Castor

A crowded six-star system about 50 light-years from Earth. It forms one of the “heads” of the twins of Gemini, and is Gemini’s second-brightest star, after nearby Pollux.

Radio Programs

The Twins A goodly supply of twins January 26, 2019

Castor A miniature “star cluster” January 7, 2017

Today on StarDate

Diamonds by the ton

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Castor

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