GLOSSARY ment defined by the breadth of eight barley corns. Acala (³) (1) Seven. (2) Fixed. To make acala in astronomy means to apply the method of successive approxima- tions. Aja () The sign Aries. Ativakra (f) A planet is said to be ativakra when it is in the middle of its retrograde motion. Adri (af) Seven. Adhika-masa (3) Inter- calary month. The Inter- calary months denote the excess of the lunar (synodic) months over the solar months in a certain period. Thus intercalary months in a yuga lunar months in a yuga-solar months in a yuga. A true intercalary month is one in which the Sun does not pass from one sign into the next. Adhikabda (fu) Intercalary year, i.e., a collection of twelve intercalary months. See Adhikamāsa. Adhikāha (³) Intercalary day, i.e., intercalary tithi. 231 Adhimāsa (अधिमास) Intercalary month. See Adhikamasa. Adhimāsaka (अधिमासक) Same as Adhimāsa. Adhimāsaśesa (अधिमासशेष) The residue of the intercalary months. Adhva (ra) The distance of a place from the prime meri- dian. Adhva (ET) Same as Adhva. Adhvana (अध्वान ) Same as Adhva. Anudis (fr) Parallel. Anupata () Proportion. Anuloma (³) Direct. A planet is said to be anuloma when its motion is direct, i.e., from west to east. Antyaguna (T) See Antya- jivā. Antyajiva (अन्त्यजीवा) The cur- rent Rsine-difference, i.e., the Rsine-difference corres- ponding to the elementary arc occupied by a planet. In Hindu trigonometry a quadrant of a circle is divi- ded into 24 equal parts, called elementary arcs. Antyajya (1) Same as Antyajiva.
