This science of the Heavens was called by the Germans as Cosmo-Biology. To
them, Cosmo-Biology was the calculus of cosmic interrelatedness. It simply
means the celestial influences on terrestrial affairs as per the principle "
As Above so below ".

Mercury is the smallest planet in the solar system, and the innermost and
his sidereal period is just 88 days. Of all planets, he exhibits the maximum
eccentricity and has the smallest axial tilt. The perihelion of the orbit
of Mercury precesses around the Sun at the rate of 43 arcseconds per century, a
phenomenon explained by Einstein's General Theory of Relativity.

The role of Mercury in Horoscopy

Academic knowledge and degrees are the prerogative of Mercury. Sudhamsu
thanayam prajnam.

Books publishing knowledge mathematics sculpture & arts all come
under his domain. If he be exalted in one's horoscope the native will
become a great scholar. ( Example horoscope is that of Augustus
Caesar who had exalted Mercury in Virgo ).

He represents academic education vidya vijana vanee ganitha lipi kala. He
represents uncles Vidya karaka mathulo bhudha. Amogst the Five Elements he
represents the earth principle- Kshithirapi vachanam jnanam indus thanooja.

Mercury is similar in appearance to the Moon. It is heavily cratered with
regions of smooth plains has no natural satellites and no substantial
atmosphere. He is the Messenger of the Gods Hermes in Western Mythology.
In the Indian He is Budha the academic planet which bestows education and
intelligence. Computers are also ruled by him.

For Mercury

Priyangu Kalika Shyamam
Roopena Prathimam Budham
Soumyam Soumya Gunopetham
Namami Shashinam Sutham

O Son of the Moon and Representer of all academic Knowledge ! My salutations
to Thee !