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29 de nov. de 2019 · The coolest stars are light orange red. Whereas the hottest stars are blue or a deep blue white. Usually blue stars are younger, and much closer in distance.
Here on Earth, the atmosphere plays a role in the color of the sun. Since shorter wavelength blue light is scattered more efficiently than longer wavelength red light, we lose some of the blue tint of the sun as sunlight passes through the atmosphere.
2 de feb. de 2024 · Learn about the sun, an ordinary star that provides heat and light for life on Earth. Find out how the sun is composed, how it affects Earth, and how it will change in the future.
1 de sept. de 2023 · The sun is white, but it looks yellow or greenish when it's low in the sky due to atmospheric scattering. Learn how color perception works and why the sun's color matters for astronomy.
The Sun is a star, i.e. a big ball of glowing gas in the smooth and uniform appearance whose surface temperature is 5778 K. In fact the Sun is blue-green because the temperature of 5778 K corresponds to the blue-green color in the spectrum of black body.
20 de may. de 2013 · Learn how to see the Sun in a different color and what it reveals about its activity level and structure. This image shows the Sun in extreme violet light and false color-inverted, revealing a crackly chromosphere, bright sunspots and dark active regions.
How would life on Earth change if the sun was blue instead of yellow? This article explores the impacts of a blue sun on climate, weather, plants, animals, humans, and astronomy.
