________________
JULY, 1983
13
Airavata (Chief Elephant)
(10)
Visa (Bull)
Gaja (Eelephant)
(8)
(12)
90
Näga vithi (Snake lane) (6 days)
75 muhurtas
Aja (Goal) (20)
105
75
Go (Cow) (14)
Mrga (Deer)
(22)
Jaradgava (Old Bull)
(17)
(Fire)
Vals vanara
(24)
* 8199267 Muhūrtas = 360° Fig. No. 1 Vithis (lanes) of Venus, their Zodiacal stretches in muhūrta of arc (1 muhūrta of arc denotes angular distance traversed by moon in one muhūrta or 48 minutes) and numbers of days Venus remains in heliacal inferior combustion in them respectively.
Now arc of combustion (angular stretch with respect to Sun during which the planet remains heliacally invisible) of Venus remains almost constant (see table No. 1) excluding rare cases when geocentric latitude of Venus becomes very high for places at very high latitudes. This mean velocity Vn of Venus in nth vithi during heliacal combustion can be defined as follows :
Dnvdt = K
ó = V.Dn (say)... (1) where K = Constant (total length of arc of combustion). In the integrand, V = Instanteneous relative geocentric velocity of
Venus which is a complicated function15 of position of perigee of Venus
15 See ref. No. 13
Jain Education International
For Private & Personal Use Only
www.jainelibrary.org
