Indian Chronology (Solar, Lunar and Planetary): A Practical Guide to the Interpretation and Verification of Tithis, Nakshatras, Horoscopes and other Indian Time-records, B.C. 1 to A.D. 2000 c4.s2.14

c4.s2.14

For 1000 years the movement of the precession is (by the Table in Sec. 284) 16.5 degrees. ∴ 90° Tropical longitude in B.C. 483 corresponded to 90°+16.5°=106.5° Sidereal longitude. By Table XVII-A, after 111 days complete, Sun's sidereal longitude is 107.26°-1.10°=106.16°. For the balance .34 of a degree (106.5°-106.16°=.34°) we may add (by Table XVII-C) .33 of a day. ∴ In B.C. 483 the sun attained 90° Tropical or 106.5° Sidereal longitude at 111.33 days of the Solar year. Since the year commenced on March 10.26, we have, as the day of the Summer Solstice, March 10.26+111.33= March 121.59=(by Table VIII) 29th June. This agrees with Prof. Jacobi's calculation, cited by Dr. Fleet loc. cit.