According to the HR diagram above, an example of a star with a relatively low surface temperature and relatively dim would be
Question 2
2.
Which of the following represents the correct life stage sequence for a high mass star?
Question 3
3.
Which of the following measures of brightness depend on where you measure it from?
Question 4
4.
An element has 14 protons, 15 neutrons, and 14 electrons. What is the element and is it an isotope or an ion?
Question 5
5.
If Potassium is an ion with a +1 charge, then how many protons and electrons does it have?
Question 6
6.
State Hubble's law and explain the equation and relationship shown in the data above.
Question 7
7.
The hydrogen red line (656 nm) from a distance galaxy has a measured wavelength of 675 nm, what is its recessional speed as a percent of the speed of light. SHOW ALL WORK.
