What about black holes, do they emit colored light? How do nebulae exhibit different colors?
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- How does the age and metallicity of a galaxy affect the colors of its stars? What are hypergiants and what colors do they typically have?
- How do the colors of stars in HII regions compare to those in the surrounding interstellar medium?
- Do all stars emit the same spectrum of light, just at different intensities? How do variable stars change their color as their brightness fluctuates?
- How do we account for these biases when studying the demographics of star colors in different environments? What are the most extreme examples of red supergiants and blue hypergiants known?
- What is a colored star?
- Does light pollution affect our ability to see star colors? Are there any cultures or mythologies that associate specific colors with stars?
- How can we use online planetarium software to explore the colors of different stars?
- What about a supergiant star? Do planetary nebulae have distinct colors?
- What are the colors of stars that have recently formed out of mergers of smaller systems?
- What causes the intense colors associated with quasars?
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