Multiple Choice
What is a planetary nebula?
A) the bipolar jets ejected by a T Tauri variable
B) a planet surrounded by a glowing shell of gas
C) the disk of gas and dust surrounding a young star that will soon form a solar system
D) the ejected envelope, often bipolar, of a red giant surrounding a stellar core remnant
E) a type of young, medium mass star
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Relate hydrostatic equilibrium to the star's mass,
Q2: What inevitably forces a star like the
Q4: The Sun will get brighter in the
Q5: Refer to the figure above. What is
Q6: A star cluster of age 100 million
Q7: While more massive than most of its
Q8: Eventually, all low mass stars will become
Q9: Which of these will the Sun probably
Q10: Discuss the source of energy for a
Q11: What spectral type of star that is