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JAIN JOURNAL
in go vithi in visa vithi in airāvata vithi in gaja vithi and in nāga vithi
after 14 days after 12 days after 10 days after 8 days after 6 days
(BBS. 7.219) (BBS. 7.220) (BBS. 7.221) (BBS. 7.222) (BBS. 7.223)
These data may be put in table No. 2 :
Table No. 2
The BBS Numbers of Days for which Venus Remains Heliacally
Invisible in Different Vithis (Lanes) among the Stars
Sr.
Name of vithis (lanes)
of Venus
Number of days for which Venus remains heliacally invisible during
No.
inferior combustion
superior combustion
aja
1. vai vānara (fire) 2. mrga (deer)
(goat) 4. jaradgava (old bull) 5. go (cow)
(bull) airāyata (chief elephant) 8. gaja (elephant) 9. nāga
(snake)
vrşa
It seems plausible that the phenomena of heliacal combustion, both superior and inferior, had been keenly studied before BBS was compiled. The length of arc of combustion implicitly associated with different vithis (lanes) of Venus, has been measured in numbers of days for which Venus remains invisible therein respectively. It appears that the variations in the time lengths of arc of combustion have been mainly regarded due to changes in the relative mean velocity of heliacally invisible Venus in different parts of the lunar zodiac and such different relative mean velocities of heliacally invisible Venus have been relatively compared with some conventionally known velocities like those of haya (horse), nāga (snake) etc.
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