In terms of a human lifetime, stars appear static on the night sky. Thus, we call these “fixed stars”. The only real discernable motion are from very close objects such as: Sun, Moon, planets, comets, and asteroids. However, all objects in the Universe move. This will focus on providing an introduction to Stellar Motions. For further understanding of the topics discussed here, consult those individual lesson videos. This lesson only provides an overview. Radial Velocity and Proper Motion will be further explored in other lessons.
Constellations
A few bright stars associated with every constellation have been named by different cultures. European and Arabic culture names were assigned by early Roman, Babylonian, Greek, Sumerian, and Arab astronomers. Other cultures, such as Native American and Chinese, have...