Sabhākaumudī

This Sanskrit manuscript, titled *Sabha Kaumudī*, constitutes a comprehensive treatise on Hindu chronometry and ritual astronomy (*jyotiṣa*) composed by Vāmorinārāyaṇadeva. The text systematically delineates the sixty-year cycle of Jupiter (*bṛhaspati*), intercalary months, lunar and solar reckoning systems, and the astrological determination of auspicious (*śubha*) and inauspicious (*aśubha*) temporal intervals for sacramental rites (*saṃskāra*). Notable features include detailed prescriptions for *tithi* (lunar day) calculation, the differentiation between *cāndra* (lunar), *saura* (solar), *sāvana* (civil), and *nākṣatra* (sidereal) months, and a tabular presentation of intercalation (*malamāsa*) patterns. The work synthesizes dharmic injunctions with calendrical science, reflecting the medieval Indian scholarly endeavor to harmonize ritual practice with precise astronomical computation.