"Karlovo srdce", the brightest star of the constellation. This star was named by Edmund Halley on the suggestion of Sir Charles Scarborough, the court physician and physicist, who claimed that the star shone exceptionally brightly on May 29, 1660, when the English king Charles II, the founder of the Greenwich Observatory, returned to London. Another story says that it is the heart of King Charles I, executed on the orders of Oliver Cromwell in the mid-17th century, which made its way to the sky.