View Single Post
  #1441 (permalink)  
Old 25-February-2006, 06:43 AM
Arneb's Avatar
Arneb Arneb is offline
Senior Member
 
Join Date: Jun 2005
Location: Aachen, Germany
Posts: 2,443
Default

Quote:
Originally Posted by Eroica
Simple. When you mentioned lateral thinking, I tried Googling "Paks Venus". The second site mentioned the recent Venus transit and that put eclipses into my head...
Ah. Probably the way to do it. I'd like to point out, however, that the photo itself contains more information than its bland appearance suggests at first.

One thing is that the picture - a bright Venus 15 -20 ° off a full Sun - would probably be impossible. i do not see how you can spot Venus in bright daylight at a distance to the Sun which is only twice the Danjon limit for the Moon when the sun is below the horizon. The calm blue sky does not fit a full Sun either - The relatively small dynamic range of the image gives away the fact that this sun must somehow be severly diminished in brightness.

I like the secon point most, however: As BAUTers, we all know that lens flare can be very informative : In the last flare you actually see the razor-thin ghost image of the Sun. In higher-resolution versions, you also see it in the second one from top, the pink one.

So - it was all there!

Quote:
Originally Posted by Eroica
Irishmen in the Moon
Name nine lunar features named after Irishmen (The person who names the ninth gets the cigar.)
Oh, oh, that means work
__________________
Non sunt multiplicanda entia praeter necessitatem.
Reply With Quote