Posted on 04/01/2013 2:37:45 PM PDT by blam
Just, wow!
I have a weird question: Growing up twenty years ago, did you remember the sun appearing yellow in the sky? Does it look yellow now, or does it look white to you?
I have a weird question: Growing up twenty years ago, did you remember the sun appearing yellow in the sky? Does it look yellow now, or does it look white to you?
White.
Explains the lingering winter....
But the sun is actually white.
BTW, I took this shot of the sun last year during the planet Venus transit. This was obtained when Venus near maximum transit, taken on 6/5/2012. I used Sun filters in the optical chain which cased the yellowing effect.
However, once the filters are removed, the sun is basically white.
Although I"ve never had good 'blue' vision at all ~ a shortage of blue receptors I suppose, as long as I had my rods intact they made up for most of the color deficiency (the rods overlap the blue cones reception frequencies).
After some serious eye surgery I lost a great deal of my rods in my right eye. That means I no longer have blue vision in much of my right eye, and that means I can't see yellow either!
What you saw 20 years ago may well not have anything to with how you see it today. Add in cataracts, scarification, retinal repairs, and about 753298 different possibilities, and it's amazing we can see anything at all!
poli9tuion=pollution.
Definitely looks ‘off’ in color visually compared to the summers of 1990 and 1991. Less noticeable difference last summer though than the summer of ‘09.
Anyone curious as to how the Sun effects the climate, there is an excellent book called ‘The Chilling Stars’. It explains how it is actually the Sun, more specifically the Heliosphere that impacts the number of Galactic Cosmic Rays reaching the Earth’s lower atmosphere. And how these GCR’s create the building blocks of clouds. Less GCR’s reaching the Earth, means more clouds, greater albedo, and lower temperatures. Fewer GCR’s reaching the Earth, means fewer clouds, and lower albedo, and higher temperatures.
This is another shot I took of the same Venus transit, but without the colored sun filter in the optical chain. It's still not the actual white because of the sun filter itself but resembles that actual color more closely.
BTW, looking closely you can see the "Teardrop" effect of Venus as it initially started it's transition. It's an optical illusion.
Great post! I’m in the middle of reading a book about Captain Kidd in the 1690s and it is mentioned how cold it was in London at that time.
River Thames (London) Frost Fairs
Thames Frost Fair, 1683-84, by Thomas Wyke
They told me not to look at the sun!
Thanks!
Hmmmm. Could be, I mean I just got bifocals a few years ago. If there are any truth to the contrail stories, actually I’m ambivalent on that one, I wonder if that is a factor too.
High altitude contrails are an indication of more moisture in the air at those altitudes.
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