Paul Schlyter wrote:
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.
I don't see any teardrops either. Must be an artifact of the human eye.
I don't think
any pro astronomers ever look thru a telescope to do any real science
anymore.
And if they did, it's probably just to make sure the scope is ready to
photograph
it.
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.