1. Celestial Navigation ICelestial Bodies(Fixed Stars) 2. Celestial bodies used in navigation are divided into two general classes, namely: fixed stars and those that belong…

Slide 1Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Table of Contents Section 1 Stars Section 2 The Life Cycle of Stars Section…

: Cepheid Variable Stars Stars that Breathe Introduction Pulsating stars are a type of variable star in which brightness variations are caused by changes in the area and…

Slide 1 Bingo! 19 The distance that light travels in one year. 20 Bingo! 12 A giant cloud of dust and gas where new stars are born. 13 Bingo! 5 What type of galaxy is shown…

Light Pollution Measured by the DSS-7 (Deep Space Spectrograph) Rose Haber http://farm1.static.flickr.com/61/212916043_7895484234.jpg Chicago, Illinois at night Need Glare…

Slide 1 January 6th, 2012 WARM UP: When viewed from the northern hemisphere, describe the position of the sun, at sun rise and sunset, on the local horizon, on the following…

Slide 1 Bingo! 19 The distance that light travels in one year. 20 Bingo! 12 A giant cloud of dust and gas where new stars are born. 13 Bingo! 5 What type of galaxy is shown…