Download INV 12B MOTION WITH CHANGING SPEED DRY LAB DATA

STAR COLOR GRAPH
Temperature ˚C
Remember:
- Plot the stars.
- Shade in the columns as directed starting on the right side and moving left.
- Compare to the H-R diagram and label the star groups.
Questions:
1. What is the general relationship between temperature and star brightness? (Hint: The hotter the star…)
__________________________________________________________________________
__________________________________________________________________________
2. What relationship do you see between star color and star temperature? (Hint: Cooler stars are…, hotter stars
are…)
__________________________________________________________________________
__________________________________________________________________________
3. How does the sun compare to the other stars on the main sequence? (Hint: The sun’s color is …..What part
of the main sequence is it in – upper left, lower left, etc.?)
__________________________________________________________________________
4. What star class does our sun belong to (Look at the Spectral Class letters across the top)?
__________________________________________________________________________
5. A star is classified as being in Class B. What is its color? Temperature?
__________________________________________________________________________
6. We know dwarfs are small—smaller than our sun. How can they be so bright? (Look at their temperature and
think about their mass as compared to the sun.)
__________________________________________________________________________
__________________________________________________________________________