Challenge Yourself! See an Astronomical Event that Only Happens Once Every 26 Years

This artist's impression shows an eclipsing binary star system. Credit: ESO/L. Calçada.

This artist’s impression shows an eclipsing binary star system. Credit: ESO/L. Calçada.

A truly fascinating event may be in the offing this month.

Picture two distant burning embers (candles, light bulbs, LEDs, what have you) circling each other in the distance. From our far-flung vantage point, the two points of light are too faint to resolve individually, but as they pass in front of each other, a telltale dip in combined brightness occurs as one blocks out the other.(…)
Read the rest of Challenge Yourself! See an Astronomical Event that Only Happens Once Every 26 Years (973 words)


© David Dickinson for Universe Today, 2015. |
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