Ashwini
Ashwini is the 1st of the 27 nakshatras of Indian astrology. Degrees: 0°00′ Aries–13°20′ Aries. Ruling planet: Ketu. Deity: the Ashvins, the celestial healers. Symbol: a horse's head.
Personality
Speed and the ability to start from scratch. People born under Ashwini pick things up instantly, take on new things easily, and dislike long preparations. They have a pull toward healing in the broad sense: fixing, treating, putting things in order.
Weakness: impatience. What they start gets dropped if the result isn't visible right away.
Ruling Planet and Deity
The ruling planet, Ketu, determines through which period of life the nakshatra's theme unfolds: in the dasha system, it is the ruler of the Moon's nakshatra at birth that determines which period a person's life begins with.
The nakshatra’s deity is the Ashvins, the celestial healers. In the tradition, this deity reveals the nakshatra’s meaning more deeply than a description of character does: it is invoked in rituals connected with this part of the sky.
Each nakshatra is divided into four "padas" of 3°20′, and in Jyotish the pada refines the description. Determining the pada precisely requires the time and place of birth.
Suitable Occupations
Tradition associates the Ashwini nakshatra with the following fields: medicine, emergency services, sports, transportation, anything that requires a quick reaction.
This is not career advice but a description of traditional correspondences. Your nakshatra is determined by the Moon's position, so you need your date, time, and place of birth.
Compatibility
In Kundali Milan, the Indian comparison of charts before marriage, the Moon's nakshatra determines most of the 36 compatibility points: Tara, Yoni, Gana and Nadi are calculated from it, while Varna, Vashya, Graha Maitri and Bhakoot come from the Moon sign.
Separately, the tradition takes "Nadi Dosha" into account: if both partners' nakshatras share the same nadi, the marriage is considered unfavorable. This is one of the most controversial parts of the system, and it is the reason perfectly good matches fall apart in India.