Crescent Moon appears at the
end of the 29th day, that month is counted as 29 days. And if it
shows up at the end of the 30th day, the month is counted as thirty
days.
DISCOVERY AND USE OF THE LONGEST ROUND OF THE MOON:
The greatest round of the moon
has been found to consist of two thousand five hundred and fifty years. It has been found to consist of
85 rounds of 30 years each. The reason for its discovery is the 30-year round
used in the construction of the Islamic calendar. Further, the solutions to the
problems that have arisen regarding the sighting of the new crescent moon in
the present era have been suggested by the use of this great period. The
average lunar month used in each 30 years cycle is of 29.5305555 days since
ancient times and is used in contemporary Islamic calendar as well, but the
scientific average value of a lunar month is of 29.5305882 days, therefore, the
Islamic calendar is shortened by one day at the end of the greatest period of
the moon (see the appendix VI of VII).
PERMANENT SOLUTION OF NEW CRESCENT MOON SIGHTING PROBLEM IN
CONTEMPORARY TIMES:
For the past few decades, the
new crescent moon has been difficult to see in all over the world. Research has
revealed that the 40th thirty-year round of the greatest cycle of the moon was
in progress when the Islamic calendar was launched. The average lunar month
used in each 30 years cycle is of 29.5305555 days since ancient times and is
used in contemporary Islamic calendar as well, but the scientific average value
of a lunar month is of 29.5305882 days,
