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The processes of the life cycle of the star
The processes of the life cycle of the star
Life cycles of stars
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The name of my star is Betelgeuse. Its distance from the Earth is estimated to be about 650 light years away. Betelgeuse’s location is; right ascension: 05 hours 55minutes and 10.3 seconds with its declination: +07 degrees 24 minutes 25 seconds. When comparing Betelgeuse to the sun we can begin to appreciate this giant star’s enormous proportions. The sun’s distance from Earth is only 146 million km compared to the massive distance of Betelgeuse from the Earth being estimated at 9.3 trillion km. The radius of Betelgeuse is 1000 times that of the sun, with its mass 20 to 30 times larger. In the Northern Hemisphere, Betelgeuse can be easily seen with the visibility being at its peak in the winter months. This star is orange-red in color …show more content…
The dimmer the star the higher its apparent magnitude will be. Apparent Magnitude is used to measure how bright a star is to the human eye. Absolute Magnitude is the measurement of how bright a star actually is. By comparing the magnitude of Betelgeuse to that of the sun the numbers are as follows; Betelgeuse has an apparent magnitude of .41 with an absolute magnitude of -7.2. The sun has an apparent magnitude of -26.8 and an absolute magnitude of 4.8. This means that the sun looks brighter to us than Betelgeuse by our own eyes but in actuality the sun is …show more content…
The smaller the star the longer it will live. The larger the star the more of its fuel is used up. Betelgeuse is thought to be only 10 million years old compared to the sun’s age of 4.5 billion but because of its size being 20 times that of the sun, Betelgeuse is thought to be at the end of its lifespan. It is thought that within the next million years Betelgeuse will explode into a supernova. When this happens, scientist believe, that the explosion will be as bright as the moon in our sky and will last for several weeks and may be visible even during the day. The explosion of Betelgeuse will not affect earth due to the distance between the celestial bodies being so massive. It is thought that when the sun has used up all of its fuel and finally explodes even though it will not be a supernova like Betelgeuse, the sun will take earth with it. Thankfully, the sun’s life expectancy is considerably longer than Betelgeuse by a span of 4.5 billion
From the book The Warmth of Other Suns, the author Isabel Wilkerson writes of the economic disparity and the abject poverty suffered by African Americans during the reconstruction. “Sharecropping, slavery’s replacement, kept them in debt and still bound to whatever plantation they worked. But one thing had changed. The federal government had taken over the affairs of the South, during a period known as Reconstruction, and the newly freed men were able to exercise rights previously denied them. They could vote, marry, or go to school…even college set-up by northern philanthropists, open businesses, and run for office under the protection of northern troops.”
Perseus, or “the hero,” has twenty-eight stars. The brightest, most recognizable ones are Mirfak and Algol. Mirfak is the brightest star of Perseus. It is a little bit brighter than Polaris, the North Star. Algol is the most famous star. In the constellation, Algol is the eye of Medusa, translating to “demon star.” People used to think that Algol was cursed due to its constant change in brightness, but we know today that sometimes another star overlaps Algol, causing its magnitude to appear to change. Perseus has six stars with confirmed planets. (Coder pp. 85 & 87, Fanshawe, Perseus Constellation, Perseus Hero)
The constellation Perseus is located with a right ascension of 3 hours and declination of 45 degrees (Dolan, Chris). Perseus is visible from August to March in the northern hemisphere. The constellation Pegasus has a right ascension of 22 hours and a declination of 20 degrees (“Pegasus”). Pegasus is visible from July to January.
The constellation Canis Major contains the brightest star in the night sky, Sirius B, a blue-white star 8.16 light distant and radiating more than 20 times the energy of our own sun. An actual fact, Sirius B has a companion star, the other white dwarf Sirius A. Sirius B used to be a main sequence star, but now it has shrunk into a white dwarf star.
In this essay, I will analyze and evaluate why people were willing to accept Sun Ra’s message and the influence Sun Ra had on the philosophical ideologies of Afrofuturism. I also argue that the adopted persona and music of Sun Ra were highly influential in building the foundations for creating an ideological cultural movement that sought to alleviate the African Diaspora from the ‘collective trauma of capture, theft, abduction, mutilation, and slavery’ thus pioneering
Stars explode at the end of their lifetime, sometimes when they explode the stars leave a remnant of gasses and, dust behind. What the gasses come together to form depend on the size of the remnant. If the remnant is less than 1.4 solar masses it will become a white dwarf, a hot dead star that is not bright enough to shine. If the remnant is roughly 1.4 solar masses, it will collapse. “The protons and electrons will be squashed together, and their elementary particles will recombine to form neutrons”. What results from this reaction is called a neut...
Well, it all depends on the different gases in the Earth's atmosphere and the height the gas is in. The red around the arc, cloud, or streak shapes are nitrogen molecules they're low in the atmosphere at about "100km/60 miles" (www.athropolis.com) yet the red in the shape is oxygen in a high altitude "above 300km/185 miles." (www.athropolis.com) The yellow/green color is oxygen in low altitude "between 100-300km/60-185 miles." (www.athropolis.com) The blue and purple are hard to see in nights sky but they are created by hydrogen and helium in high altitude Some of them move, brighten, or flicker all of a sudden. You could see them more "during the most intense phase of the 11 year sunspot cycle." (The World Book Encyclopedia, 895-896)
The idea of interstellar space travel has been discussed for many years between many scientists and engineers since 1950s (Adelman, 180). It has not only been discussed but also demonstrated in science fiction literature. By getting the knowledge of interstellar travel, people wonder when will we be able to travel between stars and if it is even possible to reach another star other than the sun. However, others wonder “what is the point of spending so much money on something that it isn’t possible?” or “why do we have to study another star when we have the sun that light our day?” The answers to those two questions are; one day our sun will become a red giant and end the life of earth and the second reason a nearby supernova can affect our solar system (Mallove, pg .4). In order to escape from these tragedies, we need to find a way to be transported to another star. Dr. Leslie Robert Shepherd, nuclear physicist and member of The British Interplanetary Society, first published a paper on “Interstellar Flight” in 1952. From then on The British Interplanetary Society kept the research on “Interstellar Space Travel” throughout its history (The Telegraph, 2012). Our research question is “Can we ever reach other stars other than the sun?” This paper will explain the challenges of interstellar flight, ways to travel into space and finally projects that had appeared during the years of research.
But despite the mid-infrared, each Alpha Centauri star will remain millions of times brighter than the planets that scientists are trying to locate and observe. This is where VISIR will utilize the coronagraphy method to reduce the stellar light of the Alpha Centauri stars. The coronagraphy method is used to see objects that reside very close to their parent star, for example, if an alien scientist was observing Mercury next to Sol.
Sunspots are the most apparent features on the Sun’s surface or photosphere. Anyone could use a filter such as a welder’s helmet to observe groups of sunspots. A sunspot consists of two regions, the umbra and the penumbra. The temperature of the umbra can be as low as 4,000 K and the penumbra that surrounds the umbra has a temperature of about 5,500 K which contrasts to the photospheric temperature of 6,000 K. The difference in temperatures makes the sunspots appear dark against the brightness of the
The Star Betelgeuse is classified as the ninth brightest star in the night sky and is the second brightest star in Orion's’ constellation. Betelgeuse is a very unique star in the sky when it is compared to other stars.Betelgeuse is classified as a high mass star. Some introductory facts about the star include its luminosity, which is 140,000 suns, temperature is 3,488 Kelvin, its distance from the sun is 640 light years, radius compared to the sun is 667 times the sun, its apparent magnitude is 0.43, its color on the Hertz sprung- Russell diagram is orange and it is one of the most brightest stars that we have studied. The life of Betelgeuse will be shorter than lower mass stars, which lower mass stars’ lifespan
The Sun is the most prominent feature in our solar system. It is the largest object and contains approximately 98% of the total solar system mass. One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths. The Sun's outer visible layer is called the photosphere and has a temperature of 6,000°C (11,000°F). This layer has a mottled appearance due to the turbulent eruptions of energy at the surface.
Our sun is the central pivot point to which or entire planet and solar system is built around. With out it all life on our planet would cease to exist. Within this paper we will explore how our Sun and solar system formed and came to resemble what we see today.
Supernovas are extremely powerful explosions of radiation. A supernova can give off as much energy as a Sun can within its whole life. A star will release most of its material when it undergoes this type of explosion. The explosion of a supernova can also help in creating new stars.
Venus, the second planet closest to the Sun and Earth’s closest neighbor, is known for its many wonders and harsh conditions. Venus is possibly the first planet discovered by humans and is said to have been first discovered in 17 B.C. by Babylonian astronomers. Venus is the first planet to be explored by spacecraft although many of these attempts have proven unsuccessful. Fortunately, more than twenty of the spacecraft explorations been proven successful, and through those we have gained knowledge about this wonder of the night sky.