The color of the Sun is yellow as expected by it’s spectral class of G2. But would it give it a hint of blue in the hotter central region. The Sun has an effective surface temperature of 5780 K, which is equivalent to just under 10,000 F and 5500 C. The core of the Sun has a density almost 150 times the density of water on Earth. is 501.6 nm (5016 Angstroms). This has shrunken the Sun’s heliosphere which helps protect the earth from cosmic radiation. In fact, it happens pretty slowly. So yes, Betelguese would look a lot different if it was close enough. Gonzobot, I see no reason to always represent the Sun in a color it is not. If you add a bit of blue to green, you will get something our eyes interpret as a tint of blue, and when you add something from the red side – you get yellow. This produces an almost flat distribution across the visible spectrum. (Canopus) while none of the highest ranking are blue-white,at least as far as I can tell from observation and table study. I’ve heard in other places that the sun is yellow because of its position in the Hertzsprung-Russell (H-R) Diagram. I beg to differ. In fact, we are so accustomed to the idea of a yellow-colored Sun that astronomers often artificially alter the images of our white Sun to be more yellow in order to make it look more “natural”! You’d think that our once yellow looking sun having now changed to white would be a huge deal especially with all the climate change talk but no it’s never talked about which is very strange. If it is moving away, the frequencies as observed on Earth are lower, it is known as a redshift, so we see the reddish colour. Justin & Dan. If one were on a different planet, the color perceived would of course change based on the planet’s atmosphere or even if you were somehow inside a nebula or anything that affects light. Vincent, the last 8 bits are for alpha. \then whats changing the suns ray from white to yellow may not be our atmosphere but something along its way. However, the definition has already more or less changed or rather been modified thanks to certain news agencies out there. The Sun and stars with similar temperatures are yellow when observed from the Earth, and that is why they are often represented with this color and called “yellow dwarfs”. You should be asking yourself what’s wrong with me and then reevaluate the world around you. Today I found out the Sun is white, not yellow. For more information on this process, check out the sources or just grab a cosmology book (where I first learned about this back in college). When did they start calling stars ‘red dwarfs’? Did some scientific organization decide this? The Sun appears white on them! Secondly, your statement that the F-class stars “start off as being white(F10) and progress towards being Blue white as they move up the chart” is incorrect both theoretically and observationally. Based off of studying the stellar classification charts that NASA has, and observing the effects of the sun’s increasing brightness and moving up the color temperature chart in appearance, the sun probably as become at least a G1 if not a G0 star. At the core of the Sun, nuclear fusion power produced is estimated at about 276.5 watts/m^3. You’re not really white. Do you know what color the Sun is? Yes the sun extremely white now, also the moon used to be much dimmer and had a silver-like color or yellow cast t it. Isn’t a FACTOID something false that is presented as a fact? However, the Sun is essentially all colors mixed together, which appear to our eyes as white. I thought that agreed number of stars in the Milky Way was around 400 billion. It’s white. It’s amazing to think there are 100 million stars in our galaxy and 100 billion different galaxies out there. Anybody have an idea? That’s why they’re constantly lying about it and treating us as if we’re stupid. Or so I’m told. Think about it. This is more of cyan color (greenish blue), though the color will likely vary for different observers. If the sun’s rays a white and when they enter our atmosphere they appear yellow. A correct statement would be that the Sun is mostly white with a tinge of yellow. I think not! But it’s always shown in “dramatic” colors, even when shot from space. The Sun outputs a LOT of yellow light! I would like to see a picture of it absolutely white and round and SOLitary. If you liked this article and the Bonus Facts below, you might also enjoy: For you graphics and web developers out there, here are some more stars and their associated hex colors: “the exact color of the sun is #fff5f2” that’s quite a generous way of using the term “exact”. The third week of October. But the suns highest color spectrum output is green. If you could travel into space and look at the Sun without going blind, you’d find that it’s actually white, and not yellow. i never read all the comments so spare me if im repeating. Your email address will not be published. Depending on the species, this whiter sun is wrecking havoc on their ability to make chlorophyll, inducing massive deformation due to over stimulation of growth, and weaker than normal flowering and the resulting anemic fruit production. I’ve heard multiple sources say the sun is white, that it just looks yellow because the Earth’s atmosphere is scattering the blue light. They must have got it wrong. mix together causing what to us appears as a yellow ray of light. The Sun generates its energy from nuclear fusion at its core fusing the hydrogen nuclei into helium. It can only be viewed as yellow when put through a heavy non-polarized filter to block out the majority of the light. tthe Sun’s disk’s might look white when staring at it because of it’s proximity. Our Sun is estimated to be approximately 5800 o Kelvin, and when viewed from outside Earth’s atmosphere, it appears white. http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/, Daniel: I agree, any computer model spitting out a color code will be limited for many reasons. Useless information is informative but useless! This will give the sun an effective lifetime as a main sequence star of about 10 billion years with about 5 billion years to go. An incredible change. The issue of what color the astronauts/cosmonauts see of the Sun in space has nothing to do with the Sun’s “true color”, whatever that is suppose to mean! A flat photon flux distribution produces a white result. Sunlight is white because that's what white is defined to be: the sum of the frequencies put out by the Sun (and that human beings have receptors for). It can’t be both yellow and white at the same time, or can it?eval(ez_write_tag([[970,250],'askanastronomer_org-medrectangle-3','ezslot_5',130,'0','0'])); The Sun emits a lot of energy in the visible range. It all reminds me of how small we are in the universe as we know it and it makes me want to watch some Carl Sagan Cosmos videos on Netflix . When we use this criterion, we should use green for the Sun. Finally in a moment of truth they admitted the sun seemed to be stuck at solar maximum…BUT they quickly added it was at a 400 year cycle low overall. Often it is stated to be a yellow dwarf star and most of the H-R diagrams will show it as a yellow star, though there is some that have changed this to a white color. The sun is technically centered in the green portion of the spectrum, aka we live under a green star. [Though it is a tongue-n-cheek term, it is still scientific. So the Sun is yellow because that is the way it looks! 3) Spectral Irradiance peak. Anyone into the scientific method could easily observe this was nonsense…and was just an attempt to cover up the impact of their admission. The whitest thing in the world or rather out of the world. Since when did yeast and bacterial cells have cell walls and how could they be functional? Actually, the sun exhibits a phenomenon known as black-body radiation. The position of star on the H-R Diagram depends on star’s temperature and brightness. Because that’s how our eyes work.
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