Libra is the sign of balance and balanced judgment, beauty, art, charm, and the social graces. Aries acts. Libra reacts. This is why it needs a partner, someone to get things started. Any planet placed in Libra will demonstrate that sense of balance, swinging from one side to another.
The Sun in Libra: Never tell one of these folks that they aren’t being fair. They tend to get angry with that one. And never argue with a Libra Sun-Sign head on. They will counter your every argument. Just look thoughtful, as if you are listening to their every word. You don’t actually HAVE to listen. Just look that way. With Libra Sun-Signs, it’s the outer form that counts. After they have finished, say "I see you’re point. But ON THE OTHER HAND" (and you must say "on the other hand") "isn’t there another side?" In many cases, they will think for a second or two, and reply, "You’re right, there’s another side" and they will proceed to argue for it and demolish their own point of view. A very fair sign. Balance is the key to understanding Libra. They can be aggressive one day and passive the next, hard at work one month and take it easy the next. And always, that charm, even when they are being shocking, likeLenny Bruce.
The Moon in Libra: needs charming surroundings at home. Not anything gaudy or showy. That would be more Leo. Just charming and in good taste. The women in the life tend to be charming and artistic, but not emotional or nurturing. Remember that little elegant touches appeal to Libra and that the Moon rules emotions. If you are dating someone with a Libra Moon, small touches will activate their emotions. Something like a tasteful card or small gift to show appreciation. They may seem above emotion, but they will feel really hurt if you forget their birthday.
Mercury in Libra: gives an active mind that sees both sides of everything. Libra is the sign of the balance. People with this one can take a long time to reach a decision, and then change it quickly when one new bit of information becomes available. Mercury in Libra people think better with a partner around.
Venus in Libra: is in its own sign. Venus shows what makes us happy, and here in Libra, that means beauty, tasteful surroundings, pleasant intellectual conversation. The negative side is a tendency to be superficial in relationships, ignoring the true character of people as long as they act on the surface with good taste.
Mars in Libra: has the maddening trait of fighting on both sides at once. Mars is supposed to be weak in Libra? Don’t believe it. It just keeps switching sides out of "fairness". A friend of mine has this one. During the Vietnam war, it was a toss-up who he was rooting for at any given time. One day he wanted to bomb Hanoi, the next day, he wanted to bomb the Pentagon (metaphorically of course; he was a peaceful sort). The one thing that gets these people moving in one, and only one direction is an obvious and clear injustice.
Jupiter in Libra: Jupiter shows how we can put all those little facts together, how we get the big picture. Aires will do this fast. Libra tends to take time. It has to balance all the factors. Unless something else interferes, Jupiter in Libra feels secure and safe in partnership situations.
Saturn in Libra: needs a partner in order to feel safe and secure. But it doesn’t have to be a marriage partner, nor does it have to be permanent. They simply need someone around to help them knock around ideas. Since Saturn is also the planet of fear, this placement of Saturn can also give fears with respect to partners. Perhaps, for example, a fear of loosing them or of making a mistake and driving them away.
Uranus in Libra: The planet of "I’ve got to be free" in the sign of partnership produces a generation of folks who tend to need their own space in marriage.
Neptune in Libra: This last happened from 1943 to 1956. That was the time of the "Man in the Gray Flannel Suit", the conformist, the company man. After the Great Depression and World War II, everyone wanted to get back to "normalcy". The illusion of that age was to think that if you don’t rock the boat, everything will be allright. For people born with this placement, there is a love of fairness and justice. Ironically, this generation did rock the boat during the riots and demonstrations of the 1960’s. Most of them were also born with Pluto in Leo, which added fuel to the fire.
Pluto in Libra: gave us a generation (1972 to 1984) that will be obsessed with art. When they grow older and move into positions of power, look for an increase in the art market. They will also be obsessed with fairness, justice, and partnership. Look for the institution of marriage to make a brief comeback, and for a push to reform the legal codes.