BTW Sun opposition Uranus is on the vertical line in the chart (the MC-IC axis). She divorced the man who made her a star, after alienation.
Her second husband is much younger than her first. Nick Cannon was born October 8, 1980. That is about 30 years younger and he is also 10 years younger than Mariah is. This is her chart with his positions on the outside.
Their Suns don't match. He is a Libra, she is an Aries.
Their Moons match (Sagittarius and Libra)
Their Mercuries don't match (Mercury inconjunct Mercury)
Venus doesn't match with Venus (Aries and Virgo)
Mars doesn't match Mars (Taurus and Scorpio)
So I am afraid that their charts are not very compatible...As they ARE together, there must be other links between them. How about his Saturn on her IC? (Remember her former husband's Saturn inconjunct her MC? Saturn is the ruler of her seventh house of marriage...). And very,very important in the light of her pregnancy (announced yesterday, see date of this post) is:
HIS CERES ON HER ASCENDANT
Ceres is the symbol of motherhood, genes and seed. And there is more...
His Pluto is also quindecile her Sun. His Pluto is opposition her Venus. That is about fascination, 'a spell'....His Venus is inconjunct her Midheaven, perhaps for disproportional adoration:) So no matching signs (and different views, ideas and tastes) but fascination instead. The combiation of her Sun/Moon with his Neptune contributes to a romantic idea. Maybe they are each other's 'muses' (romantic inspiration).
Husband Nick has indications for possible divorce: Mars conjunct Uranus and Moon-Saturn. It doesn't mean he hás to divorce, but it is a risk. Perhaps the reflection of unstable relationships mirrors the called off engagement with Salita Ebanks? Here is Mariah's chart with Nick's positions:
The Capricorn Descendant seems to indicate the age differences (and difference in status) between her and her husbands.