Stars

characteristics in the star. The Vega star is 25 light years away from the earth and the mass is 2.1 times bigger than the sun. It is about 455 million years old and each rotation period is 12.5 hours. The diameter is about 2.2 million miles, which is 2.5 times the Sun, the temperature is approximately 17,000 F (9,500C), the luminosity is about 40 times the Sun’s size, and the star type is is a white main sequence star, so it is in A class. Since it is a main sequence star, it fuses hydrogen…

An astronomical star catalogue lists stars by number according to different criteria (such as their magnitude), which can provide insight into the positions of stars, how they change over time, and even the history and culture of the astronomers who create these catalogues. As early as the 2nd millennium B.C.E, star catalogues have been kept (Van der Waerden); they can be seen all over the world and across cultures, increasing in breadth over time as the technology of telescopes advanced and…

How Stars Came to be and Their History The radiance of the stars is masked in secrecy. Only those who wish to ponder the vastness of the stars can be enlightened to their true beauty; their ability to create something from nothing is astounding. People revel at the beauty of the stars, generally enjoying a night under the twilight sky. The stars hold so many mysteries that are seldom ever questioned, but how many people ever wonder where the stars come from? How long a star’s lifespan is or why…

When a star is born it can take one of two paths. It can either take the path of a high mass star or the path of a low mass star. A high mass star will be between 10-50 solar mass and a low mass star will be between .8-10 solar masses. One solar mass is equal to M⊙ = (1.989±0.004) x 1030 kg, which is A LOT. Either path it takes, the one of a high mass or low mass star it will live about 90% of it’s lifetime in its main sequence. Once achieving nuclear fusion the star slowly contracts over…

The Life Cycle of Stars The life cycle of a star is an incredible, miraculous phenomenon that begins with just two elements: helium and hydrogen. The result is the all well known star that is seen twinkling in the night sky and also what lights up the day here on Earth. There are hundreds upon thousands of stars that take on many different sizes and colors. Depending on the size of the star from its birth, the star could take two paths at the end of its life: turn into a nebula leaving behind a…

Nasa’s spitzer and Hubble space telescopes have discovered a massive galaxy creating more and more new stars. The way that this massive cluster has been formed so quickly is by feeding off gases from other galaxies. Tracy Webb of McGill University explained that usually a star in the center of a galaxy is old and dead, but this new cluster within this rare galaxy is creating new stars very quickly by merging with other smaller galaxies. Clusters are families of galaxies bound together by the…

The influence high mass stars have on our Universe is that they create and affect many other bodies in space. For example, when they explode, they create supernovas and eventually those supernovas create black holes. They also are very beautiful and powerful. A high mass star starts out in a nebula and is created by the matter that lies in the nebula. When the hydrogen gas is forced together due to gravity, the star begins to spin and reach extreme temperatures. It gets so hot that it begins…

Diagram Lab-Plotting the Stars Part I: Introduction 1) One method scientists use to measure the distance of the star is called parallax. Parallax shift is when closer stars shift positions against the farthest stars. In order for astronomers to measure that distance, they measure the distance of the shift, also considering the diameter of the Erath’s orbit. Then the angle of the parallax is measured. The smaller the angle of the parallax shift is, the farther away the star is from the earth…

A first generation star would be made of mostly lighter materials rather than planets formed later. Since the Universe was originally made up of light elements (Hydrogen and Helium), the planets that would've been formed then would probably be mostly gas giants or planets that lack heavier elements or metals. The planets that are in the process of forming today are most likely going to be made of more heavy elements, since the dust in the nebulae have had time to condense and form heavier atoms…

The Star of David was a six pointed hexagram that did not originate from Judaism, however it affected a large amount of the Jews lives, it also contributed to amulets…