4) As I look through my telescope, objects in the sky appear to move. Why is that?
The constant rotation of the Earth makes things appear to move. Lower-power eyepieces will reduce this effect
of movement considerably and allow you to observe an object for a longer duration before you have to readjust
your telescope.
National Geographic’s net proceeds support vital exploration,
Experience the National Geographic Channel.
conservation, research, and education programs.
Call your cable or satellite provider for availability.
Visit
our
website:
www.nationalgeographic.com
©
2009 National Geographic Society. NATIONAL GEOGRAPHIC and Yellow Border are trademarks of National Geographic
Society. All rights reserved
8
