http://members.tripod.com/~PetraGrail/page5.html
Most previous attempts at determining the birth time were based upon astrology and dating the Star of Bethlehem. No one considered 3 BC because that year had erroneously been assumed to follow Herod’s death. However, Dr. Martin has proven that Herod did not die in 4 BC, but in 1 BC. Scholars are now generally accepting the new chronology for Herod, and this in turn has allowed the confirmation of the New Testament date for the birth of Jesus. Unfortunately, many churches continue to promote the critics’ errors and paganized traditions about the Nativity.
The Star of BethlehemAn oft-missing element in comprehending the story of the Star of Bethlehem is the vital role that astrology played in ancient beliefs about the natural world. Even today, a 1997 poll found that 37 per cent of Americans believe in astrology -- up from 17 per cent in 1976. The doctrine linking celestial events to earthly activities -- "as above, so below" -- influenced all levels of society, from nobility to peasantry, and all forms of activity, from politics and science to medicine and agriculture. Rome at the time of nascent Christianity was no exception.
by Anthony F. Aveni