Classification of Rasis — Chara, Sthira, Dvisvabhava
मेषकर्कटकतुलामकराश्चरसंज्ञकाः। वृषसिंहवृश्चिककुम्भाः स्थिराः प्रोक्ताः प्रजापतेः॥ मिथुनकन्याधनुर्मीनाः द्विस्वभावाः प्रकीर्तिताः। एवं राशिलक्षणं सम्यक् ज्ञेयं ज्यौतिषवेदिना॥
Aries, Cancer, Libra, and Capricorn are the movable (chara) signs; Taurus, Leo, Scorpio, and Aquarius are the fixed (sthira) signs; Gemini, Virgo, Sagittarius, and Pisces are the dual (dvisvabhava) signs. Thus the characteristics of the signs should be known by the student of astrology.