Exaltation (Uchcha)
Exaltation (uchcha) is the sign where a planet is at its strongest and expresses its best qualities most freely. Each planet has one exaltation sign, with a precise degree of deepest exaltation.
Also known as: uccha, uchch, exalted planet, uchcha graha
Parashara gives the exaltation signs and degrees: Sun in Aries (10°), Moon in Taurus (3°), Mars in Capricorn (28°), Mercury in Virgo (15°), Jupiter in Cancer (5°), Venus in Pisces (27°) and Saturn in Libra (20°). For the Moon and Mercury, he treats only the early degrees as exaltation and the rest of the sign as moolatrikona or own sign.
Rahu and Ketu do not appear in Parashara’s list. The most common view places Rahu’s exaltation in Taurus and Ketu’s in Scorpio; some astrologers use Gemini and Sagittarius instead. Because the schools disagree, your Kundli shows no dignity for Rahu and Ketu.
An exalted planet tends to deliver its significations generously, but it is not automatically good news for every house. Its results still depend on the houses it rules, its company and its condition in the Navamsa. The sign opposite exaltation is debilitation, where the same planet is weakest.