Download The HR Diagram and Stars Worksheet

Name _________________________________________
Block _________
The H-R Diagram and Stars Worksheet
1. Below is the Hertzsprung-Russell (H-R) Diagram. This diagram plots
_________________ vs. __________________.
2. Use your book to add the following information to the H-R diagram.
a. Page 622 – Add the Spectral Class below the temperatures.
b. Page 626 – Use colored pencils to add and label the band that represents
Main Sequence stars.
c. Page 626 – Use colored pencils to label the following areas: Blue Giants,
Red Super Giants, Red Giants, Red Dwarfs, White Dwarfs
d. Page 626 - Label the following stars: Spica, Vega, Sun, Proxima Centauri,
Rigel, Betelgeuse, Aldebaran.
3. Describe general characteristics about each of the following star types: p.626
a. Main sequence –
b. Giants –
c. Supergiants –
d. White dwarfs –
4. Use colored pencils to sketch the life cycle of a star, starting with nebula and
ending with white dwarf, black hole and neutron star (show all possible paths to
star death). p. 628
5. Describe each of the following stages: p. 628
a. Protostar
b. Planetary nebula
c. Supernova
d. Neutron star
e. Pulsar
f. Black hole
Groups of Stars – Galaxies
6. Describe the shape of each type of galaxy. p.631
a. Spiral
b. Elliptical
c. Irregular
7. What type of galaxy do we live in? _______________________ What is its name?
_______________________ p. 632