At its closest approach to earth, shortly before 6 p.m. Timeline of known close approaches less than one lunar distance from Earth. Ross 248 is about 10.3 light-years from Earth in the constellation Andromeda. None are anywhere near the 2029 encounter where Apophis will be close to the geostationary orbit of satellites. Check out our brief video tutorial. Data are not available prior to 1900 A.D. nor after 2200 A.D. Data are further limited to encounters with reasonably low uncertainty.. Today at 10:18 a.m. EDT (1418 GMT), Mars swoops within 38,568,816 miles (62,070,493 kilometers) of Earth, making a smooth close approach. The star is actually moving so fast through space that in about 36,000 years, it will actually take over the title as the closest star to Earth … Barnard's Star was discovered by and named after E. E. Barnard, an American astronomer. The star is about 7-12 billion years old making it older than the Earth's sun. But this particular answer probably won’t change, because astronomers have already found two planets orbiting Proxima Centauri, the closest star to our sun. It is the closest star to the Northern Celestial Hemisphere visible from the North Pole. ET on April 13, 2029, the massive asteroid will cross over the Atlantic Ocean and the United States in a little more than one hour. The following table shows close approaches to the Earth by near-Earth objects (NEOs) limited as selected in the “Table Settings” below. "LB-1 is a bit [farther] away from Earth but still pretty close in astronomical terms, so that means that probably many more of these systems exist. The closest possible encounter is when Earth is the furthest away from the Sun (aphelion) and Mars is the closest to the Sun (perihelion). It was also cataloged by Frank Elmore Ross. Going back to 1600 (the limit the tool is capable of calculating for this object), the closest Apophis encounters was on April 12, 1748, where Apophis was approximately .0068 AU away from earth. The spiral-shaped Milky Way galaxy is enormous and consists of 100 to 400 billion stars including the Sun as one of the stars. A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2021.. For reference, the radius of Earth is about 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 lunar distances. The Earth is a tiny planet on a galaxy known as Milky Way galaxy, which is just one of the many billions of galaxies that form the universe. Video: Newly discovered black hole is closest to Earth Related: The strangest black holes in the universe. Astronomers are finding new exoplanets nearly every day. At this point the two would be at the minimum 54.6 million kilometres (33.9 million miles) apart. 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