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" ... In a new work, astronomers compared the rate of these flickers to the mass of the star, and found that there was a good correlation between the flicker of a star and its surface gravity. Using data from the Kepler spacecraft, they were able to determine the mass of about 30,000 stars with reasonable accuracy. There are, however, limitations to this method. In particularly it only produces reasonable results for stars with a temperature between 4,500 and 7,000 Kelvin. For stars much cooler or hotter than the Sun the method has limited accuracy. However the ease of this method compared to asteroseismical methods still makes it a useful tool. ... "