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There are no green stars because the ‘black-body spectrum’ of stars, which describes the amount of light at each wavelength and depends on temperature, doesn’t produce the same spectrum of colours as, for example, a rainbow.
4 sty 2021 · Some dying stars — planetary nebulae — appear green as well. Modern 'green pea' galaxies have their doubly-ionized oxygen emission offset from the main galaxy; ...
The greenish Voorwerp is visible because a searchlight beam of light from the galaxy's core illuminated it. This beam came from a quasar, a bright, energetic object that is powered by a black...
4 mar 2024 · It seems weird, right? The color of stars, or anything that gets really hot, is connected to its temperature. This is because hot objects emit light, which is called thermal radiation. The...
29 mar 2013 · Earth's sun emits a lot of green light, but humans see it as white. Purple stars are something the human eye won't easily see because our eyes are more sensitive to blue light.
The Kuiper belt and Neptune may be treated as a marker of the extent of the Solar System, alternatives being the heliopause and the distance at which the Sun's gravitational influence is matched by that of other stars (estimated to be between 50 000 AU and 125 000 AU).
15 cze 2020 · The Subaru Deep Field, containing thousands of distant galaxies exhibiting a signature of greenness in them: arising from doubly ionized oxygen. However, none of these galaxies appear green...
