Documents Chapter 20 Galaxies Determining Distance

Chapter 20 Galaxies Determining Distance Measuring distances to galaxies: We measure galaxy distances using a chain of interdependent techniques Step 1 Determine size of…

Documents Barnard’s Star

Barnardâs Star Introduction Barnard's Star is a low-mass (0.16 solar mass) red dwarf star, which is located around 6 light-years away from Earth, in the constellation…