Edwin Hubble believed that galaxies morphed from one type into another. What is the name of the scheme he developed?

Edwin Hubble believed that galaxies morphed from one type into another. What is the name of the scheme he developed?

Identify each of the layers of the sun shown above.

Use the following table to answer the question. Star Apparent Magnitude (m) Absolute Magnitude (M) m-M Spectral Type 1 -1.46 1.46 0 F0 2 -0.72 -2.5 1.78 A1 3 0.12 -8.1 8.22 B8 4 0.41 -7.2 7.61 M2 5 -0.27 4.4 -4.67 G2     Which star is exactly 10 parsecs away?

Use the following table to answer the question. Star Apparent Magnitude (m) Absolute Magnitude (M) m-M Spectral Type 1 -1.46 1.46 0 F0 2 -0.72 -2.5 1.78 A1 3 0.12 -8.1 8.22 B8 4 0.41 -7.2 7.61 M2 5 -0.27 4.4 -4.67 G2     Which star has the largest mass?

The most abundant element in the sun is

The absolute magnitude of a star is defined to be the apparent magnitude that the star would have if it were at a standard distance of _____ parsec(s).

What does the color of a star directly tell us about the star?

What happens when a star can no longer fuse hydrogen into helium in the core?

The most abundant element in the sun is