in a star cluster, it is the___ of the stars that determines their diversity of stellar types?
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It's mass.  And its not just in star clusters.  Mass is the only major characteristic of stars.  Almost everything else can be derived (temperature, evolutionary track, luminosity) can be determined by their mass.
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C for Constellations\nWhat else could they be; meteors or satellites? I think not :).
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As many, as there are stars in the universe.
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mostly determined by the genotype and mode of inheritance. Sometimes it can be epigenetic. some rules like mandelian inheritance, random seggregation, imcomplete penetrance, codomminance and give different phenotypes
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By using spectra. Each element has characteristic frequencies of light that it emits or absorbs. If light from the star is spread out into a spectrum (like a rainbow), there will be dark lines for absorbtion and bright lines for emission. By identifying the chemicals that correspond to those lines, we deduce the composition of the star.
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Well, globulars can give you a rough estimage of the age of the galaxy, since they are the oldest stars in the galaxy.  They can also help give you an idea where you are in the galaxy itself...if you are looking at a part of the sky that has a large concentration of clusters, then you are looking toward the center of the galaxy.  Globular clusters form a halo or ring around the center of galaxy.  So, if you see a lot of clusters, then you are looking in the direction of the center.  If you are looking at a part of the sky that has almost no clusters at all, then you are looking away from the center.  If that part of the sky has a lot of galaxies, then you are looking outside of your galaxy.
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milky way is our own galaxy.sThe compositions of stars are determined through spectroscopy. Spectroscopy is the study of something using spectra. Recall from the electromagnetic radiation chapter that a spectrum is what results when you spread starlight out into its individual colors. By noting what absorption lines (or sometimes, emission lines) are present and their strengths, you can find out a tremendous amount of information. Stars have absorption lines patterns similar to the Sun. This means that they are composed mostly of hydrogen and helium with traces of other elements. \n\nFrom these absorption lines you learn some important things beside the star's composition: \n\nStructure of stars: From the simple fact that you see absorption lines in most stellar spectra, you know that the stars must have a hot dense part that produces a continuous spectrum and an outer layer, or atmosphere, made of cooler, low density gas. The general trend is density and temperature of stars decreases as the distance from the star's center increases. The hot dense part is also gaseous because of the extreme temperatures. Stars have no molten rock in them like the interiors of some of the planets. \nmass of stars:\nTo determine the masses of stars, Kepler's third law is applied to the motions of binary stars---two stars orbiting a common point. The greater the combined mass of the two stars, the greater the gravity acceleration is, and, therefore, the smaller their orbital period. A majority of the several hundred billion stars in the Galaxy are in a system with two or more stars orbiting each other. Usually the binary stars are spectroscopic binary stars. A spectroscopic binary system is two stars orbiting a common point at too great a distance away from us to resolve the two stars individually, but whose binary nature is indicated in the periodic shift of their spectral lines as they orbit around each other. Spectroscopic binary stars are used because (a) there are a lot more far away stars than nearby ones and (b) more importantly, you can easily measure their speeds from the doppler shifted lines. \ncolour of star:\nHot stars appear bluer than cooler stars. Cooler stars are redder than hotter stars. The ``B-V color index'' is a way of quantifying this using two different filters; one a blue (B) filter that only lets a narrow range of colors or wavelengths through centered on the blue colors, and a ``visual'' (V) filter that only lets the wavelengths close to the green-yellow band through. \nA hot star has a B-V color index close to 0 or negative, while a cool star has a B-V color index close to 2.0. Other stars are somewhere in between. Here are the steps to determine the B-V color index: \n\nMeasure the apparent brightness (flux) with two different filters (B, V). \nThe flux of energy passing through the filter tells you the magnitude (brightness) at the wavelength of the filter. \nCompute the magnitude difference of the two filters, B - V. \n\nok thats all,
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Spiral, lenticular, elliptical and irregular\n\nSee the link
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Star's are for the most part the same as our star/sun. The difference being we named our star The Sun.
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The origins of stars are dust in the cosmos. All matter of mass be it solid, liquid or gas have magnetism. The attraction of one particle to another is found in the formula of Pi = infinity in accordance with The Theory of Everything \nFor a free copy of the document make your reply to Einstein@peoplepc.com
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well stars are in real more like our sun which gives heat and light, but y they have diff color id coz AS ALL THE STARS ARE NOT AT THE SAME DISTANCE FRM THE EARTH THE LIGHT WHICH TRAVELLS FRM THEM AND REACHES US GIVE THEm COLOR .\n\nLIKE white light has 7 colors in it and each has different wave lenght which means that their light travels on those wave lenghts, and secondly the air in our atmosphere water particles are suspended always and these light passing through them give different wave lenght wch gives us diff color
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Star pattern.\n\n.........*.........\n...................\n*.....*.....*.....*\n.....*.......*.....\n.........*.........\n...................\n*.................*
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Chance.\n\nMany stars in the galaxy are part of binary systems.  As the gaseous nebula that forms a solar system collapses, the mass can distribute in many ways.  The Sun got the majority of the mass, and Jupiter carries much of the residual mass of the solar system (2.5x the mass of the other planets).  If more mass had gone to Jupiter, we might be in a binary solar system.  If the majority of the mass went to Jupiter, it would be the Sun, and vice versa.
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here you go:\n\nhttp://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml\n\nFrom your list it would be nova, but that is for a (relatively) short period of time.
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There are not an infinite number of stars, but there are billions and billions. The universe is not infinte, as we can see close to the end (boundary) of the universe with telescopes like the Hubble. Because there are so many galaxies and clusters where new stars were being born millions of years ago, because the speed of light is also not infinite, no one can really count them.\nhttp://www.cnn.com/2003/TECH/space/07/22/stars.survey/\nFor more, go here:
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They are in a star formation.\n\n--------*\n *----*---*----*\n----*-------*\n--------*\n--*-----------*\n\nFive lines can be formed, with four people in each line.
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Motion towards or away from the observer. This motion in effect changes the wavelength of the light emitted by the star, and it's wavelength that determines the color of light.\n\nA picture is worth a thousand words, so check the animated graphics at this website:\nhttp://www.colorado.edu/physics/2000/applets/doppler.html\n\nNOTE..!  The graphics at the website are for sound waves, but light waves behave the same way.