I just found this on astrologyweekly, and I think it's useful to know:Void of Course of Moon
The term VOID OF COURSE refers to the condition of the Moon between the moment it performed the last major aspect with another planet in its current sign and the moment of stepping into the next sign.
The abbreviation of "void of course" is VOC.
No aspects, no events
The old rule is this: "no aspects, no events". It is commonly considered in the traditional astrology that the Moon carries the signification of the upcoming events, but only when she relates to other planets by a major aspect. The nature of the other planet and of the aspect, the position by sign and house of both the Moon and the other planet, will determine the kind of event to expect. When there are no further aspects to perform in Moon's current sign, no relevant events may happen.
Psychological influence
The void of course Moon periods are characterized by inconsistency, a weird feeling of being somehow detached of reality and immersed into the cosmos, into the interplanetary space, floating somewhere among the rings of Saturn or the hoard of asteroids. Evidently, this is very beneficial for the spiritual oriented people who will find this time as most auspicious for their spiritual endeavors.
Benefits of this period
Everyone can benefit from this moments, the void of course Moon periods are truly great for taking a break from the common activities, for relaxing, for listening to music or reading literature, for catching up with house work or other routine activities that do not require much focus.
What not to do during this time
The void of course Moon periods are most unfavorable to do anything that require a specific desired outcome, with a very wide range of actions that include sending emails or faxes, applying for a job or contest, asking for favors, getting married or going out to date someone for the first time, starting a lawsuit or a business, announcing anything, buying important items such as a car, a property, etc.
The basic rule is: when you want something to happen, if you want to be successful, avoid the void of course Moon periods, at all costs.
However, if you wish something not to happen, then choose this moment. Example: suppose that you want to avoid a conflict with someone, but you have to visit him/her, go there during a void of course Moon period.
Technical details
These periods occur every two days and a half, which is the average time of the Moon's passing through a sign. They last usually a couple of hours, the range being from a few minutes to even the entire two days and a half period, when the Moon makes no major aspects to other planets from its current astrological sign.
The void of course Moon period is only interrupted by Moon's aspects to the Part of Fortune (Pars Fortunae), a virtual point calculated by the formula Ascendant+Moon-Sun during the day (from sunrise to sunset) and Ascendant+Sun-Moon during the night (from sunset to sunrise). These ephemeral aspects last usually a few tens of minutes and are "astrologer's honor saviors", as they allow selecting a decent moment for a client to perform an action, during an otherwise negative period for action. Of course, this applies to the positive aspects of the Moon to the Part of Fortune (conjunction, sextile and trine).
William Lilly, a most reputed medieval astrologer, said that when the Moon is void of course in Taurus, Sagittarius, Pisces, and Cancer, it "performs somehow", that is when the Moon currently occupies a sign where a benefic planet (Venus or Jupiter) is exalted or ruler, it can lead to a favorable outcome in selected cases.
Void of course Moon September 2005
2 Sep 2005 11:44 am - 2 Sep 2005 7:55 pm
4 Sep 2005 3:39 pm - 5 Sep 2005 7:51 am
7 Sep 2005 8:32 am - 7 Sep 2005 6:09 pm
9 Sep 2005 7:30 am - 10 Sep 2005 2:02 am
11 Sep 2005 4:52 pm - 12 Sep 2005 6:56 am
13 Sep 2005 6:21 pm - 14 Sep 2005 9:02 am
15 Sep 2005 8:22 pm - 16 Sep 2005 9:24 am
18 Sep 2005 2:00 am - 18 Sep 2005 9:42 am
19 Sep 2005 10:35 pm - 20 Sep 2005 11:47 am
22 Sep 2005 4:41 pm - 22 Sep 2005 5:06 pm
24 Sep 2005 12:57 pm - 25 Sep 2005 2:10 am
27 Sep 2005 1:24 am - 27 Sep 2005 2:02 pm
29 Sep 2005 3:11 pm - 30 Sep 2005 2:44 am
Here is continuation of Article:
First, it is to be mentioned that the void of course Moon occurs very often. This only increases its relevance: every two days and a half there is a void of course Moon period that lasts for several hours. It could be during the working hours, seriously interfering with our daily activities, or it could be during the night with little to no importance at all.
As I'm writing during a void of course Moon I hope that this article will just give you the narration of a first-hand experience with this influence, rather than be a failure by itself.
It is generally known that when the Moon is void of course it is not a good time to start anything because it will eventually fail. It is especially a bad time to plan things, but also to try to reach concrete goals, to materialize ideas.
I think it happens by altering our mental perception. I've noticed many times how the same idea that occurred to me to be great during a void of course Moon period, would seem to be actually to be dull afterwards. Even more, this period seems sometimes to be very prolific in ideas that proved to be very inconsistent and useless.
In time, I've learned not to trust any new idea that came to me during this time. I just check the current astrological chart and keep in mind that the Moon is void of course and postpone any plans and ideas until it is over.
It is not easy to accept that our lives are so greatly influenced by the "stars", but it is wise to accept it and live with it the best we can. I feel that it is very important for us to be very aware of this influence, more than any other transiting astrological influence.
It is all about efficiency. In the time we will learn how to use effectively this period for maintaining operations and other less important activities. Some businesses should even close their doors during this time, if the nature of their activity doesn't allow them to slow down.