We see a semi-sextile in a chart when two planets are 30 degrees from each other. This is one of a number of minor Aspects and, as a result, an orb of influence of only one to three degrees is acceptable.
With the thirty degree separation between the planets in this formation (they are usually but one Sign apart), the semi-sextile is half of a sextile. Even so, this Aspect is not quite as harmonious in tone as a sextile. Further, there tends to be a fated quality to this Aspect.
Semi-sextiles tend to create minor tension. It's not the big message or jarring jolt that's brought forth by an opposition or a square. Rather, there is a niggling sense of something going on underneath the surface which can't quite be placed. Unease is the result, and a sense that something should be done (or that if it were done, all would be better).
This Aspect also has a karmic tie. When two planets are semi-sextiling each other, we need to know that there is a lesson (albeit a small one) to be dealt with and effectively overcome. This lesson may well come to us from our past. Lastly, with this Aspect, there is always that karmic connection. Something is out there, and while we're not quite sure what it is, we just can't seem to break away from it. Is this yet another lesson from the semi-sextile?
