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The brightness of a star, corrected for distance, on a scale of -8 to +19. The smaller the number the brighter the star.
The brightness of a star as seen in the night sky. The smaller the number, the brighter the star.
core, radiative zone, convection zone, photosphere
What are the four regions of the sun from the in out?
main sequence, white dwarfs, red giants, supergiants
What are the four types of stars on the H-R Diagram?
parallax method, apparent magnitude method
What are the two main ways astronomers measure the distance from the earth to a star?
A large ensemble of stars, all interacting through the gravitational force and orbiting around a common center.
a phenomenon in which light that comes to the earth from other galaxies ends up having longer wavelengths than it should
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