In Astronomy and in the Computation of Time. the Sexagesimal System is used
Base60 – The Old Shashtiamsa Method
IN Computation of Time
Base 60 – 60 seconds make 1 minute, 60 minutes maketh an hour.
In Astroomy
A Circle or an Ellipse is 360 degrees.
60 seconds of arc make 1 minute, 60 minutes maketh a degree. 30 degrees
maketh a Zodiacal Sign, Rasi and 360 degrees of Arc maketh the Zodiac !
The Sexagesimal Division of a Day.
In Indian Astronomy & Maths, a day is divided by 60 parts.
Each part is called a Nadi or Nazhika.
Sign Deg Min Sec are known is Sanskrit as
Rasi
Bhaga
Kala
Vikala
60 vikalas , secs, maketh a Kala, 1 minute of Arc/
60 Kalas, mins, maketh a Bhaga, one Degree of Arc
30 Bhagas, degrees maketh a Sign.
12 Bhagas constitute the Zodiac, the Bha Chakra, the Jyotis Chakra, the Kala Chakra
Divisions of the Zodiac
360/12 = 30 = Rasi
30/2 = 15 = Hora
30/3 = 10, Drekkana, Decanate
30/8 = 3.75 , Akshamsa
30/9 = 3.33, Navamsa
30/10, = Dasamsa
30/12 = Dwadasama
30/16 = Shodasamsa
30/30 = Trimsamsa
30/60 = Shashtiamsa
Our Western talks in millons. The Oriental talks in lakhs and crores.
Million uses the Base 1000.
1 million = 1000 * 1000 = 1000 ^2
1 billion = 1000^ 3