Clouds are usually the last things astronomers want to see in the sky, but for those who observe in the southern hemisphere there is a notable exception to that celestial rule. The Large and Small Magellanic Clouds are among the highlights of the southern night sky. Only within the last century were astronomers able to verify their true nature. Although they seem to be two foggy patches possibly torn from the Milky Way, astronomers believe these are actually small galaxies gravitationally bound to
Galaxies are large groups of stars, dust, and gas. Galaxies contain planets, star system and clusters, and interstellar clouds. In between these objects, there’s a sparse interstellar medium of gas, dust, and cosmic rays. There are supermassive black holes located at the center of most galaxies. Supermassive black holes are the largest type of black hole. Galaxies that have less than a billion stars are considered “small galaxies”. Galaxies are categorized according to their shape. There are three
observe the heavens for personal satisfaction and enjoyment. I myself am an amateur astronomer an... ... middle of paper ... ...enith (straight overhead position). Two galaxies which are believed to revolve around our own are the Small and Large Magellanic Clouds. Only visible from the Southern Hemisphere, Magellan, the famous European explorer, was the first to describe these galaxies. Even though we know a great amount more than the astronomers in the past, there is still an even larger amount we
M31, at about 2.9 million light years, is the nearest large galaxy, but a number of faint galaxies are much closer: Many of the dwarf Local Group members are satellites or companions of the Milky Way. The closest of all is SagDEG at about 80,000 light years from us and some 50,000 light years from the Galactic Center, followed by the more conspicuous Large and Small Magellanic Cloud at 179,000 and 210,000 light years,
The Big Bang Theory is one of the most important, and most discussed topics in cosmology today. As such, it encompasses several smaller components that attempt to explain what happened in the moments after creation, and how the universe we know today came from such a fiery, chaotic universe in the wake of the Big Bang. One major component of the Big Bang theory is nucleosynthesis. We know that several stellar phenomena (including stellar fusion and various types of super novae) are responsible for
enormous black holes which have a mass equivalent to large numbers of solar masses. A black hole is called a super massive black hole when a normal "galactic nuclei black hole" has a mass range between 0.1 million to 10 million solar masses. (Cardiff University 2014). It is believed that one solar mass is equal the mass of the sun, so that would make a super-massive black hole very large compared to the sun. Super-massive black holes having a large mass would make its gravity incredibly limitless
Figures of the Renaissance Ferdinand Magellan Ferdinand Magellan was a leader of the Renaissance and a benefactor to modern science. The results of his voyage around the globe were such that the average person living during the Renaissance re-thought their paradigms of the world surrounding them, even know most scholars and other educated types knew that in fact, the world was round in shape. Ferdinand, however, proved it. Thus he lays claim to having circumnavigated the first voyage around the
Ferdinand Magellan and Martin Luther were both extraordinary men of their time. Martin Luther sparked the Protestant Reformation and Ferdinand Magellan circumnavigated the globe. Though Magellan debunked the claims that the Earth was flat, Luther had more of an impact. When Martin Luther published, “95 Theses”, he unintentionally began the Protestant Reformation. Luther also translated the Bible to German, which enabled the common folk to be able to read and interpret the Bible in their own way.
systems of Aristotle and Ptolemy. As such, they assumed that the Sun, Moon, stars, and naked eye planets circled Earth. The many minor members of the solar system are the asteroid and comet. The asteroid is a small, rocky body that orbits the Sun. A large number of these, varying greatly in size, can be found as an asteroid belt. There is an asteroid belt between the orbits of Mars and Jupiter. A comet is a small object made up of ice and dust, and when it's near the sun, it has a thin, fuzzy, temporary
star formation over part or all of a galaxy over a cosmologically short period of time (possibly a few billion years as opposed to several billion years). Galaxy interactions cause gravitational instabilities in interstellar gas clouds, which compress the gas in the clouds and trigger star formation (Mouri 2003). When astronomers look at an ongoing starburst in a distant galaxy, they see the starburst as a bluer region than the surrounding parts of the host galaxy. That is due to the extremely hot
1. The Ancient Catalogs Astronomy was born in the five cradles of civilization, along the Nile Valley in Egypt, the Indus Valley along the western region of the Indian subcontinent, the Chinese city states on the banks of the Yellow River, the ancient regions of Me-soamerica from central Mexico down to the Andean South America and the an-cient city states of Mesopotamia in the fertile crescent. Each of these ancient cul-tures incorporated astronomy into calendar making, religion, mythology, and
Global warming is the increase of the average global temperature in the Earth 's atmosphere. Man-Made global warming has been a topic f controversial issue for many decades now. There are many theories as to why there has beem such a drastic change in the Earth 's atmosphere throughout the years. Global warming is indeed a product of humanities ' careless activities. The theories presented have ignited many debates amongst scientists and the increase in temperature has been the fuel that has kept