27.1 Observing the Night Sky

Observing the Night Sky (1 of 3)

The three-dimensional perspective of the stars around us is explored followed by an introduction to two types of motion we see in observing the night sky. Duration: 5:41.

Mobile Link: http://bcove.me/pqewwsw1

Observing the Night Sky (2 of 3)

The eastward motion of the Moon is discussed followed by an introduction to two motions of stars apparent only on very long time scales. Duration: 5:37.

Mobile Link: http://bcove.me/t9xptffo

Observing the Night Sky (3 of 3)

A perspective on how fast light travels is given followed by an introduction to the light-year, which is a basic unit of astronomical distances. Duration: 4:45.

Mobile Link: http://bcove.me/tf4y8u86