Chi

Its story

Chi Carinae is one of the most vital stars in the Keel: a blue subgiant of about seven solar masses, just forty million years old, spinning above one hundred kilometres per second. It was once catalogued as variable, but Hipparcos photometry cleaned its light curve down to a few thousandths of a magnitude. An astrometric companion is still suspected — too discreet to be seen, real enough to bend its path.