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Binary stars help astronomers determine where we are in the universe

Binary stars
Our galactic Milky Way is surrounded by a group of dwarf galaxies orbiting it. The largest of these galaxies are Magellanic clouds. They are two irregular galaxies, but does determining how far away our cosmic neighbors are precisely defined?

Of course, knowing the distance between us and these galaxies is very important since precise determination is an important vital step in the calculation of Hubble constant, which in turn shows the rate of expansion of the universe as astronomers estimate the Hubble constant through accurate observation of the distance between us and those galaxies. Distances are very precise. You have to know the distance between us and between objects that are closer to us and more precisely.
If the exact distance between us and the Magellan cloud is not determined then the error will be bigger and bigger when determining the distance between us and the far more distant ones. Therefore, the astronomers of the South European Observatory have spent the last decade calculating the distance between us and the Magellanic cloud until they estimated the number "163,000" Light year error rate does not exceed 2% and this develops significantly from any pre-calculations and explained the Southern Observatory how to calculate in the following:

"Astronomers have set the distance to the Magellanic Cloud by using a binary star or an astral system of two nearby stars. They rotate around each other and during the course of course they cross in front of each other and when this happens - as is observed on Earth - The intensity of the light and by tracking the difference of intensity of light carefully and measure the speed of the rotation of the two stars around each other can know the size of the two stars and their mass and information about the orbit, and this information is combined with a measure of the color of the star and total illumination in the precise distance.

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