Nasa eyes on astroid12/9/2023 ![]() ![]() The majority of main belt asteroids follow slightly elliptical, stable orbits, revolving in the same direction as the Earth and taking from three to six years to complete a full circuit of the Sun. The total mass of all the asteroids combined is only 3% that of Earth's Moon. The size of asteroids varies greatly the largest, Ceres, is almost 1,000 km (600 mi) across and qualifies as a dwarf planet. These were named after and are generally identified with carbonaceous, metallic, and silicaceous compositions, respectively. Asteroids are generally classified to be of three types: C-type, M-type, and S-type. ![]() Of the roughly one million known asteroids the greatest number are located between the orbits of Mars and Jupiter, approximately 2 to 4 AU from the Sun, in the main asteroid belt. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter. They are rocky, metallic or icy bodies with no atmosphere. This observatory will be in a place of space between Earth and the sun, where asteroids and meteors coming from that direction are not seen.Images of visited asteroids illustrating their difference: 243 Ida with its moon Dactyl (the 1–2 km sized dot to the right), 433 Eros the first asteroid orbited and landed on (2001) and Ceres, a considerably larger asteroid and dwarf planet 1,000 km across.Īn asteroid is a minor planet-an object that is neither a true planet nor a comet-that orbits within the inner Solar System. This observatory will play the role of an early warning system to detect and monitor any meteor approaching Earth coming from the sun. To counter the threat of this type of asteroid coming from space that blocks the sun’s rays, the European Space Agency will launch its observatory called “NEOMER”, which will orbit with Earth by 2030. ![]() This meteorite exploded in the form of a mass of flame over Russia a decade ago, leaving energy equivalent to 500 thousand tons of explosive “TNT”, which led to two earthquakes around the world. And the first to see this asteroid was the “Atlas of South Africa” observatory, which is a telescopic system dedicated to detecting dangerous asteroids.ĭespite the size of this asteroid, and its great proximity to Earth, it is not considered a threat to Earth, according to what scientists say, who emphasized that the asteroid is dangerous if its diameter is greater than 459 feet and it approaches about 4.65 million miles from planet Earth.Īlthough the asteroid “2023 NT1” passed near Earth without problems, its discovery highlighted that scientists are having trouble detecting some asteroids by looking at the sun’s glare.Īs is the case with this asteroid, the “Chelyabinsk” meteor passed near Earth about a decade ago, without being noticed because of its brightness because the point from which it came was close to the sun. The diameter of “2023 NT1” is about 200 feet, and it moves away from the ground at a speed of about 25,000 miles per hour, which is larger than the Leaning Tower of Pisa, and it is larger than the 60-foot diameter “Chlyabinsk” meteorite, which caused about 1,600 people to be damaged when it entered the Earth’s atmosphere in 2013.Īccording to information from NASA and the International Astronomical Union, “2023 NT1” approached Earth on July 13. An asteroid named “2023 NT1” was able to approach a distance of 62,000 miles from Earth, which is equivalent to a quarter of the distance between Earth and the Moon on July 13.īut NASA scientists were not able to discover it until two days after it approached Earth, because it came from the side of the sun and was obscured by light. The US space agency (NASA) has always been reassuring eyes for watching asteroids approaching our planet, but one of these asteroids managed to slip through without us seeing it. ![]()
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