He Sol is not the color you imaginebut it has a color that you might never have imagined until now. Knowing a little more about this royal star is essential, you have to be very aware of a type of element that can end up being the one that makes an important difference. Life on the planet would not be the same, especially if we take into account a type of element that we would never have imagined would be very different.
NASA experts have created a series of elements that have ended up making a difference in every way. A reality that can end up being what marks a before and after, without a doubt, that moment will have arrived to know the Sun and really see it as it is. We see it in yellow and we will surely paint it in that tone, but in reality nothing could be further from the truth, maybe it will end up having a color that has nothing to do with it or maybe it will end up being the one. that accompanies us these days. It will not be what you thought, I hope it may surprise you in many ways.
The True Color of the Sun Revealed by Science
The Sun, stars and Moon appear to have the same colorin this case, a yellow tone that will surely surprise us and that could end up impacting us from a very young age. We live far from these elements, thousands or millions of kilometers away, so we do not see them as they are.
The distance makes us not see the Sun as it is. It would be impossible to get close to it, but it means that we could see it in a very different way. The reality is that we only see one color, in a spectrum affected by a type of element that can end up being the one that deceives our eyes.
The senses may end up being very different, but that means we will have to start thinking about some of the elements that will accompany us these days. The moment of truth will have arrived. NASA tells us the true color of the Sun on which we depend. This royal star may have a very different tone than we imagine. A harsh reality discovered by science that has provided us with important data.
As they tell us on the NASA blog: “Our perception of color is of course influenced by the wavelength of the light emitted, the intensity of the light emitted (I’ll explain this later), environmental factors, the ability and limitations of our eyes to gather light, and ultimately our brains. So let’s start with the wavelength of light. Like all matter, the Sun emits a “blackbody spectrum” defined by its surface temperature. A blackbody spectrum is the continuum of radiation at many different wavelengths emitted by any body with a temperature above absolute zero. For our Sun, this blackbody curve or “Table Function” is a smooth, almost bell-shaped curve involving electromagnetic (EM) radiation at many different wavelengths, from very long infrared to very short ultraviolet wavelengths. During very hot, explosive, high-energy solar flares, the Sun also emits huge amounts of EM radiation every second! These massive solar flares are huge explosions in the sun’s atmosphere caused by the sudden release of energy from the magnetic field and tend to occur near solar maximum. Flares also accelerate charged particle plasmas to high speeds, resulting in radio emissions. Therefore, the sun emits energy at all wavelengths, from radio to gamma rays. But, as you can see in the image above, it emits most of its energy around 500 nm, which is close to blue-green light. So you could say that the sun is blue-green! This maximum frequency of radiation is governed by the temperature of the sun’s surface, around 5,800 K. A higher surface temperature would result in a shorter maximum wavelength and our sun could reach its peak in the blue or violet part of the spectrum (or even in the ultraviolet!). A lower surface temperature and the spectrum of our sun could peak in the yellow, orange or even red part of the spectrum. But that is physics, not perception. I must point out here another spectral signature of the sun, the photon flux. If we use the relationship found by Max Planck, E = hf (i.e. Energy = Planck’s constant frequency) and convert the solar irradiance to photon number, the spectral signature on visible wavelengths is much flatter and the sun is perceived as more yellow. If we were above the atmosphere, for example on the International Space Station, and looked at the sun (through our filtered visor), the sun would appear white! Because? Because while the sun emits strongest in the green part of the spectrum, it also emits strongly in all visible colors, from red to blue (400 nm to 600 nm). Our eyes, which have three color cone cell receptors, inform the brain that each color receptor is fully saturated with meaningful colors received at all visible wavelengths. “Our brain then integrates these signals into a perceived white color.”
