GLOSSARY OF TERMS ३९३ Unmandala Six o'clock circle, Un mīlana Emersion; the end of total eclipse. Unnata Used for Unnatakala; also for the arc of unnatajya (or altitude). Unnatajyā Rsine of altitude. Also used for Rsin (unnatakdlu + cara), Unnatakala Time elapsed since sunrise in the forenoon or to elapse before sunset in the afernoon. Urwijiva Same as Kujyd. Utkramajyā Riversed-sine. Vaidhrta An astronomical phenomenon which occurs when the sum of the longitudes of the Sun and Moon amounts to 360Ꮙ. Vakra Retrograde Vakrakarna Sighrakarna for the beginning of retrograde mos tion. Vakrakendra Sighrakendra for the beginning of retrograde notion. Vakri A planet in motion. Valana See Akşavalana and Ayana valana. Vallakibhirt The sign Gemini, Varunadik West. Vibheda Same as Bheda-yuti. See Bheda. Vidig-vrta Corner vertical circle; the vertical circle going through a corner direction. Vidik-Sanku Corner altitude, or its Risine. retrograde Vikala Residual arc. Vikala Second of arc. Viksepa Celestial latitude. Villagna Same as Lagna. Villagnakala Same as Lagnakala. Vilambana Sanne as Lambana Vilomajya Same as Utkramaiya. Vimandala Orbit of the Moon or of a planet. Vinnarda Duration of total eclipse. Viparitāh Riversed-sines, Vipray roga Difference. Visikha Celestial latitude, Visnupada(sankranti) The Sun's entry into the signs Taurus, Leo, Scorpio and Aquarius is called Visnupada-sankranti. Vistāra Diameter. Visuvacchaya Same as Palabha. Visu vadyrtta The equator. Vitribha (lagna) That point of the ecliptic which is three signs behind the lagna; the central ecliptic point; the nonagesimal. Vrnda Cube. Vrsa. The sign Taurus. Vrtta Circle; orbit; epicycle. Vyastajyā Riversed-sine. Vyatipata An astronomical phenomenon which occurs when the sum of the longitudes of the Sun and Moon amounts to 180°. Vyomavritta Circle of the sky. Yama A unit of time equal to three hours. Yamya South. Yamyottara (rrtta) The north-south vertical circle i.e. the vertical
