Word: centauris
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...number of such particles. From these factors Dr. Struve calculates there is not more than one particle of star dust in each 15 cu. in. of interstellar space. If that is so, then all the star dust along the 25-million-million-mile line between Earth and Proxima Centauri, nearest star except the Sun, could be packed in a half-inch cube...
...away that the light from it consumed ten years in reaching the earth. This happened in 1840. Since that time hundreds of stars have had their distance measured similarly, but less than a dozen are known to be nearer than 61 Oygni. The nearest is Alpha Centauri, a star in the southern skies, a little over four "light years" distant. The number of stars whose direct parallax can be measured is very limited...