Continued from Astronomy questions part 1 - I have a review sheet of about 100 questions, and she hasn't given us the answers...the test is tomorrow. Could you please help me out? These are the ones I'm struggling with...
Thanks!
Again, these are all true/false...
1) Light from distant stars that must pass through dust arrives bluer than when it left its star
2) Stars evolve along the main sequence
3) For bright stars to form, the protostars must condense in a dense, dark nebulae
4) While more massive than most of our neighbors, our Sun is still technically a low-mass star (ok I know it is a low mass star, but is it actually more massive than our neighbors??)
5) A typical star burns helium for about the same amount of time it burns hydrogen
6) Once the helium flash occurs at stage 10, the star stabilizes again on the horizontal branch of the Hertzsprung-Russell Diagram, but now hundreds of times as bright as on the main sequence.
7) Our sun will fade in luminosity as its supply of hydrogen drops in a billion years.
8) Our sun should become a planetary nebula in another five billion years.
THANK YOU AGAIN!
no no no
out of the 100 questions, these are 14 that I don't understand (this one has seven, the other question I asked has 7)
Thanks!
Again, these are all true/false...
1) Light from distant stars that must pass through dust arrives bluer than when it left its star
2) Stars evolve along the main sequence
3) For bright stars to form, the protostars must condense in a dense, dark nebulae
4) While more massive than most of our neighbors, our Sun is still technically a low-mass star (ok I know it is a low mass star, but is it actually more massive than our neighbors??)
5) A typical star burns helium for about the same amount of time it burns hydrogen
6) Once the helium flash occurs at stage 10, the star stabilizes again on the horizontal branch of the Hertzsprung-Russell Diagram, but now hundreds of times as bright as on the main sequence.
7) Our sun will fade in luminosity as its supply of hydrogen drops in a billion years.
8) Our sun should become a planetary nebula in another five billion years.
THANK YOU AGAIN!
no no no
out of the 100 questions, these are 14 that I don't understand (this one has seven, the other question I asked has 7)