Astronomy Thesis

Name
Institution
Professor
Course
Date
Questions 1
Hotter stars are bluer whereas the cooler ones are redder in color.
A hotter star is the one which is more luminous than the cooler star.
In this scenario, the large star has the highest luminous when compared with a small one when initially they have the same temperatures.
Question 2
High mass stars have a very shorter lifespan when compared with the sun, as it has high material but burns easily due to the higher inner temperatures.
They have low luminosity when compared with the sun, due to the fact that they have low temperatures and thus the rate of reaction is also low.
A large radius star has low mass when compared with the sun.
Question 3
The force of gravity and internal pressure help to balance the sun and prevent it from falling. If a force of gravity was to act alone it would make the sun to be a black body and fall down but internal pressure prevents and the mechanism is known as hydrostatic equilibrium.
Question 4
Nuclear fusion is the process responsible for generating energy from the sun. Through the process temperature and pressure make the core of the sun to cause separation of nuclei from the electrons. Through this process, the radiant energy which we use on earth surface is released.
Question 5
The list will contain many low temperatures when compared with high temperatures. This is according to the H-R diagram that only a few regions of the diagrams have high temperatures stars and large parts of the plot do have low-temperature stars.

Our selection is random and we expect many of the selected stars to be of low temperatures as they occupy a large part of the area plotted.
Question 6
Low temperatures stars are delocalized when you plot the H-R diagram. At the top side of the plot we have few high temperatures and at the left side of the diagram, many of the stars are high temperatures. This leaves the other parts to be made of low temperatures stars which their chances of being selected to be high when compared with high temperatures. In addition, the hotter stars are represented by red color as the blue color represents cooler, looking at the H-R diagram many of the parts are bluer than reddish.
Question 7
This problem helps astronomers to the process which do make the sun and other stars to shine. We understand that the layers of the sun are affected by forces like convection, turbulence, rotation, and magnetic fields. These forces do make the concept of understanding how the process happens within the suns interior. Through the concept of understanding how the neutrinos are generated deep in the core of the sun and thus calculations becomes easier to calculate. Essentially the other solar models do postulate that gives us light through nuclear fusion, on which the hydrogen fuse into helium nuclei. Neutrons problem help to tell us about the interior of the sun though gravity interacts with neutrons. Neutrons are given out in the process of proton-proton reactions.
Question 8
A very luminous star = O letter
A low mass star = letter D
A star with a very high surface temperature = O letter.
A low luminosity star = M letter