[SHIMSHON]

CELESTIAL IS A GREAT MENTAL STIMULUS AND AFTER YOU LEARN SOME OF THE BASICS AND PLOT YOUR FIRST NOON OBSERVATION AND REALIZE THAT IT IS CORRECT--WHAT A GREAT SENSE OF ACCOMPLISHMENT. AND BY THE WAY ELECTRONICS DO FAIL. CELESTAIRE is a great source for everything you will need including instruments and plotting sheets as well as almanacs and publications. Try it, you will like it.