A natal chart (also known as a birth chart) in astrology can give you insight into your love life and your romantic relationships. What is a natal chart or a birth chart? A natal chart, or a birth chart, is simply a representation of the positions and the placements of the planets and the astrological aspects that were present at the time of your birth. Just as there are astrological placements and astrological aspects that indicate marriage, there are also astrological placements and astrological aspects that can indicate divorce.