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Its story

Theta Reticuli is a very young southern double: a B9 blue subgiant some 166 million years old, with three and a half times the Sun's mass, paired with a fainter Am sister orbiting at 4 arcseconds and sharing her distance and motion. She lives in Reticulum, a small grid of sky named by Lacaille in the 18th century. At 461 light-years, two points almost fused like drops of mercury.