I found an article called, “A Multicolored Starscape: Using Mobile Astronomy Apps to Explain the Stars”. Pleasant spring evenings are fine times to get outside, look up and enjoy the night sky. Of The thousands of stars bright enough to be seen with unaided human eyes, only the brightest few hundred have been given proper names. For the most part, modern astronomy has adopted the Arabic star names that we coined by ancient astronomers on the Middle East, or used Greek and Latin names already in use. Each star radiates a particular color of the rainbow. There are red giants, which are on the verge of shedding their outer layers into space; blue supergiant like Rigel in the constellation Orion, which could potentially go supernova; and ordinary yellow stars like Earth’s sun, which might be stable and warm enough to support like. While virtually all-stars have intensity hot cores fusing with atoms at millions of degrees, the star’s surface temperate vary depending on the stars masses, ages, and composition. Astronomers have created a classification system that is tied to the color of a star’s light, and therefore the star’s temperature. The spectral classes have been given letter designation. The original naming system of A,B,C,D, etc… had been adjusted as more stars were discovered . The result is the modern set lets of O,B,A,F,G,K, AND M. The O-class stars is the hottest are the hottest, and the M-class stars which are the coolest. astronomers use a graph called a Herzsprung-Russel diagram to illustrate the way various classes of stars are related according to their temperature and their intrinsic brightness. The brightness stars are generally the largest, those have evolved off of the main sequence.
The twelfth conceptual objective is, I can explain how astronomers us the Hertzsprung-Russell diagram to study properties of stars. Many of the stars in space are on the main sequence. This sequence scribe what the temperate, size, and classification of a star is. For example large radius stars have a hot temperature, medium stars have a medium temperature, and small radius stars have an even lower temperature. Strs are also divided into three groups red dwarf stars, white dwarf stars, and yellow stars. each of these three different categories have the specific aspects the most common yellow star is the sun.We did a lecture tutorial in class about stars formation and lifetime. This tutorial taught use how the mass of a star affects the lifetime of the star. A start that is very heavy will only live roughly 360 thousand years. While a lighter star will have a life span of roughly 50 billion years. The Hertzsprung-Russel diagram, has all of these Chartists in one graph to make it easier to see the properties of the stars.
This article relates to the conceptual object because it shows how we as astrometrisrate the temperature of stars. Why we use the system we use in this modern time. And also the benefits of using the Hertzsprung-Russell diagram. And how important this diagram is to have, when studying the properties of stars.