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Life Cycles of Stars (Grades 9-12) - Page 14


Hey, Low Mass Star...This is Your Life!

If done to scale, the red giant light globe would be over 5 meters in diameter!

Model a Black Hole

The heavy object representing the black hole will distort the latex surface (representing spacetime) and cause the small objects on the surface to be pulled in toward it... but not if you are too far away. A heavier ball bearing, however, would affect beads further out in the latex sheet...just as a more massive black hole creates a larger distortion in spacetime, thus affecting objects further away.

These Stars are Classified

  1. K star, main sequence, middle of its life cycle
  2. White dwarf, next to last stage of a low mass star's cycle
  3. Drawn by an unsteady hand, the path of our Sun looks something like this:

path of Sun

Note that when it goes off this graph on the left side, it actually goes out to about T ~ 100,000 K or higher before turning and heading steadily down to the white dwarf stage.

  1. (a) black hole; (b) neutron star; (c) black dwarf

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A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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