"The trine from Sun and Venus to the Moon/Uranus/Neptune "
The orb here is so wide I question how effective it might be. It would certainly be helpful.
Hi Elena, I allow a wider orb for the luminaries up to 10 degrees. They are so much wider visibly when you look at them in the sky. They actually take up almost a full 5 degrees of orb visually, the Moon more so at certain times. So that's my thinking and many others agree. Why we have come to this might be argued from a conceptual stance or by actual evidence of influence in charts.
Here is a conceptual argument ( although one that I do not profess to be absolutely certain of):The fact that they are considered two of the three "primary indicators" in a natal chart can't be because of their proximity to earth, since the Sun is further than Mercury, Venus and Mars. There relative impact on us here on earth has much to do with their size in the 360 degree sky and, of course, their ability to generate or reflect light. The Sun may be considered primary because it makes all of life possible on the planet, but astrology in my mind is not about the physical or material realm but essentially about the spiritual, or the meta-physical (beyond the physical)? So the Sun is a giver of physical life, but does not essentially relate to the spiritual realm any more than other planets. Thus its dominance in astrological analysis seems to be a function of its size in our perceived sky relative to other celestial bodies? I am open to discussion on this question of orbs.