Following are the dates for the New Moons of 2009. These are for North America, although there may be some variation in the extreme Southern part of North America.
First Visible Crescent Observed (Fraction of moon illuminated)
January 27 – 4%
February 26 – 6%
March 27 – 4%
April 26 – 6%
May 25 – 5%
June 23 – 3%
July 23 – 6%
August 21 – 5%
September 19 – 3%
October 19 – 4%
November 17 – 3%
December 17 – 3%
New Moon Day
January 28
February 27
March 28
April 27
May 26
June 24
July 24
August 22
September 20
October 20
November 18
December 18
Maimonides and most other Jewish chronologers agree that the modern Jewish calendar is based upon the “mean motions of the sun and moon, the true having been set aside.” (Maimonides, Kiddusch Ha-hodesch, Tr. Mahler, Wein, 1889, emphasis supplied.)
