in Ceccano, Italy, that operates and provides access to robotic, remotely operated telescopes. Stock image: Artist's illustration of an asteroid flying past the Earth. The asteroid 2023 BU made one of the closest approaches to Earth on record Thursday.close and fast asteroid," Masi toldMasi captured the images with the"Elena" robotic telescope unit, which is capable of tracking the very fast motion of asteroids flying past Earth. The images used to create the time-lapse video were captured when 2023 BU was around 13,600 miles above the surface of our planet.
To put 2023 BU's flyby into context, its minimum approach distance was less than 3 percent of the average distance between the Earth and our moon. The asteroid also passed well within the orbits of geostationary satellites, which circle the Earth above the equator at an altitude of around 22,000 miles.
By some definitions, the asteroid even passed through Earth's"exosphere," which may extend 120,000 miles above the Earth. The exosphere is sometimes referred to as the outermost part of the Earth's atmosphere, which gradually merges with the vacuum of space. But the gases in this region are very low in density and many scientists do not consider it to be a true part of the atmosphere.
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