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Earth acquaintance EssayStars be one of the celestial bodies found in the solar system. Such celestial physical object produces heat, light, and different forms of radiations such as x-rays and ultraviolet rays caused by its cosmic energy engines. All stars are do up of gas, plasma, and matters comprised of subatomic particles that are extremely heated. From the earth, it may appear that stars are move up because of their radiance incandescence over. However, stars are very far away that most of the scientists have to develop methods in order to see their distance. Two of the most notable methods are the parallax technique and the use of Cepheid variable ( study Geographic, 2008). The parallax technique is used in order to identify the distance of the stars that are closest to the earth. Due to the revolution of the earth to the sun, the stars that are near to the earth shifts position against the stars that are in farther positions. These changes in the position of the ne arby stars are know as the parallax shift. The parallax method functions by observing the distance of the shifting process and determining the earths orbit diameter.From there, astronomers are able to determine the parallax angle of the stars distance. The main principle puke the method is that the smaller the parallax shift, the farther away the star is from the earth (Windows to the Universe Team, 2000, n. p. ). Such method is still applicable for stars that are within the range of few hundred light years from earth. Thus, when stars exceed the habituated range, the parallax shift could be too small to be accountd through this technique (Windows to the Universe Team, 2000).For the non-finite distant stars that are in the range beyond 100 light years and are in clusters found in a different galaxy, the measurement is identified through the stars home known as Cepheid variable. Stars that have this proportion undergo a fixed cycle where they get brighter and dimmer. This prop erty is common among stars that are in old age (Berger, 2002, n. p. ). Because of their abundance in space, astronomers measure their distance by determining the number of cycle when stars are bright (Berger, 2002).There are many ways to measure the distance of the stars. It may be obtained from the stars spectral properties, temperature, brightness, and luminosity. Because of the major efforts in improving the measurements of the distances of the stars, various ways are also formulated in order to determine the cosmic distance of other celestial bodies inaugurate in the sky. References Berger, W. H. (2002). Measuring distance to the stars. In Intro to Astronomy Discussion of the Field of Astronomy, University of California, San Diego.Retrieved September 17, 2008 from http//earthguide. ucsd. edu/virtualmuseum/ita/06_3. shtml. National Geographic. (2008). Stars. Retrieved September 17, 2008 from http//science. nationalgeographic. com/science/space/universe/stars-article. html Window s to the Universe Team. (2000, September). How do astronomers measure the distance to stars? Is it close? University Corporation For Atmospheric Research. Retrieved September 17, 2008 from http//www. windows. ucar. edu/tour/link=/kids_space/star_dist. html.