TRANSIT OF VENUS KaAS By Khalid Marwat

June 2004, Rashidabad “This sight...is by far the noblest astronomy affords...” Edmund Halley KaAS observed Next session? This sight...is by far the noblest astronomy affords... -Edmund Halley

Outer planets can never be at inferior conjunction

In 1996, descending Venus just barely missed transiting the sun. For 2004 and 2012, Venus crosses in front of the sun's disk. In 2020, the planet is sufficiently far above the plane of the earth's orbit when it descends to the right of the sun and thus does not transit the sun. Similarly, not until this line of inferior conjunction regresses to the opposite node, after many eight year cycles, will the next pair of transits occur at Venus' ascending node in December, 2117 and 2125.

THERE WERE FIVE CONJUCTIONS IN EIGHT YEARS 5 x 583,917 days = days 2, x 365,256 days = days 2,

Venus is on its ascending node on 9 December, the descending node on 7 June. Almost exactly 243 years held 152 rounds and 395 synodic Venus cycles CYCLEDURATIONMULTIPLERESULT Synodic583, x 583,917 days88,755.4 Earth’s Year365, x 365,256 days88,757.2 Sidereal224, x 224,701 days88,756.9 Frequency is 105.5, 8, and years

Before 1600 there was no telescope ToV, an unobserved phenomenon; Kepler’s Rudolphine Tables in 1627 predicted Kepler died on 15 th Nov and 1639; (not witnessed), most agreeable spectacle 1761 and 1769; Global Expeditions, determination of AU and Black Drop 1874 and 1882; Age of Photography 2004 and 2012; Predominantly an amateur pursuit 2117 and 2125; Far into the future 4,1639 7,1631 6,1882 9,1874 December Transits June Transits 8, ,2117 3,1769 6,1761 6,2012 8,2004

Transit Diagram

Predictions for Karachi External ingress Sun AltInternal Ingress Sun AltGreatest transit Sun AltInternal Egress Sun AltExternal Egress Sun Alt :32:371004:35:465004:53:1454