... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . The Geminid meteor shower is the last, and one of the best, major meteor showers of the year. ... Shower meteors appear to come from a point in the sky known as the radiant. ... The number of meteors that may potentially be observed during the maximum of the shower on the evening of the 13/14 December, and from a clear, dark site with no light pollution and little moonlight, can range up to as many as 100 or more per hour. ...

In addition to the four old program units: PROGRAM (that is the main program), SUBROUTINE, FUNCTION and BLOCK DATA , the new concept MODULE has been added, as well as some new things in the old units. ... POSITIVE NUMBERS ASSUMED TYPE(INTERVAL), INTENT(IN) :: A, B TYPE (INTERVAL) :: INTERVAL_MULTIPLICATION INTERVAL_MULTIPLICATION%LOWER = A%LOWER * B%LOWER INTERVAL_MULTIPLICATION%UPPER = A%UPPER * B%UPPER END FUNCTION INTERVAL_MULTIPLICATION FUNCTION INTERVAL_DIVISION(A, B) ! ...