What is a T Tauri Star?
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T Tauri stars are a kind of variable star whose brightness varies irregularly. Their spectrum has broad and very intense emission lines, probably indicative of violent surface activity. They may be new stars in the later stages of formation, young stars that are not yet stable main sequence stars.
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kinda, but it isn't a star. it's fragments of space debris, meteors etc, burning up whilst passing thru the earth's atmosphere. From the ground it appears like a star shooting across the sky, hence it's name.
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The star begins as a cool cloud of gas. Under its own gravity, the cloud begins to collapse. As it collapses, it releases its gravitational energy as radiation. So a young star is cool but bright. We usually don't see these proto-stars, however, because they are generally shrouded in dust and only give off light. \n\nThe proto-star continues to collapse, and as it does, it gets hotter and hotter. "Stars" less than a percent of the Sun's mass eventually halt their collapse due to gas pressure. These stars are "brown dwarfs" or "giant planets," like Jupiter. They never ignite their hydrogen, and gradually dim away. \n\nStars larger than about 0.05 to 0.07 solar masses contract, getting hotter and hotter, until their cores are hot enough to begin burning hydrogen. When a star "turns on" its hydrogen-burning phase, we say that it has reached the main sequence, and is a true star, not a protostar, brown dwarf, or planet. The main sequence is a line of stars plotted on the HR-diagram, which represent stars which are burning hydrogen, fusing it into helium. The fusion process in the core releases heat and light, supporting the star against further gravitational collapse, and making it shine. Stars spend most of their life in one spot on the main sequence. Very massive stars live at the top of the main sequence, shining very blue and very bright, while low-mass stars are dim and red. The sun is between these two extremes. \n\nEventually, the hydrogen in the core whose fusion supports the star begins to run out. The core becomes mostly helium (the product of hydrogen fusion), and hydrogen burning moves out away from the core, forming a burning shell around the core. When this happens, the core begins to collapse again, but the outer regions of the star are pushed outwards. The star becomes brighter and cooler. This is the Red Giant stage. When the sun reaches the Red Giant stage, 5 billion years from now, it will likely grow to engulf Mercury, Venus, and the Earth. \n\nIf the star has little mass, it may end its life here, throwing off its outer layers, creating a planetary nebula out of its atmosphere, and a hot, dense "white dwarf" out of its core. The white dwarf shines only by residual left-over heat, and will eventually fade into a mere cinder. Cores of stars at least half as massive as the sun, however, will eventually collapse and heat enough to start burning helium in their cores. Once helium-burining starts, the star decends the giant branch again, reverses its swelling a bit, and lives happily fusing helium in its core, and hydrogen in a shell around the core. \n\nThen the giant dance begins again. The core helium runs out, and the star once again becomes a red giant. Stars like the sun get off the bus here, and become planetary nebulae and white dwarfs. Heavier stars begin burning carbon. This happens over and over again with heavier and heavier elements. The star ascends and descends the giant branch many times. Lighter stars that don't get hot enough in their cores to burn the next element become planetary nebulae and white dwarfs. Stars that are heavy enough eventually heat their cores enough to begin the next stage of burning and descend the giant branch for a while. For each element, the process is quicker and quicker. A star might burn Hydrogen on the main sequence for billions of years, but once this process gets to, say, silicon, the star might burn silicon for only a few days. \n\nA very massive star, more than 5-10 times solar mass, will ascend and descend the giant branch many times, until the star is ready to burn iron. But iron fusion doesn't release energy; it sucks it up. So what happens is that the star is ascending the giant branch, its iron core is collapsing and heating, until iron is ready to fuse. As soon as it does, though, it absorbs all of the heat around it, chilling the core. All fusion abrubtly stops, and the star implodes. The rebou
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yes there is. Solaris is the North Star.  As you may realise by the name if you can spot it it will point you towards the north direction so long as you are in the northern hemisphere.  It is the only star in the sky that does not appear to move as observed from planet earth.
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The sun is really yellow and if you were on a planet far far away and looked at our sun, depending on how far you really are (faint stars are hard to make out period), you'd see a star with a yellowish tinge.\n\nYou can go out on your backyard on a clear night and see stars of various colors.\n\nCapella is a bright yellow star in Auriga, Betelgeuse is a red star in Orion, etc.\n\nStars come in various colors: white, red, blue, yellow.\n\nYou can mainly tell how hot a star is by its color: I believe the order is blue(hottest), white, yellow, red (coolest).\n\nLight is radiation, things at different temperatures radiate different wavelengths of light. You can see this in real life: A candle flame is yellow, but a blowtorch, which is much hotter, is blue.\n\nColor also gives astronomers an indication of how old the star is: Stars cool down as they age, so a red star would be very old and on its way to dyinng (Betelgeuse is a red supergiant star, on its way out), while white and blue stars are more recently formed
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Alpha Centauri is the brightest star in the constellation Centaurus and 3d-brightest star in the sky; also known as Rigil Kent or Rigil Kentaurus; 1992 position R.A. 14h39.1m, Dec. −60°49′. It is a yellow main-sequence star of the same spectral class (G2 V) as the sun and of about the same size and mass; its apparent magnitude is −0.26. Actually, Alpha Centauri is a triple-star system, the components being designated A, B, and C. Alpha Centauri C is also called Proxima Centauri because it is the closest star to the earth (other than the sun), at a distance of 4.28 light-years, components A and B are currently 4.34 light-years away. Proxima Centauri orbits about the common center of mass of the system with a period of more than 250,000 years, so that in about 125,000 years it will be more distant than A and B.\nThis is not counting the sun, friend.
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Taurus\n\nCapricorn & Taurus \n\nWhen Taurus and Capricorn come together in a love match, it's a practical, sensible partnership. These two Signs share a certain down-to-earth logic and interest in efficiency. Taurus is not interested in risking more than is necessary in terms of emotional connection and involvement, and Capricorn is similarly disinterested in risk, but more in terms of money and career. Capricorn's career is one of the great focuses of their lives; they're interested in scaling the heights and tend to set very high standards for themselves to adhere to. Taurus has high standards as well, but regarding love, relationships and possessions. \n\nThese two Signs admire one another's dedication and strength, but, while they have this in common as well as a dependable, realistic, somewhat conservative approach to life (Capricorn more than Taurus), a love relationship between them can go stale fast. The problem? They're actually rather different at their cores. Taurus may begin to find Capricorn too conservative and restrictive; Capricorn may start to think Taurus is too lazy and doesn't care enough about career and status. If Taurus can encourage Capricorn to relax a little and appreciate the fruits of labor, and if Capricorn can help motivate Taurus to achieve goals and make dreams a reality, their union can be smooth, happy and long-lasting. \n\nTaurus is ruled by Venus (Love) and Capricorn is ruled by Saturn (Karma). Venus is a warm, feminine energy while Saturn is a cold masculine energy. Venus is all about sensual pleasures, the aesthetics of love, the beauty of art. All of these stimulate Taurus and heighten their appreciation of life and love. Saturn, on the other hand, is about hard work and discipline to achieve goals. Taurus will show Capricorn how to enjoy a well-deserved break every so often and how to appreciate beauty and comfort. Capricorn can teach Taurus to be more disciplined and to keep reaching out for what one wants. \n\nTaurus and Capricorn are both Earth Signs. This couple loves to indulge in material possessions. They want to possess and be surrounded by beautiful things -- a lovely home, designer clothing, luxurious cars, works of art. Since they're both such hard workers, they can usually attain all these things, and hardly ever need fight about impracticality or overindulgence. \n\nTaurus is a Fixed Sign and Capricorn is a Cardinal Sign. Taureans won't change their minds once they're made up. They possess a quiet, steadfast determination. Instead of finding this dull or restrictive, Capricorn regards it as a good, comforting thing: Taurus is clearly dedicated to the relationship. \n\nWhat's the best aspect of the Taurus-Capricorn relationship? The similarity of their values and their dedication to the same goals. Both partners enjoy luxury and nice things, and they share resources well. Their mutual interests make theirs a highly compatible relationship.\n\n\nCapricorn & Cancer \n\nWhen Cancer and Capricorn make a love match, it's a celestial pairing of great tenacity and determination. Capricorn, the Sea Goat, is focused on logic, on being down-to-earth and real; Cancer brings a charge of emotional intensity to the relationship. Both hold one another to high standards tempered by an abiding mutual respect. In a Capricorn mate, Cancer finds dedication, and in return Capricorn comes to love Cancer's persistence. These two Signs from opposite sides of the Zodiac can come together to create a very successful and secure connection. \n\nThis relationship builds and grows from a strong foundation of material and emotional security. Both Signs can be depended on to make frugal, conservative decisions. It doesn't have to be all solemnity, though, as Cancer can help their hard-working Capricorn lover to relax a little at the end of the day, to take time to enjoy the rewards of all that labor. Cancer will also be the one to polish and preserve the
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taurus and cancers make a good match...check your horoscope on yahoo.  you can check your compatability with other signs
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if i am not mistaken, tres marias/tatlong maria, are the three bright bluish stars namely, Alnitak, Alniham and Mintaka, comprising the belt of the constellation Orion. they are just three of the seven stars of the Mighty Hunter of mythology (Orion). you from the philippines? if then, and if weather permits, you can see it tonight at almost overhead, slightly to the west.
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A star is basically a giant hydrogen bomb. It sits in space for billions of years fusing hydrogen into helium, creating loads of light and heat, among other things.\n\nA planet orbits a star, and is just a piece of matter that does not perform nuclear fusion. Some of them are rocky balls (like the Earth, or Mars), while some of them are giant balls of gas (like Jupiter, or Saturn).\n\nEDIT: fungusbrains1, planets twinkle too. They don't produce their own light, but they reflect light from the Sun. Any cosmic object whose light rays pass through the atmosphere twinkles.
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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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Proxima Centauri is a puny whimper of a star, a red dwarf (spectral type M5.5 V). It is gravitationally bound to Alpha Centauri, a double star system. It consists of Alpha Centauri A and Alpha Centauri B. A and B are stars very much like the sun (spectral type G2 V and K0 V) except they orbit around a common center of gravity. Although being the closest star to earth Proxima is so faint it can only be seen with a telescope (from the southern hemisphere to boot). Not even Alpha Centauri, despite being TWO stars, is the brightest star in the night sky. But what Proxima misses out in brightness it makes up for in longevity. The sun, you may know, is in it´s main sequence right now and it will remain there for atleast a few billion years more. That may seem like a long time but proxima will remain on the main sequence for a TRILLION years!
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Here is a site that shows the cyle of a star http://www.enchantedlearning.com/subjects/astronomy/stars/lifecycle/\n\nHope it helps you!
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They are called extrasolar planets, and there is great info about them at the following sites\n\nhttp://www.nineplanets.org/other.html\nhttp://curious.astro.cornell.edu/extrasolarplanets.php\nhttp://en.wikipedia.org/wiki/Extrasolar_planets\n\nFor a definitive list, try this site\nhttp://en.wikipedia.org/wiki/List_of_stars_with_confirmed_extrasolar_planets\n\n55 Cancri is an interesting one, as many feel it has similar characteristics to earth\n\nhttp://curious.astro.cornell.edu/question.php?number=135\n\nHope that helps!
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I think people who are Taurus' are stubborn, work-a-holics who don't understand peoples emotions.  They are very driven individuals.
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The best way to compare other stars to the sun is to talk in terms of\n\nTheir size: how many solar diameters are they?\nTheir mass: how many solar masses are they?\nTheir brightness: how does their luminosity compare to the sun = 1?\n\nMorgan-Keenan spectral classification\nThis stellar classification is the most commonly used. The common classes are normally listed from hottest to coldest (with mass, radius and luminosity compared to the Sun) and are: \n\nClass Temperature Star colour Mass Radius Luminosity \nO 30,000 - 60,000 K Bluish ("blue") 60 15 1,400,000 \nB 10,000 - 30,000 K Bluish-white ("blue-white") 18 7 20,000 \nA 7,500 - 10,000 K White with bluish tinge ("white") 3.2 2.5 80 \nF 6,000 - 7,500 K White ("yellow-white") 1.7 1.3 6 \nG 5,000 - 6,000 K Light yellow ("yellow") 1.1 1.1 1.2 \nK 3,500 - 5,000 K Light orange ("orange") 0.8 0.9 0.4 \nM 2,000 - 3,500 K Reddish orange ("red") 0.3 0.4 0.04 \n\nThese classes are further subdivided by Arabic numerals (0-9). A0 denotes the hottest stars in the A class and A9 denotes the coolest ones. The sun is classified as G2.\n\nSpectral types\n\nClass O\nClass O stars are very hot and very luminous, being bluish in colour; in fact, most of their output is in the ultraviolet range. These are the rarest of all main sequence stars, constituting as few as 1 in 32,000. O-stars shine with a power over a million times our Sun's output. \n\nExamples: Zeta Puppis, Epsilon Orionis \n\nClass B\nClass B stars are extremely luminous and blue. As O and B stars are so powerful, they live for a very short time. They constitute about 0.13% of main sequence stars -- rare, but much more common than those of class O.(\n\nExamples: Rigel, Spica \n\nClass A\nClass A stars are amongst the more common naked eye stars. As with all class A stars, they are white or bluish-white. They comprise perhaps 0.63% of all main sequence stars.\n\nExamples: Vega, Sirius \n\nClass F\nClass F stars are still quite powerful but they tend to be main sequence stars. Their colour is white with a slight tinge of yellow. These represent 3.1% of all main sequence stars.\n\nExamples: Canopus, Procyon \n\nClass G\nClass G stars are probably the best known, if only for the reason that our Sun is of this class. Supergiant stars often swing between O or B (blue) and K or M (red). While they do this, they do not stay for long in the G classification as this is an extremely unstable place for a supergiant to be. These are about 8% of all main sequence stars. \n\nExamples: Sun, Capella \n\nClass K\nClass K are orangish stars which are slightly cooler than our Sun. Some K stars are giants and supergiants, such as Arcturus while others like Alpha Centauri B are main sequence stars.  These make up some 13% of main sequence stars.\n\nExamples: Arcturus, Aldebaran \n\nClass M\nClass M is by far the most common class if we go by the number of stars. All the red dwarfs go in here and they are plentiful; over 78% of stars are red dwarfs, such as Proxima Centauri. M is also host to most giants and some supergiants such as Antares and Betelgeuse, as well as Mira variables. \n\nThe red color is deceptive; it is because of the dimness of the star. When an equally hot object, a halogen lamp (3000 K) which is white hot is put at a few kilometers distance, it appears like a red star.\n\nExamples: Betelgeuse, Barnard's star \n\nSpectral types for rare stars\nA number of new spectral types have been taken into use for rare types of stars, as they have been discovered:\n\nW: Up to 70,000 K - Wolf-Rayet stars. \nL: 1,500 - 2,000 K - Stars with masses insufficient to run the regular hydrogen fusion process (brown dwarfs). Class L stars contain lithium which is rapidly destroyed in hotter stars. \nT: 1,000 K - Cooler brown dwarfs with methane in the spectrum. \nC: Carbon stars. \nR: Formerly a class on its own representing the carbon star equivalent of Class K stars, e.g. S C
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TAURUS goes best with Virgo, Capricorn, Cancer and Pisces.