flown very close to the Earth on October 31 an object called 2015 TB145. Shortly before he was discovered with a telescope Pan-STARRS I, located in Hawaii. Then specialists of the National Department of Aeronautics and Space Administration (NASA) have been able to clarify the physical characteristics of the celestial body.
The new knowledge obtained through the 2015 TB145 data Hawaiian Infrared Telescope Infrared Telescope Facility and the Puerto Rican Observatory Arecibo (Arecibo). It was found that the celestial body has a spherical shape and up to 600 meters in diameter. A complete revolution around its axis it makes for five hours. Its surface reflects about 6% of sunlight. For a typical comet, this figure is about 3-5%. However, since a celestial body has no coma (a cloud of dust and gas surrounding the nucleus), the experts concluded that the object is dead comet.
As expected, the evening of October 31, 2015 TB145 flying at a distance of 486,000 kilometers from the Earth’s surface (1.3 lunar distances) without causing any harm to our planet. The next time will be a dead comet near Earth in September 2018. The distance in this case is 38 million kilometers (this is comparable to a quarter of the distance from Earth to the Sun). NASA astrophysicists argue that at least in the next few hundred years 2015 TB145 hazard to earthlings is not.
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