If they performed the journey from Jerusalem to Bethlehem at the time of the third conjunction, December 5, in the evening, as the narration implies, the stars would be some distance east of the meridian, and would seem to move from southeast to southwest, or towards Bethlehem. Their standing over the house we may regard as an additional statement that crept into the narration probably through its repetitions. Such is Kepler's explanation of the Star of Bethlehem. But before he had given this to the world, indeed while he was an infant in his cradle, Tycho Brahe had connected the phenomenon with that of one of the great variable stars of the solar system. The latter astronomer discovered, in 1572, what appeared to be a new star in the constellation, Cassiopeia. It was a star of the first magnitude when first perceived, and daily it increased in brilliancy, till it out-shone Sirius, equaled Venus in lustre, and could be perceived, even by the naked eye, at noonday. For nearly a month the star shone; at first it had a white light, then a yellow, and finally it was a bright red. Then it slowly faded, and in about sixteen months had disappeared. Amidst all the conjecture concerning this remarkable appearance, some regarding it as a new world in process of creation, others as a sun on fire, Tycho Brahe held to the belief, though unable to prove it, that it was a star with a regular period of light and of darkness, caused possibly by its nearness to, or distance from, the earth. When the telescope was invented, forty years later, the accuracy of this theory was known. At the spot carefully mapped out by Tycho Brahe, a telescopic star was found, undoubtedly the same one whose brilliant appearance had so startled the world in 1572. Upon this, astronomers began to study the annals of their science for similar appearances, and found that a very brilliant star had appeared and disappeared near the same spot in the heavens in 1264, and also in 945. The inference was that this star had a period of about three hundred years, and counting back, imagination might place one of its periods of brilliancy very near the time of Christ's birth. For this reason it received the name of the Star of Bethlehem, and many have fully accepted the theory which makes this variable luminary identical with the "Star of the East." This second theory has especial interest just now, for if astronomical calculations are correct, we may look for the reappearance of this remarkable star during the coming year. If it does fulfill the prediction of its return it must be reckoned as one of the most noteworthy phenomena of the century.