Thus we see red, green and blue light from the star, which our eyes interpret as white. But a star that peaks in the green is also bright in red and blue. Hotter stars are brightest in the blue range, and so appear blue. For cooler stars, the brightest color is red, and thus a star appears reddish. The brightest color of a star depends upon its temperature. Rather than emitting specific colors, stars emit a range of colors known as a thermal blackbody. But the Sun and other stars produce light from internal heat. The electrons in these atoms jump from one energy state to another, emitting a particular wavelength of light. Using a solution with dimethylglyoxime indicator and muriatic acid / ammonium hydroxide, check for significant nickel content (pink/red to purple color that. Comets, meteors and the gas around galaxies all give off color when particular atoms or molecules give of light. It all has to do with the way stars produce light, which is very different from other astronomical objects. Since we're most sensitive to green light, why are there no green stars? They can be red, yellow, blue and white, but not green. So green pea galaxies are young galaxies where lots of stars are forming, and may have played a role in the reionization of the early universe. In order for the oxygen to be bright enough to give the galaxy a green color, there has to be a lot of ionized oxygen, and thus a lot of ultraviolet light produced by young stars. The oxygen surrounding the galaxies glows green when it is ionized by the galaxy's starlight. They are compact, and have a strong green emission line from oxygen, making them look like a green pea. Galaxies that glow green are known as green pea galaxies. For example, fast-moving Leonid meteors can often have a green glow. This glow tends to be brightest when meteors hit the atmosphere at high speed. The most common metallic meteors are iron-nickel, so green is a common color. The metals in the meteor glow with particular colors. As a meteor enters Earth's atmosphere, it is heated to the point where its outer layer is vaporized. Meteors are green for a completely different mechanism.
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