Download 1. Luminosity is another word for the vocabulary word ______. 2. If

1. Luminosity is another word for the
vocabulary word _________.
2. If two stars are different colors, we
can infer that they have different
a. chemical compositions c. shapes
b. masses
d. temperature
3. Which magnitude is brightest?
a. -2
c. 4
b. -4
4. The dimmest class of star is the
a. O
c. K
b. B
d. M
5. The hottest stars in space are
_____ color.
a. yellow
b. red
c. blue d.
white
6. The coolest stars in space are
_____ color.
a. yellow
b. red
c. blue d.
white
7. A sequence of star colors from
hottest to coolest is _____.
a. blue, yellow, orange, red
b. blue, red, yellow, orange
c. red, orange, yellow, blue
d. yellow, blue, orange, red
8. What vocabulary word describes the
brightness of stars? _______________
9.What is the temperature of Sirius B?
10. Luminosity of Sirius B?