To understand the effects of Sun in Aquarius in the 10th house for a Taurus ascendant, we must first look into the nature of the Sun, the role of the 10th house, and the characteristics of a Taurus ascendant. The Sun is a royal planet symbolizing authority, power, and soul. The 10th house represents career, profession, fame, public image, and achievements. For Taurus ascendant individuals, the Sun becomes the lord of the 4th house and is placed in the 10th house in Aquarius, a sign ruled by Saturn, which is an enemy of the Sun. This positioning creates a complex blend of energies.

When the Sun is placed in the 10th house in Aquarius for a Taurus ascendant, it often shows that the native may successfully apply their educational knowledge and academic background into their professional life. However, due to the sign placement in Aquarius, which is inimical to the Sun, the native may also experience significant struggles in their career. They are likely to face intense competition and may lack satisfaction in their professional accomplishments. Despite the internal dissatisfaction, this position of the Sun often brings tangible success and recognition in career, as it is placed in the most powerful Kendra (angular) house and as the 4th lord in the 10th house.

Sun in the 10th house for Taurus rising indicates a strong political mindset. The native may have the inclination and potential to succeed in politics or leadership roles. They may rise to authoritative positions or become heads of institutions. This planetary placement is associated with name, fame, and an impressive public image. Financially, the native may appear prosperous and command respect in society.

However, there may be challenges on the domestic front. The mother of the native may face health issues, and the placement may also suggest concerns related to the father's well-being. Professionally, while there is strong potential for success, the native might frequently face clashes or power struggles with superiors, bosses, or government authorities. They might either work in a government position, with large corporations or MNCs, or receive benefits from authoritative entities, but their journey in such roles may not be without stress.

Aquarius being a sign associated with science, medicine, and innovation, Sun here may also point toward career paths in the medical field, research, or speculative industries like stock markets. The native may be intelligent, quick-witted, and capable of devising effective strategies to earn and grow financially. Still, the Sun’s placement in this air sign can also indicate an overly materialistic mindset and reduced inner contentment.

On the mental and emotional front, the individual may be vulnerable to stress, anxiety, and frustration. There may be a lack of emotional peace and harmony, as the Sun in Aquarius may make the mind restless. Physical health could reflect this internal imbalance too, leading to potential heart issues, abdominal discomfort, or delayed childbirth in some cases.

Despite the emotional challenges, the Sun’s position in Aquarius often brings strong associations with influential people. The native may develop friendships with high-status individuals, especially those connected to politics, administration, or elite networks. Their social circle might include people who are powerful, learned, or hold public office.

Overall, the presence of the Sun in Aquarius in the 10th house for a Taurus ascendant blends ambition with adversity. While there is definite professional potential and opportunities to rise to prominence, the road to success may not be easy. The native may have to constantly battle against dissatisfaction, competition, and authority figures. However, with the Sun placed in a house of power, long-term success is often possible, especially when supported by other positive planetary influences in the birth chart.