These are synastry overlay interpretations for the Sun in the partner’s 8th, 9th, 10th, 11th and 12th houses. (See instead: Sun overlays in 1st–7th houses.)
Sun in 8th House Synastry Overlay
The Sun in the partner’s eighth house of a synastry overlay is not for the faint of heart. This synastry overlay creates a bond between you that is more like a chain with a spiked collar around both of your necks.
The Sun person has been captivated by the eighth house person. As the Sun person, you may feel very unsettled, psychologically, by the house person, and yet you are powerless to leave. There may be something deeply disturbing, dark, or mysterious about the eighth house person. Your instincts may tell you to run, but that only makes you remain fascinated by the house person. They awaken something deep inside you that you never even knew existed. You sense that the eighth house person has the power to transform you. This can be disturbing, and not everyone will enjoy this type of relationship.
It may be that the house person has walked into your life at a time when you (Sun person) have hit rock bottom. The house person, in this case, will be able to help you rise out of your ashes.
The eighth house person feels a strong bond to the Sun person. The house person will not let go of the other under almost any circumstances. There’s a level of emotional dependence here that can be scary for both of you.
The sun in the partner’s 8th house is unsettling for both partners. Both partners initially feel afraid of this relationship, and yet bewitched at the same time. You’re drawn to each other the way people are drawn to watch horror movies. You know you shouldn’t look, but you look anyway. Then, somehow, you enjoy the horror.
Sun in 9th House Synastry Overlay
The Sun in the partner’s ninth house of a synastry overlay means that you share similar world views. You may have similar philosophies on all kinds of things, ranging from how people should dress in public to how the public school system should be run.
You stimulate each other mentally. You teach each other. You influence each other to be more culturally aware. You can work well together in in areas of religion, politics, law, and education.
Your similar views ensures that the two of you will have a great and enduring friendship. This doesn’t mean that you can’t be more than friends. A strong friendship is a great base for marriage.
Sun in 10th House Synastry Overlay
The Sun in the partner’s tenth house of a synastry overlay is powerful because of the effect it has on the perception of the Sun person.
The Sun person sees the tenth house person as someone of authority. You (the Sun) believe that they deserve respect and that they’re a great leader. You accept the house person almost without thinking. You think they know better than you. You think that they see things more clearly than you do. If you argue with each other, you end up thinking they’re right. The house person fits your image of authority and everything right and acceptable in society.
The house person notices and enjoys the respect they receive from the Sun person. Whether or not the 10th house person actually deserves this much admiration would depend on their own birth chart. If the house person is not naturally authoritative, this relationship would boost their leadership skills. In this case, you would very much enjoy the approval of the Sun person. If the house person is naturally an authoritative type, this relationship would simply feel comfortable and like “business as usual.”
This may be a work-related relationship.
Sun in 11th House Synastry Overlay
The Sun in the partner’s 11th house of a synastry overlay creates an atmosphere of friendship between you. Your relationship usually begins as a friendship, or as “friends with benefits.”
In this relationship, you tend to accept a “no strings attached” arrangement from the beginning. The Sun person sees the 11th house person as someone they can hang out with.
With the Sun in the partner’s 11th house, both partners can enjoy a rewarding and hassle-free relationship without a lot of nitpicking. You treat each other in a friendly, non-judgmental manner. Other couples may wonder how the two of you get along so well.
You accept each other’s differences and flaws. You tolerate their idiosyncrasies. Because you create this non-judgmental environment, you both feel free to confide in each other regarding any problems or anxieties that you face.
You are good sounding boards for each other’s pipe dreams — you encourage them rather than put them down.
Even in marriage, you have the tendency to treat each other as friends. This is not a deep, emotional overlay for relationships, but a positive one, nevertheless.
Sun in 12th House Synastry Overlay
The Sun in the partner’s 12th house of a synastry overlay creates an atmosphere of mystery in your relationship.
The Sun person sees the house person as exotic, fascinating, and even other-worldly or strange. You have a strange fascination with the house person that you can’t quite understand since the house person seems so different from you. You are drawn to them, perhaps, out of curiosity. Maybe you desire a strange experience, or to flirt with the unknown.
You (the Sun person) are attracted to the house person almost against your good judgment. The house person is a mystery to you. You can’t read them, you can’t understand the way they think. You find them unpredictable. You think they don’t understand you, nor approve of you.
There is a foggy barrier of confusion over this relationship, and you simply don’t understand each other. The misunderstandings go both ways. It’s as if you each are speaking a different language trying to manage a conversation. You have no idea why you’re together.
Marriage is not impossible with this overlay. (Actually, watch a few sitcoms and it’ll seem like every married couple on TV has this overlay.)
Maintaining this type of relationship would require lots of patience, of course. This is not impossible. It may feel like a sacrifice, but some of the best rewards in life require lots of patience.