Differences
There are differences between the natal chart I’m used to and the natal chart calculated by AC. What could the difference be? The most common are:
Moon’s Node
By default the Moon’s true node is shown by AC. There is a choice of True or Mean. The previous chart may be showing a mean node. This setting in AC can be changed – it will affect all charts.
Lilith
By default Lilith’s true position is shown by AC. There is a choice of True or Mean. The previous chart may be showing a mean position. This setting in AC can be changed – it will affect all charts.
Parts/Lots
Part of Fortune and Part of Spirit (POF, POS)
By default POF and POS are calculated differently depending if the chart is a Day of Night chart by AC. There is a choice of Different Day/Night or Fixed. The previous chart may be showing a Fixed position. This setting in AC can be changed – it will affect all charts.