Question

Okay so since it seems nobody knows...I'll do it again haha so I am working on this...
http://roads.advancedacademics.com/ContentServer/Content/RoadsSection/280146/resources/docs/PSB_10.2.15_data.pdf
The rest is in a comment :)
I'd SOOOOOOO love some help.

Answer 1

Answer the following questions after you have completed the HR Plot. Use complete sentences and submit this file for grading.

1) How does our sun compare to other stars in terms of brightness and temperature?

As an average weighted by the stellar luminosity function, the sun is somewhat above the average temperature and very much above the average luminosity. Only 4% of main sequence stars are significantly brighter and hotter than the sun. About 6% of main sequence stars are about the same brightness and temperature. About 90% of main sequence stars are significantly dimmer and cooler than the sun. However, most of our galaxy's light (about 88%) comes from spectral type B stars, even though only one star in each thousand stars belongs to this type.


2) Explain any patterns or trends displayed by the Group 1 stars.

group 1 is the main sequence stars. they all appear on an S-shaped curve on the HR diagram, and their tendency is the lower the temperature, the higher the luminosity


3) Which group of stars represents the Main Sequence? How do you know this?

The group one represents the main sequence. This is because the main sequence is a continuously and distinctive band of stars that appear on plots of stellar color versus brightness.


4) Group 2 and Group 3 stars represent which stages of development? Describe these groups in terms of their relative age, size, brightness, and temperature.





5) What determines if a star will end its life as a neutron star, a white dwarf, or a black hole?
The mass of the star determines how a star will die. if it's a low mass star, it will die as a white dwarf and then become a nebula again, and if it's a high mass star it will !!SUPERNOVA!! and turn in to a neutron star and if it's even BIGGER THAN THAT it'll supernova and turn into a really bright, really dense neutron star.

Answer 2

I need help with number 4 :(