Milky way! In class I was looking forward learning about the Milky Way, it was something I have been interested in for some time. So in this paper I am going to expand on what we learned in class and talk a little bit more about our Milky Way. So The Milky Way is one of the cosmic galaxies that are made up of billions of stars. The solar system, which is part of Earth, is located in the galaxy. There are many legends about the name of this galaxy. The people our earth can see this galaxy and its stars on clear nights. Its stars look close despite the distance, giving a calm white color that looks like Milky way. In ancient Greek mythology said that “Heraclius wanted to suckle from Hera, but he could not.” He felt very disappointed and the …show more content…
The Arabs found a great resemblance between the shape of the stars in the galaxy and the spawning hay from their animals while feeding them, so they called it Milky Way. The Milky Way's origins date back billions of years. The scientists estimated it to be between 12 to14 billion years old. However, it is considered to be relatively new and comparable to other galaxies. It consists of 400 billion stars and takes the shape of a spiral, estimated at 100,000 light years , Completing one cycle around itself every 250 million years. The Milky Way galaxy revolves around itself like the rest of the celestial bodies. Its orbit completes every 250 million years, but the speed of the stars in its rotation around the center of the galaxy is certainly different. Stars close to the center orbit faster than those on the ledge, resulting in an implantation of the galaxy and its spiral shape, Each of them has a name derived from one of the brightly colored constellations on this arm. There is a constellation of the “Ghoul head” on a farmer of the same name, as well as the farmer and his planet. The arm that holds our solar system is called the “Jabbar” which contains the famous Jade Nebula, and the galaxy is far from its …show more content…
Exploring the stars through it, he proved that the Milky Way is a set of distant and therefore faint stars. In his famous "Star Herald" in 1609, Galileo wrote: "I turned to the observation of the essence or matter of the Milky Way, and with the help of the telescope it was possible to make it so accessible to our eyes that all disputes were silenced by the clarity and evidence that I am exempt from a verbose dispute. In fact, the Milky Way is nothing more than a countless number of stars, as if located in piles, in whatever direction the telescope is directed, a huge number of stars are immediately visible, a few are quite bright and quite distinguishable, the number of stars. In 1755, the German philosopher and Immanuel Kant suggested that the stars form groups in space, just as the planets make up the solar system. These groups he called "star islands". According to Kant, one of such countless islands is the Milky Way - a grand cluster of stars, visible in the sky as a light misty band. In ancient Greek, the word "galaktikos" means "milky," so the Milky Way and star-like systems similar to it are called
There is evidence that supports the hypothesis that the Milky Way Galaxy has a massive black hole at its core. At the center of our very own galaxy is a mysterious source of energy. Vast amounts of radiation pour from this compact source which may be a Supermassive Black Hole. Astronomers found an intense radio source with strings of other radio sources clustered about it in the direction of the galactic center. The intense source was named Sagittarius A because the center of the galaxy lies in the direction of the constellation Sagittarius. The position of Sagittarius A as has been observed through radio telescopes around the world seems to be very near the dynamical and gravitational center of the galaxy. Based on its high luminosity and radio spectrum Sagittarius A is neither a star nor a pulsar. It has a luminosity of 5 stars but is smaller than our solar system. Also, it can’t be a supernova remnant since it is not expanding. The strongest evidence that it is a Supermassive Black Hole come...
...f gas, which collapsed and broke up into individual stars. The stars are packed together most tightly in the center, or nucleus. Scientists believe it is possible that at the very center there was too much matter to form an ordinary star, or that the stars which did form were so close to each other that they coalesced to form a black hole. It is argued that really massive black holes, equivalent to a hundred million stars like the Sun, could exist at the center of some galaxies
But this does not justify it. Whether there is a star after the other, the assumption of uniform distribution (at that time there was no reason to think of a more privileged, more full of stars elsewhere) allows the existence of stars "next". This formal language, the stars are "dense" in the celestial sphere.
For example, the Cumulo de Pegaso is located off the tip of Pegasus’s nose and is known for its intensely bright center (Pommier, Rod). Cumulo de Pegaso was discovered by Jean-Dominique Maraldi in 1764 (“Pegasus Constellation”). Unlike Cumulo de Pegaso which can be seen with a small-telescope, Stephan’s Quintet requires a large telescope (Bakich, Michael E). Stephan’s Quintet is the first compact group of five galaxies. Edouard Jean-Marie Stephan discovered Stephan’s Quintet in 1877 (Berman, Bob.). In 1784, William Herschel discovered the Propeller Galaxy. The Propeller Galaxy is undergoing star forming activity, resulting in the S-shape it was named after “Pegasus Constellation”). Also in 1784, William Herschel discovered the spiral galaxy of NGC 7331. NGC 7331 resembles the Milky Way in size and structure (“Pegasus Constellation”). Lastly, Einstein’s Cross includes four quasars that show the phenomenon of gravitational lensing. Einstein predicted gravitational lensing in his general theory of relativity, claiming that gravity would be able to bend light. This prediction led to Einstein’s Cross’s name (“Pegasus
Nebula away so that it can avoid certain things. In the short story, “The Star,” the priest stated,
Waller, William H. The Milky Way: An Insider's Guide. Princeton, N.J: Princeton UP, 2013. 42+. Print.
In modern day physics, Black Holes have dominated the spotlight for quite some time. While the concept has answered many questions, it has also introduced hundreds more. There is believed to be a black hole at the center of our galaxy, the Milky Way galaxy. Black holes were first proven to exist in the 1970’s when a few scientists identified a black hole called Cygnus X-1. Since then, an intense amount of study has been dedicated to discovering the various properties of black holes.
Shklovskii, Iosif S. Stars: Their Birth, Life, and Death. Moscow: Central Press for Literature in Physics and Mathematics, 1975.
Human fascination with the stars is as ancient as Babylonians and has been suggested to be older than Stonehenge. From “be fruitful and multiply” to “live long and prosper,” the instinct to protect and propagate the species has manifested in religion, art, and the imaginations of countless individuals. As human understanding of space treks out of the fantastical and into the scientific, the realities of traveling through and living in space are becoming clearer. Exploring, investigating, and living in space pose an expansive series of problems. However, the solutions to the problems faced by mankind's desire to reach beyond the horizon, through the night sky, and into the stars are solutions that will help in all areas of life on Earth.
Ever since the beginning of time there have been stars. Not only stars in the sky, but moons, planets, and even galaxies! Astronomy is defined as the branch of science that deals with celestial objects, space, and the physical universe as a whole. In other words it is the study of space, planets, and stars. Throughout the ages, many people have used astronomy to help them learn about the universe, our own planet, and even make predictions about life itself. Understanding astronomy means understanding where it originated, the different groups/cultures that used it, and modern purposes of the science of the stars.
Since Galileo was an astronomer, he too most likely saw the movement of the star’s placement in the sky as did Copernicus. However due to his support, Galileo was subject to great scrutiny. The introduction states “Galileo was forced to abjure his scientific findings and was sentenced to perpetual house arrest. His books were burned.” (p.191). This action taken by the church shows how the further discoveries made by Galileo incited fear because it went against some of their teachings. Fortunately, his trial became the platform in which his work was saved and circulated throughout Europe, which sure helped him gain supporters, inducing more revolutionary changes in thinking. However, the reason Galileo finding generated more acceptance was not only due to the punishment by the church. In actuality, I think he gained more support because he created an instrument to help him better see and understand the spheres of the world. Although the idea of this instrument was not fully one of his own, he did manage to make one in which he says he “perceived objects satisfactorily large and near, for they appeared three times closer and nine rimes larger than seen with the naked eye” (p.192). Yet, his work did not end there. “It would be superfluous to enumerate the number and the importance of the advantages of such an instrument… I observed often with wondering delight both the planets and the fixed stars …I began to seek (and eventually found) a method by which I might measure their distances apart” (p.192). Actions such as these are why I believe people began to change and believe in a heliocentric system because they were supplied with plausible
One thing us as humans have never been able to fully understand is astronomy. Always having an unexplained mystery, astronomy also has served as a way to keep time and predict the future. The word “astronomy” is defined as the study of heavenly bodies, meaning anything in the sky such as stars, galaxies, comets, planets, nebulae, and so on. Many people, if not everyone, is amazed by the night sky on a clear, moonless night.
Astronomers believe that most galaxies consist of a supermassive black hole at the center, which attracts all constituents of galaxies such as, dust, gases (mainly Hydrogen and Helium), atoms, stars, interstellar clouds and planets to the center by force of gravity, but are not sure whether all galaxies contain a black hole in the center. Galaxies keep moving in relative motion to one another and intermittently can come so close that the force of gravitational attraction between the galaxies may become strong enough to cause a change in the shape of the galaxies, while in exceptional cases, the galaxies may collide. If two galaxies collide, they may pass right through without any effect or may merge, forming strands of stars, extending beyond 100,000 light years in space (World Book Online Reference Centre, 2005). Hence, neighboring and often other colliding galaxies induce the sha...
A year later, using such an early refracting telescope, Galileo Galilei, an Italian physicist and astronomer, noticed the craters and mountains on the moon as well as what was later coined as the Milky Way Galaxy.
The Sun, in turn, is moving in an undulating orbit around the centre of the MIlky Way at 800,000 km/h (ka-boom would be 15 TJ - about a 3.5 kiloton baby nuke), which in turn is moving with the Local Group towards the Virgo Cluster, which in turn...... and so on and so on.