Show:
Stars 1
Stars 2
Stars 3
Stars 4
The Diagram
100
An imaginary pattern of stars in the sky
Constellation
100
What color is our sun?
Yellow
100
What was the name of YOUR constellation and what was the story or myth related to it?
Answers will vary...keep it short! 2-3 sentences
100
The life cycle a star may experience depends on what?
The life cycle of a star depends on its MASS
100
What two characteristics are used in classifying stars on the H-R diagram?
Surface temperature Absolute brightness
200
An instrument that separates light into colors
Spectrograph
200
True or false The sun is the nearest star to Earth
True
200
What five characteristics are used to classify stars?
Size Temperature Brightness or Magnitude Chemical composition Color
200
Where do all stars begin their life?
Stars begin their lives in a nebula (or stellar nursery)
200
What is the name of the graph that relates the surface temperature and absolute brightness of stars?
What is the H-R diagram
300
The inner layer of a star that gives off its visible light.
Photosphere
300
True or False The sun is the largest star in space
False, it is a medium size star
300
From what are most stars made?
Hydrogen and helium
300
How do low and medium mass stars' lives end?
Low and medium mass stars' lives end as a black dwarf
300
*TWO PART QUESTION* How is the x-axis labeled on the H-R diagram? How is the y-axis labeled on the H-R diagram?
x = surface temperature y = absolute brightness
400
The distance that light travels in one year, about 6 trillion miles.
Light-Year
400
How will our sun's life eventually end?
Our sun is a medium mass star, it will end as a black dwarf.
400
What does color tell us about a star?
Temperature
400
How do high mass stars' lives end?
High mass stars' lives end as either a black hole or neutron star
400
Describe how temperature is presented on the H-R diagram.
The hottest stars are on the left and the cooler stars are on the right.
500
The apparent change in position of an object when seen from different places
Parallax
500
What is the name of the nearest star in the sky?
Sun
500
What effect does gravity have on stars?
It forms stars from clouds of gas and dust and causes them to ignite
500
Stars burn the most of which element?
Hydrogen
500
Describe how absolute brightness is presented on the H-R diagram.
Brighter stars are located on the upper portion. Dimmer stars are located on the lower portion.