Introduction to Astronomy
This book is available for download with iBooks on your Mac or iOS device, and with iTunes on your computer. Books can be read with iBooks on your Mac or iOS device.
When you look up at the darkened sky and gaze at the stars, some seem to be blinking, and you wonder why. All of a sudden, you can see a shooting star and the little dipper. The moon is in an eclipse, and a feeling of wonder overcomes you. There is so much up there to learn about and enjoy, and it is not difficult or expensive to become involved