Cycle of the Moon at Birth

Hi

Just looking for a routine to calculate the day of the cycle of the moon on the day you were born from a DTPicker menu

(I have a biorythm program I wrote a few years ago, and would like to add this new facility - but I am getting rusty now )

The result would be a number from 1 - 29 whole numbers.

Not sure how accurate this would be the further you go back (or forward) in history, but would invite anyone to supply some code for this

Thanks

Mike

have no clue have to calculate.
But seach for something i found thise page

http://bodmas.org/astronomy/riset.html

could help someone a little.... maybe

Thanks for that - I will have a look
;)