It is best to have an exact birth time and at least the city or town where the person was born.If you do not have a birth time, there are definitely ways to go about gleaning accurate information from the chart.
A persons birthchart can also be rectified, meaning that through an interview with that person about specific information in their lives, a well trained professional astrologer can figure out what time they were born.
Geocosmic Valentine
Professional Astrologer
geocosmicvalentine@yahoo.com
: www.myspace.com/geocosmicvalentine
------------------
"Everybody is a star!"
Sly & The Family Stone