Only six transits of Venus are known to have been observed by humans in 1639, 1761, 1769, 1874, 1882 2004.
[I reckon Mayans must have used a pinhole in a leaf... they knew Venus better than Spaniards did]
..Venus..round black spot with a diameter.. 1/32nd of the sun...
..entire transit (all four contacts) is visible from .. New Zealand.
gsfc
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External Sun Internal Sun Greatest Sun Internal Sun External Sun (UT)
Ingress Alt Ingress Alt Transit Alt Egress Alt Egress Alt
Auckland 22:15:25 24 22:33:27 25 01:29:01 28 04:25:08 7 04:43:17 4
10am? 1pm? 4pm?
Next Transit of Venus 2117CE
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2012 Centenaries:
Alan Turing, Lawrence Durrell, Jackson Pollock, Gene Kelly, Gil Evans, Milton Friedman, John Cage, Woody Guthrie
Vitamins, Wilson cloud chamber