, as he
considered the earth too heavy and sluggish to move, and also that the
authority of Scripture was against such an hypothesis. He therefore
assumed that the other planets revolved about the sun, while the sun,
moon, and stars revolved about the earth as a centre. Geometrically this
is much the same as the Copernican system, but physically it involves
the grotesque demand that the whole system of stars revolves round our
insignificant little earth every twenty-four hours. Since his previous
small book on the comet, Tycho had evidently considered more fully its
possible astrological significance, for he foretold a religious war,
giving the date of its commencement, and also the rising of a great
Protestant champion. These predictions were apparently fulfilled almost
to the letter by the great religious wars that broke out towards the end
of the sixteenth century, and in the person of Gustavus Adolphus.

King Frederick's death did not at first affect Tycho's position, for the
new king, Christian, was only eleven years old, and for some years the
council of regents included two of his supporters. After their deaths,
however, his emoluments began to be cut down on the plea of economy, and
as he took very little trouble to carry out any other than scientific
duties it was easy enough for his enemies to find fault. One after
another source of income was cut off, but he persevered with his
scientific work, including a catalogue of stars. He had obtained plenty
of good observations of 777 stars, but thought his catalogue should
contain 1000 stars, so he hastily observed as many more as he could up
to the time of his leaving Hveen, though even then he had not completed
his programme. About the time that King Christian reached the age of
eighteen, Tycho began to look about for a new patron, and to consider
the prospects offered by transferring himself with his instruments and
activities to the patronage of the Emperor Rudolph II. In 1597, when
even his pension from the Royal treasury was cut off, he hurriedly
packed up his instruments and library, and after a few weeks' sojourn at
Copenhagen, proceeded to Rostock, in Mecklenburg, whence he sent an
appeal to King Christian. It is possible that had he done this before
leaving Hveen it might have had more effect, but it can be readily seen
from the tone of the king's unfavourable reply that his departure was
regarded as an aggravation of previous shortcomings. Driven from Rosto