what are stars that emit radiation pulses called?
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they are called Pulsars.
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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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The burned out centre of a low mass star is a white dwarf. It's a hot ball of carbon and oxygen, though too cool for thermonuclear reactions to occur. They're about the size of Earth and are too dim to be seen with the naked eye.
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If you are talking about shooting stars, they are obviously moving because they are buring out, and they go out with a bang!\n\nStars always seem to twinkle because their force is always moving, the gas makeup seems brighter and darker at times.\n\nOtherwise, the earth is always moving, thats why they seem to never stand still. ( try looking at a planet in a high powered telescope, you only have it in focus for a few moments, then you have to readjust to keep looking at it because of the earths rotation.)
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A very bright "star" that's usually reported is the planet Venus. It rises and sets close to the sun and has therefore in ancient times been given the names Eveningstar and Morningstar. \n\nIf you see a star that sets or rises just hours before or after the sun and is exceptionally bright, you're with highest probability looking at our neighbour planet Venus.
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A source on every star is the continous fusion of hydrogen on it. When the fusion process stops the temperature of the star decreases and atmospheric layers condense on it. Due to the traces of hydrogen present in the atmospheric layers the fusion reactions may start again causing the star to expand 1000 times its original size.This is known as the red giant stage.\n\nDue to the expansion of outer layers star looses some of its mass and after a certain time forms a ball of 1/10^6 times its original size. This is known as the white dwarf stage.\n\nDue to high temperature and intense gravitional field the electrons in their atomic orbitals are forced to occupy higer energy levels.This leads to a pressure on the star and counteracts before the core collapse. This is known as degenerate electron pressure.\n\nIf the mass of the star is greater than 1.4 times than that of our sun the the degenerate electron pressure can't stop core collapse.the star gives out an explosive shock waves known as super nova.\n\nAfter the super nova the gravitional field is so intense that the protons and electrons on the star's surface are forced to combine. This is known as neutron star.\n\nIf mass of the star is 20 times that of the sun then neutron star can't withsatnd the gravitional force and explodes forming the black hole.\n\nThe gravitional force is so intense that the light can also not escape after entering it.if you really want to refer about black holes in deep try google.
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Meteors, Asteroids, comets, Nebula's (gaseous clouds where stars are born) photon stars, Neutron stars, pulsars, quasars, black holes, regular starts like out sun, galactic clusters, spiral galaxies, bar galaxies, moons, and planets, and solar systems.\n\nmetaphsyics1221, black holes are not considered to be a fact, they actually have photos of them
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A pulse of energy - electromagnetic radiation. So anything from radio waves to gamma rays counts as electromagnetic radiation. A pulse of this energy is usually associated with nuclear weapons due to the high intensity of radiation emitted by a thermonuclear reaction.
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Check out college websites. Astros is the solar system. Hence astronate. (cosmos is the universe Russians are cosmonaunts).\nOne research is into the cosmic ray bursts. Where they come from and what is the mechanism they are created. If Earth ever gets a direct hit, that side would be cooked. \nNeutron stars are a combination of these pulsing signals from space and the fact some come from old Nova sites. Hence the physics suggests a very dense, spinning remnant of a star.
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The X-ray and Gamma radiations, which are both pretty much the same, are very high energy electromagnetic radiation. Besides the X-ray machine they are produced by very hot bodies like stars. They are produced by both yang and older stars.\n\n“In stars like our sun, X-ray flares are produced by the hot outer surface, or corona, of the star. The intensity of the X-rays produced is dependant on a number of factors including the star’s age and rotation. Using Chandra, researchers have found “violent” stars that tend to produce flares one hundred times more powerful than those produced by more docile stars. When these super-flares strike the planet-forming disks that surround the star, they can alter the positions of any nascent planets.” http://www.jyi.org/articletools/print.php?id=223 \n\n\nI think this what you were after.\n“The scientists calculated that gamma-ray radiation from a relatively nearby star explosion, hitting the Earth for only ten seconds, could deplete up to half of the atmosphere's protective ozone layer. Recovery could take at least five years. With the ozone layer damaged, ultraviolet radiation from the Sun could kill much of the life on land and near the surface of oceans and lakes, and disrupt the food chain.” \n\nSS
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Yes, there are a few of them, I beleive they are called Quasars, and they fluctuate through the color spectrum. I see one a lot at my camping spot in the summer. I dont have my star chart right now, or i could tell you more about it.
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luminal celestial body of super heated gasses, Stars don't have names per say, they do have classifications like G-2 class of star, which is a yellow main type of star, if you were referring to the name of our sun it is called Sol, and a yellow main type of G-2 class of star to boot.
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The result is there for all of us to see. The stars and other celestial objects are the result of many such nuclear reactions. The sun is a big fusion reactor. Beginning with the lightest elements like helium and hydrogen the process of fusion gives rise to heavier and heavier elements. Some times stars are overcome by their own mass and implode to become a black hole or explode as a supernova releasing enormous amounts of matter and energy into space. In comparison the worlds biggest nuclear bomb will appear like a pop-gun. Will the sun implode or explode. Luckily  - no. But over time it will swell into what is called a red giant, swallowing Mercury and Venus. But I think by the time that happens we would have colonised Mars!
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Stars need hydrogen, period. The fancy name for what happens in the star is thermonuclear fusion, which just means that two hydrogen atoms are fused to make helium, and in the process release a lot of light and energy, allowing the star to shine. So, you know how when you pump up a bike tire, the pump gets hot? That's because you're compressing a fluid (in the case of stars it's hydrogen) and when you compress a fluid the fluid heats up (in this case it's the air heating up the pump). This heating up has to reach 25 million degrees before a star will shine, and the "pump" is gravity in this case. so a star has to have a lot of hydrogen from which to form if it's going to become hot enough to go into thermonuclear fusion.
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Ultra-high energy particles come from all kinds of objects in space:\n\nNeutron stars: \n"    * X-ray burster – a neutron star with a low mass binary companion from which matter is accreted resulting in irregular bursts of energy from the surface of the neutron star.\n    * Pulsar – general term for neutron stars that emit directed pulses of radiation towards us at regular intervals due to their strong magnetic fields.\n    * Magnetar – a neutron star with an extremely strong magnetic field; some magnetars are observed as soft gamma repeaters."1\n\nOther emitters of ultra-high energy particles are:\n\nSupernovae\n"A supernova (pl. supernovae) is a stellar explosion which produces an extremely bright object made of plasma that declines to invisibility over weeks or months. A supernova briefly outshines its entire host galaxy."2\n\nBlack holes\n"A black hole is an object predicted by general relativity[1] with a gravitational field so strong that nothing can escape it — not even light.\n\nA black hole is defined to be a region of space-time where escape to the outside universe is impossible. The boundary of this region is a surface called the event horizon. This surface is not a physically tangible one, but merely a figurative concept of an imaginary boundary. Nothing can move from inside the event horizon to the outside, even briefly."\n\nSo it looks like you get ultra-high energy particles where high energy concentrations impart energy on things which become very highly excited and let off highly energized radiation.  I am not an expert on what is included in the definition of "ultra-high energy" particles, but particles with high energies include neutrinos, photons(gamma rays, x-rays) and matter particles (ions as cosmic wind).
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No. \n\nStar:\nA self-luminous celestial body consisting of a mass of gas held together by its own gravity in which the energy generated by nuclear reactions in the interior is balanced by the outflow of energy to the surface, and the inward-directed gravitational forces are balanced by the outward-directed gas and radiation pressures\n\nPlanet:\nA nonluminous celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves.\n\nSo, stars are self-luminous (have their own light) and are stationary. Planets don't produce their own light and revolve around a star.
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They should be more properly refered to as a "stellar remnant."  When a low mass star runs out of material that it can fuse in the core it puffs off all of it's outer layers and waht is left over is the hot, dense (generally carbon) core of the star.\n\nThe white dwarf is bright due to being very hot, but it will cool over a very long time.  Often times one will see a definition that a true "star" is an object that can suport fusion in it's core.  A white dwarf has no more core fusion, and is mearly a very, very hot ball of ultra-dense carbon (plus some other elements mixed in for fun).