Armagh Observatory, 17 January 2000 . Sky watchers will be treated to the first total lunar eclipse of the year on the morning of Friday, 21st January, weather permitting. A total lunar eclipse occurs when the Moon completely enters the dark shadow cast by the Earth. ... The most spectacular part of the eclipse, the total phase, lasts from 4:04 a.m. until 5:23 a.m. when the whole Moon is within the Earth's dark (umbral) shadow. ... Last Revised: 18th January 2000 . ...

A completely new possibility of Fortran 90 is recursion. Note that it requires that you give a new property RESULT for the output variable in the function declaration. ... Here follows two examples, first recursive calculation of the factorial, then recursive calculations of the Fibonacci-numbers. ... The listings of the routines follow, the output variables are called FAC_RESULT and FIBO_RESULT , respectively. ... Not only functions but also subroutines can be recursive. ...