hertzsprung- russell diagram. h-r diagram compares the temperature, color and luminosity...
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![Page 1: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/1.jpg)
Hertzsprung-Russell Diagram
![Page 2: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/2.jpg)
H-R Diagram
• Compares the temperature, color and luminosity (brightness) of stars on a graph.
• The temperature is the surface temperature of the star
• The brightness of the star is its absolute magnitude
![Page 3: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/3.jpg)
APPARENT MAGNITUDE VS.
ABSOLUTE MAGNITUDE
Apparent magnitude
Absolute magnitude
Measure of the amount of a star’s light received on Earth
Measure of the amount of lighta star actually gives off
![Page 4: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/4.jpg)
STAR PROPERTIES
Color indicates temperature
Hot stars are
Cool stars are
YellowMedium temperature stars are
Blue
Red
![Page 5: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/5.jpg)
White dwarfs
small, hot stars
leftover centers of old stars
![Page 6: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/6.jpg)
Red-Giants
When star runs out of energy, the center shrinks and the outer part expands outward. It will grow very large and cool.
![Page 7: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/7.jpg)
Supergiants
Very massive cool giant star
![Page 8: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/8.jpg)
Main Sequence
Stretches diagonal from the top left to the right bottom
Our sun is an average main sequence star
![Page 9: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/9.jpg)
Blue Supergiants
Very massive blue stars
Quickly use up energy and turn into Giants or Supergiants
![Page 10: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/10.jpg)
Red Dwarfs
Low-mass stars
Oldest stars in galaxy
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![Page 12: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/12.jpg)
![Page 13: Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface](https://reader033.vdocument.in/reader033/viewer/2022051515/551b079555034607418b4dba/html5/thumbnails/13.jpg)
Putting it all together
http://www.eram.k12.ny.us/education/sctemp/77f43cfb9ae82b830c63fb080599aa31/hr.swf
H-R Diagram AND Life Cycle