In article ,
Tom Van Flandern wrote:

Be sure to watch for the black drop effect, which occurs at about
7:06 a.m. from Washington, DC. This is probably the most interesting
transit-related phenomenon. Some authors are calling it "mysterious",
but the explanation has been long known. See the first item under
"Current News" in the ledt column at http://metaresearch.org. -|Tom|-

Check out the images of the Venus transit he

http://vt-2004.kva.astro.su.se/

In particular, check the iamge taken at 11:07 UT --- no black drop
visible there.

These images were taken with the 1-meter Swedish Solar Telescope at
La Palma. Canary Islands. This telescope produces the sharpest
solar images in the world.

Also check the 11:12 and 11:15 UT images carefully: there you can see
another phenomenon although faintly: the part of Venus' limb outside
the solar disk is visible, due to sunlight refracted in Venus'
atmosphere.

--
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