Sun in the 8th house is a potentially malefic placement for the planet in the ascendant chart unless Sun is in its own sign (Leo) or in exaltation (Aries) in which case the Sun will sort-of protect the native and enhance their lifespan.
The Sun in the 8th house will aspect the 2nd house through its 7th aspect, leading to potential communication issues between the person and his/her family as well as loss of wealth.
In their 10th year of age, the native may or may have suffered an injury to their head. The Sun may still result in the native being fond of the opposite gender and potentially having illicit relations with them. If married, the native may have hidden relations with other members of the opposite gender.
The primary issue with Sun being in the 8th house is that it ends up wrecking or ruining the 2nd house due to Sun’s aspect. However, if Sun is exalted in the 8th house, then the damage is not as much and the impacts may even turn positive.
Some notes to consider:
- Sun in own sign (Leo) or exaltation (Aries) – Sun turns benefic for the ascendant in this case, boosting their longevity and protecting against many diseases. The person may also enjoy wealth from their father (as inheritance). The fortunes of the native shall improve and increase, too.
- Sun aspected by benefic – Sun will increase the longevity of the person here and may protect against some accidents or hidden dangers.
- Sun conjunct benefic – similar effects to Sun’s own sign or exaltation status may be achieved albeit to a lesser degree.
In any other case, the Sun will cause or give malefic effects here.