Posted by Art on November 19, 1997 at 08:29:34:
In Reply to: More Questions posted by L.C. on November 18, 1997 at 21:13:37:
: What is the primary chemical components of most stars?
: How is planetary nebula formed?
: Also, will we need a calculater for the test because there
: are formulas in the book that uses logarithms.
: Thank you!
1. Hydrogen
2. In the asymtotic giant stage of small stars the envelope is puffed off, probably by helium shell flash, leaving the remnent white dwarf core.
the slowly expanding envelope, flouresced by the white dwarf, is the planetary nebula.
3. There are no logarithms on the test. Calculators are optional, and probably unnecessary.
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