of Lunar dates – Tithis and their effects on you
Numerology – Part 37
By A. S. Fernando
Although we are now following the Gregorian
calendar, our ancients both in India and Sri Lanka
used the lunar calendar based on the Lunar month
beginning from the New Moon and ending with the Full
Moon. In fact, still we are following the lunar
calendar for religious and astrological purposes.
According to Lunar calendar a date is called
`tithi’. 28 Tithis, the new Moon Day and Full Moon
Day make up the Lunar month.
The duration of each tithi depends on the distance
in degrees between the relative positions of the Sun
and the Moon as viewed from earth. A distance of 12
degrees constitutes one tithi.
When the Moon is waxing – when the distance between
the Sun and the Moon is increasing - we call it Pura
Pakshaya, (Shukla Paksha to Hindus) which is the
bright fortnight of the Lunar month. When the
relative distance between the Sun and the Moon is
decreasing, we call it Ava Pakshaya or Krishna
paksha or the Dark fortnight.
Both the Bright Fortnight and the Dark Fortnight
have 14 tithis each. The 15th tithi in the Bright
Fortnight is called Pasoloswaka or Poornima and the
15th day of the Dark Fortnight Amavaka or Amavasya.