a href="docs/sunMoon.pdf">this pdf document</a>, but precession has to be calculated using the Vondr&#225;k et. al. precession model described in Section 7.2 of the document. The computed TDB times are then converted to UT1 using the method described in Section 8 of the document. Julian days <span class="nowrap">JD(M<sub>i</sub>)</span> of the calendrical conjunctions are calculated using equation (3) above. The resulting times are regarded as the local time. The capitals of Qin and Early Han dynasties were