In vedic astrology, every placement of planets in different houses and signs affects a person's life in different ways. The 7th house is known as the house of marriage, partnerships, and relationships. When the Moon is placed in this house for Libra ascendant, it can have both positive and negative effects on one's life.
Firstly, it's important to note that when the Moon is placed in the 7th house for Libra ascendant, it is in an enemy sign state because the Moon rules Cancer - a sign that opposes Capricorn which is one of the signs ruled by Libra's planetary lord Saturn. This means that while the moon has an important role to play for individuals with this placement, it may not function at its full potential.
Additionally, it's worth noting that since the Moon also rules over two other houses (10th and 4th), this placement may result in additional duties or responsibilities towards these domains. Thus, even if there are some challenges regarding partnerships and relationships at times due to this placement, this effect could be balanced out by gaining success or accomplishment in professional areas associated with these houses.
On another note, since the Moon is considered to be a natural karaka of happiness and contentment (4th house) as well as motherly affection (the lunar quality), having moon aspecting their first house would result in these qualities being reflected through their home environment, drawing others into their warm embrace where they're well-liked due to their inherent femininity.
Though individuals with Moon in 7th House for Lagna Libra tend to be oversensitive and emotional around love matters which can create conflict easily whether romantic or professional. It’s helpful at such times to focus on creating deeper connections through optimistic feelings of abundance instead of working against perceived threats created by past wounds re-entering consciousness.
In regards to physical appearances such people may often have a very soft and pleasant face, possibly looking like the Moon itself. If aspected by mars, a sharp nose or scar could be evident; if Saturn aspects it, an oddness about their features might appear.
Furthermore, since the 7th house rules marriage and partnerships, this placement may result in a strong desire for attachment due to their strong need for emotional security. While this can lead to kindling deeper connections with compatible people around sexual intimacy, relatives may disapprove of this because the individual does not have much control over their attractions.
In conclusion, when the Moon is placed in the 7th house for Libra ascendant individuals face many challenges such as tumultuous relationships with others due to their natural inclination towards a wavering temperament as they are ever searching for that happy equilibrium between partnership and self-care. It's crucial to remember that understanding how these planetary movements influence us is not always straightforward but can help unveil why certain patterns continue emerging within our lives so we can better prepare we accordingly instead.