Tibetan Astro Sciences Dharamsala, India, 1986 1 Basic
Principles The astro sciences of calendar-making, astronomy,
astrology, and mathematics touch many aspects of Tibetan life.
Their tradition spread from Tibet to so-called Outer and Inner
Mongolia, Manchuria, East Turkistan, the Russian republics of
Buryatia, Kalmykia, and Tuva, and all the other areas of Tibetan
cultural influence in the Himalayas, Central Asia, and present-
day China. These sciences play a significant role in the Tibetan
medical tradition. All medical students must study to a certain
level the astro sciences, although astro students are not
required to study medicine. This topic of knowledge presents the
calculations for the ephemeris to give the position of the
planets, as well as those for making the calendar and predicting
eclipses. It also includes the astrological calculations for
personal horoscopes and for the information found in the yearly
almanac concerning which days are auspicious or not for starting
various activities such as