"Science begets knowledge, opinion ignorance.
I am OK with thumbnail, so long as I can magnify. Which I can, as indicated.
I see the "..." in the upper right of the image. It allows a 15kB PNG download file that isn't worth a hoot. I don't see what your mentioning.OK, previous frame is from #18 (copy_
Click on it
Press " . . . "
and and download lower RHS.
Click on download upper RHS
You then get mag glass + option to magnify.
This is all on screen.
Ok, fair enough.Sure, the quality goes off as you magnify. If you start with better quality, you will end up with better. I thought you asked whether low quality could be magnified.
Yes, during sunset's the Sun is always more yellow than at midday. If you do a pin-hole projection of an overhead Sun, you will see that it is white. The difference, of course, is due to the change in the amount of atmosphere sunlight must travel to reach us. Blue light scatters as a fourth power law, so very little atmosphere allows much more blue light to reach us, as in the mid-day Sun. This scattering of blue is why the sky is blue.I think firstly that there appears to me, as I have observed it, that the sun appears yellow to our eyes, at least it does to mine. It seems quite different if I go to an indoor space with white light. Science surely begins with observation.
But all these different colored stars also emit contain all the colors. [This is a common error in logic even made by a surprising number of scientists and journalists who seem to have little interest in getting into the weeds with this topic.]In theory it seems logical that light should contain all colours and therefore be white. But, as I have observed in my astrophotography over the last several years, stars have different colours due to their composition.
Yes, ironically, it will someday actually be a yellow star, before it becomes more red, though Earth residents won't be around to see it.The light from stars, including our sun, changes with time also as we can see in red dwarfs, white dwarfs etc. So our star the sun will not be pure white.
Yes. The key to star color is their surface (photosphere) temperatures. Betelgeuse is much cooler than the Sun, which is much cooler than, say, Rigel, which has a blue tint. All O-class stars are very hot and emit more blue light than the color stars, so all three stars of the Orion belt (since we're in Orion at the moment) appear to have a blue tint to me.Betelgeuse in Orion is a red colour to the eye and other stars are more white or yellow, or red...check some astrophotography images to see if this is true
This is why I think aliens can't seem to find us, per Fermi's Paradox. They are looking for a yellow star in order to find us, and we ain't got one.I guess the real answer from an astronomer’s point of view would be ‘What is the color of the Sun?’ From an astronomer’s point of view with similar eyes on a planet orbiting another star, just as we classify stars from Earth. I guess it would be yellow, even though we perceive white from here.
Earlier in the thread I referred to a yelowish spot of light on the factory floor with the Sun high overhead. I make Procter and Gamble products including Charmin tissue and Bounty paper towels. Been doing so for 49 years in one capacity or another. I was once the youngest manager ever hired by the company, more recently I had the earliest hire date of the 1,700 people on site. Worked as a manager and "out on the floor" on and off from age 21 to age 69.