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South
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EPIGRAPHIA INDICA
sun 51º 2ʹ 52″.[1] And his heliacal rising after the conjunction took place before sunrise of either
the 25th May,[2] when his true longitude was 54º 21ʹ (while that of the sun was 64º 23ʹ 35″),
or the 26th May, when his true longitude was 54º 35ʹ (while that of the sun was 65º 20ʹ 31″).
Whichever of the two days may be absolutely correct, it is clear that before sunrise of the
25th or the 26th May A.D. 518 Jupiter─ since his true longitude in either case was more than
53º 20ʹ─ by all three systems of the nakshatras rose heliacally in the nakshatra Mṛigaśiras, and
that therefore the year which then commenced was a Mahâ-Mârgaśîrsha year. That year of
course included both the 15th September and the 15th October A.D. 518 ; for Jupiter’s next
conjunction with the sun only took place some time before sunrise of the 17th June A.D. 519,[3]
and his next heliacal rising about the 1st July A.D. 519,[4] when a Mahâ-Pausha year commenced. I may add that, according to Mr. Dikshit’s calculations, a Mahâ-Mâgha year commenced on the 3rd August A.D. 520, and a Mahâ-Phâlguna year on the 4th September
A.D. 521.
The result is that the month Kârttika of the Gupta year 199 which is quoted in the date
must have fallen in A.D. 518, and that the date probably corresponds to Monday, the 15th
October A.D. 518, but may possibly correspond to Saturday, the 15th September A.D. 518.
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[1] The calculations which have yielded the above results have all been made according to the Sûrya-siddhânta
By the Ârya-siddhânta, at mean sunrise of the 11th May A.D. 518 the true longitude of Jupiter was 51º 43ʹ, and
that of the sun 51º 4ʹ 18″ ; and at mean sunrise of the 12th May A.D. 518 the true longitude of Jupiter was 51º 57ʹ,
and that of the sun 52º 1ʹ 36″. This shows that, according to the Ârya-siddhânta, the conjunction would have taken
place between one and two hours before mea sunrise of the 12th May A.D. 518.
[2] At mean sunrise of the preceding day, the 24th May A.D. 518, the true longitude of Jupiter was 54º 3ʹ, and
that of the sun 63º 26ʹ 38″.
[3] At mean sunrise of this day the true longitude of Jupiter was 85º 33ʹ, and that of the sun 85º 58ʹ 33″.
[4]At mean sunrise of this day the true longitude of Jupiter was 88º 45ʹ, and that of the sun 99º 18ʹ 3″.
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