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The sun being classified as a yellow dwarf does not mean it's "only yellow hot". You can observe that by going outdoors and holding up a white piece of paper an
by causality0 4y ago
The sun being classified as a yellow dwarf does not mean it's "only yellow hot". You can observe that by going outdoors and holding up a white piece of paper and noting it is not yellow in sunlight.
powered by a nuclear explosion
Not quite accurate. The nuclear fusion going on inside the sun's core is not an explosion. In a nuclear explosion, a significant fraction of the fuel in a given area is consumed in an instant. The sun's core on the other hand only fuses its fuel extremely slowly. Pound for pound, the sun's core generates less heat energy than mammalian muscle tissue. It's just that there's so much of it that the heat energy is extremely well insulated.
- kridsdale1 4y agoThe sun is the color it is because its surface is 5500 Kelvin, which we have defined as white. The sun is cooler than most visible stars, so it can be called yellow by comparison.
- stametseater 4y agoThe sun appears slightly yellow because the atmosphere scatters blue light more than the rest. The result is the sky looks blue, the sun is slightly yellowish, and the cumulative light (both directly from the sun and diffuse light from the sky) is white. Outside the atmosphere, our sun appears proper white.
- causality0 4y agoThe sun is cooler than most visible stars, so it can be called yellow by comparison. Incorrect. The out of atmosphere color temperature of Sol is ~5900K. The average color temperature of the Milky Way is 4700-5000K. https://www.news.pitt.edu/milkywaycolor https://www.news.pitt.edu/milkywaycolor