The object, which quite serious scientists call a spacecraft, could start from the constellation Cetus.
The Astronomical Journal has accepted for publication an article entitled Plausible home stars of the interstellar object 'Oumuamua found in Gaia DR2. Its authors - a large group of scientists representing several of the world's leading scientific centers (MPIA Heidelberg, JPL, University of Hawaii, Tokyo Institute of Technology, ESA SSA-NEO Coordination Center, Rochester Institute of Technology, Southwest Research Institute, ESO) - estimated the trajectory of Oumuamua … And they tried to determine from where, after all, this first interstellar guest that we noticed could have come to the solar system, whose visit last year greatly aroused astronomers and ufologists and just impressionable citizens.
Let me remind you that the object that invaded the solar system was first detected by astronomers from the University of Hawaii on October 19, 2017. He was moving at a tremendous speed - 87.3 kilometers per second - along a hyperbolic trajectory. And this indicated that the object was flying from some other star system.
The guest was officially recognized as an asteroid - the first interstellar, but it was named very ambiguously, with a clear hint of brothers in mind - Oumuamua. “The messenger who arrived first from afar” means this in Hawaiian.
It soon became clear that Oumuamua's form was not "asteroidal" at all. The object was highly elongated and resembled a cigar, about 10 times its diameter. NASA claims that the object is 800 meters long. Diameter - 80 meters. Its surface is hard, with complex relief, perhaps even metal. In a word, not an asteroid, but some kind of starship.
Oumuamua's shape is not at all asteroidal.
Oumuamua was believed to have come from the constellation Lyra. The authors of the article in The Astronomical Journal questioned this. Using data and images from the Gaia space telescope, they plotted the object's trajectory and looked at which stars it might start from. The most suitable were four stars. It is they who claim to be considered the home star of the "messenger." Most suitable for this role is the red dwarf HIP 3757, which is located in the constellation Cetus 77 light years from the Sun. Another candidate is the Sun-like star HD 292249 from the constellation Unicorn. It is 135 light years away.
The object's trajectory indicated that it came from another star system.
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Calculations show that Oumuamua could have flown from two more places - from the vicinity of the star 2MASS J0233 and the star NLTT 36959. One is located 66 light years from us in the constellation Cetus, the other in the constellation Virgo, 300 light years away. Both stars are also like the Sun.
Astronomers believe Oumuamua took 1 to 4 million years to reach the solar system.
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Gaia is the European Space Agency's space telescope. Launched on December 19, 2013 to provide a detailed 3D map of the distribution of stars in our galaxy. The map will show the coordinates, directions of movement and spectral type of about a billion stars.
The telescope operates in the optical range. Astronomers believe that with its help they will consider not only stars, but also about 10 thousand exoplanets.
Serious scientists do not exclude that Oumuamua could be a spaceship.
BTW
NASA and ESA found Oumuamua accelerated from time to time. In a word behaved like a spaceship
- Our high-precision measurements showed that something else besides the attraction of the Sun and planets influenced the movement of Oumuamua, - these are the words of Marco Micheli from the European Space Agency Space Situational Awareness Near-Earth Object Coordination Center in Frascati, Italy) leads the NASA website.
Marco and his numerous colleagues (17 people) from different countries, including NASA specialists, published an article in the journal Nature entitled “Non-gravitational acceleration in the trajectory of 1I / 2017 U1 Oumuamua”. And they said in it that the "first interstellar asteroid", named Oumuamua, did not fly along a ballistic trajectory, like a projectile fired from a cannon, but from time to time accelerated. Like turning on the engines. And in the end, he moved differently than he followed according to Kepler's laws - the laws of celestial mechanics.
“We found clear evidence that Oumuamua’s trajectory was determined not only by gravity,” echoes colleague Harold A. Weaver from The Johns Hopkins University Applied Physics Laboratory.
Inspired by the revelations of scientists, enthusiasts concluded that Oumuamua was still a spacecraft. What else? Once, he himself periodically accelerated. In other words, NASA and ESA, without knowing it, confirmed the best suspicions …
VLADIMIR LAGOVSKY