The placement of Moon in the 9th house of the ascendant chart is quite good, because the 9th house is known as the Dharma/righteousness, luck, destiny, fortune, higher education, spiritual journeys, etc., so it is a benefic house. The 9th house also represents the father (the same way the 4th house represents the mother) of the native.
It is worth recalling that the 1st house, 5th house, and 9th house are known as the trines and are always beneficial no matter what. So, the Moon in the 9th house confers nearly all benefits, luxuries, comforts, wealth, etc. to the native – if She is not afflicted that is.
Moon in the 9th house of the ascendant chart will cause the person to be spiritual and religious as She is a benefic planet. The person may also take interest in spirituality and astrology. Furthermore, the person will also be philanthropic, meaning he/she will spend money generously on charity – but that’s good because it also implies that the person will significant money and assets to make the donations in the first place.
If the Moon is in Her own sign (Cancer) here or in exaltation (meaning that the ascendant is Virgo), the person will gain in nearly every aspect including wealth, friends, comforts, luxuries, etc. because he/she will have the power of destiny.
Additionally, the person’s father is likely to be quite rich or wealthy and also long-lived if Moon is well-placed here, although that also depends on how the Sun is placed in the ascendant’s chart.
The Moon’s placement here in the presence of benefic aspects or conjunctions will further strengthen its powers and make it even more beneficial for the native. However, any malefic influence will cause major damage to the native’s destiny as well as their sense of Dharma or righteousness and they might indulge in harmful or sinful activities as a result.
Except for those points, no other considerations are needed for this house.