Stellar classification

“Oh, be a fine girl/guy kiss me,” or maybe not. Learning this phrase has helped multiple astronomers to educate themselves on the spectral classification of stars and continues to do so in today’s time. Annie Jump Cannon’s legacy will carry on lasting a lifetime! The first letters of each word in the phrase represents the seven main types of stars. Starting with ”‘O,” these stars are very young, blue, hot, massive and extremely bright star. This type of star is very uncommon similar to the “B” and “A” stars. These stars get their energy from nuclear fusion, as they convert Hydrogen to Helium. As these massive stars begin to die once they’ve worn out their hydrogen and are now very old stars, they turn into giants/supergiants (old, large stars), resting just above the main sequence stars. This is where the “F” and “G” stars are located. The hotter they are, the brighter they are demonstrating the Sun being a G star. Next, the core contracts as the outer layers expand. This is leading to the explosion of stars eventually becoming a planetary nebula or supernova,…

Omega Centauri and Tarantula Nebula As opposed to the more short lived and less dense colonies of young stars that group up to create open clusters, globular clusters exist as far greater, spherical collections of aged stars that contain many low mass stars, sometimes numbering among the thousands. Globular clusters are more commonly found among a galaxy’s centre where the vast majority of stars are. It is thought that globular clusters arise from large gas clouds early in the creation of our…

Stage Four: Protostar By this stage of the stars evolution, 100,000 years after the process began, it can now be plotted on the Hertzsprung-Russell diagram, which is used to compare the many different stars. Although it is still not fully formed, we are able to determine the type of star it will become based on its luminosity and temperature. In the nucleus of the condensed cloud, which could now fit within the orbit of Mercury at less than 58,000,000 km wide, electrons and protons are ripped…

it is officially owned by the person/group that recorded it (registering it at a copyright office isn’t mandatory, but is recommended). This places it under their ownership for the life length of the artist plus another 70 years. Pirating is also another legal issue that is present, more people than ever are using these illegal means to download music which is rightfully owned by Spinnin’ Records, however to combat this the label have implemented new copyright guidelines meaning that anyone…

Laying on the fresh cut grass of your lawn, you watch the sun sink behind the mountains as day subtly fades into night. There is always a minute of darkness as the city holds its breath. No street lights. No cars. Just you and the sky and… the faint glow of a star. Seeing the first star that night, you make a wish and remember the first time you saw one. You still wonder what that speck of light is—How it got to be up there, why it sometimes is so bright and other times so faint, and how it…

The Colonial Period consisted of European countries going to countries within the Eastern World and imperializing many countries within Africa and Asia. These European countries imperialized those countries to compete with fellow European countries, gain raw materials from the Eastern countries, and have access to a larger market. The legacies that the imperial world left was destruction of the culture of African and Asian countries, a rapid growth for the countries of the colonizers and…

by the National Aeronautics and Space Administration (NASA) and is tasked with the project of compiling medical health information for astronauts in a research database. Ms. Greene’s background includes a Health Information Technology degree, RHIT and CCS certifications as well as 10 years of experience in the Health Information Management (HIM) field as an outpatient ER coder and an inpatient coder at a large university hospital. Her skill set is very well suited to the project that she is…

Individuals in poor nations have a tendency to have less access to health care services than those in better-off nations, and inside nations, the poor have less access to wellbeing services. Despite the fact that an absence of financial resources or data can make hindrances to getting to services, the causal relationship between access to health services and poverty keeps running in the other direction. At the point when human services are required however is postponed or not obtained,…

Introduction The world has become a better place than it used to be. Individuals are healthier, live longer, and wealthier, yet the escape from poverty by many has left inequality gaps between nations and individuals. In the book The Great Escape, Angus Deaton, who is one of the leading experts on economic poverty and development, narrates an incredible story of how some parts of the world in the past experienced progress while others did not, leading to inequality in today’s world (Deaton).…

bringing more citizens from developed countries into direct contact with individuals from Ebola-infected regions. This creates a system in which high levels of business opportunities draw international persons into Ebola areas in Africa, which increases the number of non-african ebola patients, thus increasing international interest and attention surrounding the virus.The result of which is changing percetions and behaviour towards Ebola. The limited western involvement during 1994 meant that…