lexs4:
Carlos from Spain:
W8MM:
Sunrise (maybe sunset?) while descending to land @ Aeropuerto Internacional de la Ciudad de México.
Cockpit view from right seat of American Airlines 738.
Here is an interesting facts fo think about that image next time one looks at a sunrise. The sun at that moment is actually higher already, that sunrise moment happened aprox 6 minutes ago in reality, and you are looking at the past. The sun light takes about 8 minunes to cover the distance betwen the sun and the earth and reach you eyes, but because the photons slow down when they enter the atmosphere compared to empty space, the light also gets refracted (like when it goes through a diamond or water) half a degree downwards and the sun takes 2 minutes to cover that half of degree so the light you see is 2 minues bellow the horizon, that means that overall the sunrise happened 6 minutes ago. And in the case of the sunset its a 10 minute deleay aprox. So I always find it interesting that that beautiful sight you see is not really there right now.
Also I always find interesting that we all instinctively think of the sun as yellow when I'm fact it's white, but because of the particles in the atmosphere the blue light wavelengths are more easily reflected and scattered away and the light left that reaches us is more predominantly of the opposite side of the spectrum, yellowish. The more atmosphere the sun light has to pass through the more blue is scattered and the closer to orange or even red it appears to us, that is why the sun at noon is closest to white in color and the clouds are completely white not yellow, but the lower it gets on the horizon the more atmosphere it goes through as is hits earth in a tangent and the closer to orange or red it appears, and the scattered blue light in turn is what gives the sky its blue color.
Completely off topic I know but it wouldn't be rennteam otherwise 
To be even more pedantic, the sun emits more green photons than any other and could be considered green…the color white is a lie cause by our brains.
It's peak frequency is green-yellow wavelength but only within the visible part of the electromagnetic spectrum, and t's still seen as white because it emits all the colors and the peak frequency of green-yellow wavelength is to small to make a difference, so it still appears white, so you could say that because we are talking about only "visible" light, what is visible, what you see is what defines the color it has, what our brain/eyes see, so it's not really a lie that it's white in that sense, guess it depends on your definition.
Hoping not to come off as pedantic (again?
) but If we are talking about what frecuency photons it emits more than any other then it's not green either, it emits infrared photons in much higher abundance than green, in fact more than all the visible frecuency photons put together, so in that sense then the sun would be infrared color, but the sun emits photons in the entire electromagnetic spectrum, not just visible light, from the lower frecuency radio waves to highest frequency gamma rays. It all depends which you can see to define it's color, because we cannot see the infrared the sun is white because we only see the visible frecuencies and the visible combine to yield white, but we can still precieve the infrared rays from the sun though since the infrared is responsible for the heat we feel from the sun on our skin, the warmth we feel from the sun is mostly from the infrared radiation it emits.
Other animals (some cold blooded ones) can see infrared so wonder what the sun looks to them? and birds are tetrachromatic because they have an extra fourth cone in the eyes that can see ultraviolet so often wonder what they see? not just UV but because of that extra UV cone they also see more non-spectral colors that we do (we just see magenta) so wonder what how colorful flowers look to them? 
... we need Georgie La Forge's visor
Close
Community
and
