There is no reason for surprise, then, that the information given us concerning the star is, astronomically, so imperfect. We are, indeed, told but two facts concerning it. First that its appearance, in some way or other, informed the wise men, not of the birth of _a_ king of the Jews, but of _the_ King of the Jews, for Whose coming not Israel only, but more or less consciously the whole civilized world, was waiting. Next, having come to Judæa in consequence of this information, the "star" pointed out to them the actual spot where the new-born King was to be found. "It went before them till it came and stood over where the young Child was." It may also be inferred from Matt. ii. 10 that in some way or other the wise men had for a time lost sight of the star, so that the two facts mentioned of it relate to two separate appearances. The first appearance induced them to leave the East, and set out for Judæa; the second pointed out to them the place at Bethlehem where the object of their search was to be found. Nothing is told us respecting the star except its work as a guide. Some three centuries ago the ingenious and devout Kepler supposed that he could identify the Star with a conjunction of the planets Jupiter and Saturn, in the constellation Pisces. This conjunction took place in the month of May, B.C. 7, not very long before the birth of our Lord is supposed to have taken place. But the late Prof. C. Pritchard has shown, first, that a similar and closer conjunction occurred 59 years earlier, and should therefore have brought a Magian deputation to Judæa then. Next, that the two planets never approached each other nearer than twice the apparent diameter of the moon, so that they would have appeared, not as one star, but as two. And thirdly, if the planets had seemed to stand over Bethlehem as the wise men left Jerusalem, they most assuredly would not have appeared to do so when they arrived at the little city. Ingenious as the suggestion was, it may be dismissed as unworthy of serious consideration. Another suggestion shows upon what slight foundations a well-rounded legend may be built. In the year 1572 a wonderful "new star" appeared in the constellation Cassiopeia. At its brightest it outshone Venus, and, though it gradually declined in splendour, it remained visible for some sixteen months. There have been other instances of outbursts of bright short-lived stars; and brief notices, in the annals of the years 1265 and 952 may have referred to such objects, but more probably these were comets. The guess was hazarded that these objects might be one and the same; that the star in Cassiopeia might be a "variable" star, bursting into brilliancy about every 315 or 316 years; that it was the star that announced the birth of our Lord, and that it would reappear towards the end of the nineteenth century to announce His second coming.