Rank 5 of 12 by demand · 7,720 searches a month
1st house overlay
Their planet in your 1st house: they change how you come across before you decide to change anything.
What this house covers, and how often it fills
This house pairs with the 7th across the chart — partnership as an arrangement — and the two work as one axis. A planet landing here is also, by definition, opposing whatever sits there, so the two readings belong together rather than separately.
It is a angular house, which sits on an axis of the chart, so it is the group most distorted by an inexact birth time. Its natural ruler is Mars, so a partner's mars arriving here doubles the theme rather than adding a new one.
Being angular, it shifts first when the birth time is off. How much →
The 1–7 axis
First impressions and self-presentation sits opposite partnership as an arrangement. A planet in one is automatically opposing the other, so an overlay here is always a statement about both — they change how you come across before you decide to change anything, measured against the pairing reads as a formal partnership, which is what tradition considers the point.