Astronomy: very favorable six-scale system discovered

Astronomy: Very favorable six-scale system discovered

A group of astronomers and astronomers has discovered a system from the same six stars with TiC 168789840 (or TYC 7037-89-1), which in turn consists of three star pairs. Because all three pairs are exactly the case that the stars from our perspective pretend to each other, researchers offer a unique opportunity to explore the system. "The fact that it exists is absolutely breathtaking", said study leader Brian Powell of the New York Times. It is not the first six-scale system, but probably the most exciting.

Allow pracesis quantities

The discovery succeeded with the NASA Space Telescope Tess, which is actually looking for exoplanets. In the collected data, an algorithm then discovered the short brightness fluctuations in the stars that the researchers prompted for more precisely analysis. Like the Goddard Space Flight Center of NASA, from where the study was directed, now explains, these star passages for the scientists are particularly coarse value. They allow particularly precise amounts of coarse, masses, temperatures and distances of the sky corporations involved. For example, the history explores themselves, in the present case, for example, the question of how this system has achieved its exceptional orientation.

How the researchers explain, circle the three star pairs of Tic 168789840 each within a few days. Two of the three pairs circle a common barey center and need about four years for one of these orbits. The third pair is much further away, but revolves with the system of the remaining four stars back a common focus. One of these coarse circulation therefore takes about 2000 years. Each pair consists of a star, which is a little gross as our sun and in about so hot. The partners are always about half as coarse as the sun and come to a third of their temperature.

Exoplanets were not found in the system so far, the scientists still explain. But it could therefore exist anyway only those in that star pair, which is farther away from the other four. The circles thus so close to each other that exoplanets were not survived there. Should there be planets there, the view of the sky would be very busy there. So there was not only two suns, but also the four particularly bright stars, all of which were particularly illuminated every few thousand years. TIC 168789840 is not the only one system from six stars, there are a few other known, everyone advanced Castor in the constellation Twins.

The functioning of Tess

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