1. Aug. 29 –Sept. 2, 2011 Welcome Assignment Due this week – take out planner and write the assignment – Pd 1: September 1 st, Thursday Composition of objects in the galaxy notes – Pd 2, 4, 5, 6: September 2 nd, Friday Composition of objects in the galaxy notes Get Science Notebook Draw a circle map – What do you know about stars? Stars

2. Characteristics of Stars Page 126 Read together and take notes Page 129 Double Bubble –Apparent Brightness vs. Absolute Brightness –(Period 4 need to complete, Period 5 homework, Period 6 need to complete)

3. The Hertzsprung-Russell Diagram Page 132 - 133 –Summarizing – What two characteristics of stars are shown in an H-R diagram? –Identifying – Identify two ways in which astronomers can use an H-R diagram –Classifying – The star Procyon B has a surface temperature of 6,600 C and an absolute brightness that is much less than the sun’s. What type of star is Procyon B? (refer to the H-R diagram – page 132

4. Inner and Outer Planets + Pluto Inner Planets Page 84 - 91 Outer Planets Page 94 – 101 In your notebook give a brief description of each in a tree map Inner PlanetsPluto Outer Planets MercuryVenusEarthMars SaturnJupiterUranusNeptune Distance from the Sun Diameter Composition Planets of our Solar System + Pluto