what's the name of nearest and farest star to earth after sun? also the name of first star that's discovered?
445045
Nearest star -- Proxima Centauri (or Alpha Centauri C) is 4.22 light-years away \nFarthest star -- Unknown. There are other galaxies as far as 13.7-billion light years away with stars, but we can't measure their individual distances\nFirst discovered -- Unknown. Who or whatever animal first looked up at the night sky and saw a star untold millions of years ago
331809
science_FREAK, you think the furthest star is just 82 million km away????!!!  That wouldn't even take us out of our own solar system!  In fact, our star, the Sun, is 150 million km away!\n\nIf you mean why do some stars "appear" brighter than others, then that is because stars are at different distances from the Earth, and they are different sizes.  IF you had 2 identical stars, but one was twice the distance from the Earth that the other, then the further away one would appear much dimmer in the sky.\n\nBut all stars shine with a slightly different brightness, I doubt that any two are identical.  So the appearance of some stars being brighter than others is down to size of stars and how far away from us that they are.
1136056
Because of its proximity to the earth, and because it is such a typical star, the sun is a unique resource for the study of stellar phenomena. No other star can be studied in such detail. The star closest to the sun is 4.3 light-years (4 × 1013 km/2.5 × 1013 mi) away. To observe features on its surface comparable to those that can be seen routinely on the sun would require a telescope almost 30 km (18.6 mi) in diameter. Such a telescope, moreover, would have to be put into space to avoid distortions caused by the earth's atmosphere.\n\n    The Sun is an ordinary G2 star, one of more than 100 billion stars in our galaxy.\n\n \n\n        diameter:    1,390,000 km.\n        mass:        1.989e30 kg\n        temperature: 5800 K (surface)\n                     15,600,000 K (core)\n   The Sun is by far the largest object in the solar system. It contains more than 99.8% of the total mass of the Solar System (Jupiter contains most of the rest). \n   The Sun is personified in many mythologies: the Greeks called it Helios and the Romans called it Sol. \n\n   The Sun is, at present, about 75% hydrogen and 25% helium by mass (92.1% hydrogen and 7.8% helium by number of atoms); everything else ("metals") amounts to only 0.1%. This changes slowly over time as the Sun converts hydrogen to helium in its core. \n\n \n\n   The outer layers of the Sun exhibit differential rotation: at the equator the surface rotates once every 25.4 days; near the poles it's as much as 36 days. This odd behaviour is due to the fact that the Sun is not a solid body like the Earth. Similar effects are seen in the gas planets. The differential rotation extends considerably down into the interior of the Sun but core of the Sun rotates as a solid body. \n\n   Conditions at the Sun's core (approximately the inner 25% of its radius) are extreme. The temperature is 15.6 million Kelvin and the pressure is 250 billion atmospheres. At the centre of the core the Sun's density is more than 150 times that of water. \n\n   The Sun's energy output (3.86e33 ergs/second or 386 billion billion megawatts) is produced by nuclear fusion reactions. Each second about 700,000,000 tons of hydrogen are converted to about 695,000,000 tons of helium and 5,000,000 tons (=3.86e33 ergs) of energy in the form of gamma rays. As it travels out toward the surface, the energy is continuously absorbed and re-emitted at lower and lower temperatures so that by the time it reaches the surface, it is primarily visible light. For the last 20% of the way to the surface the energy is carried more by convection than by radiation. \n\n    The surface of the Sun, called the photosphere, is at a temperature of about 5800 K. Sunspots are "cool" regions, only 3800 K (they look dark only by comparison with the surrounding regions). Sunspots can be very large, as much as 50,000 km in diameter. Sunspots are caused by complicated and not very well understood interactions with the Sun's magnetic field. \n\n   A small region known as the chromosphere lies above the photosphere. \n\n    The highly rarefied region above the chromosphere, called the corona, extends millions of kilometers into space but is visible only during eclipses (left). Temperatures in the corona are over 1,000,000 K. \n\n   The Sun's magnetic field is very strong (by terrestrial standards) and very complicated. Its magnetosphere (also known as the heliosphere) extends well beyond Pluto. \n\n    In addition to heat and light, the Sun also emits a low density stream of charged particles (mostly electrons and protons) known as the solar wind which propagates throughout the solar system at about 450 km/sec. The solar wind and the much higher energy particles ejected by solar flares can have dramatic effects on the Earth ranging from power line surges to radio interference to the beautiful aurora borealis.  \n\n   The solar wind has large effects on the tails of comets and even has measurable effects on t
871143
Largest known to date is the "puffy planet" HAT-P-1b orbiting the sunlike star ADS 16402 B, one of a binary pair of G0 V stars 450 light yeard away, in the constellation Lacerta. Our sun is of spectral class G2 V i.e. a little cooler than ADS 16402 B.\n\nHAT-P-1b has a radius of 1.36 x the radius of Jupiter. \n\nIt was discovered on 13 September 2006 and is 450 light years away. It has the lowest density of any known extrasolar planet. It also has the name Krais.\n\nIt was announced as follows:\n\n"Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402 AB. This system is a pair of G0 main-sequence stars with age about 3 billion years, at a distance of ~139 parsecs and projected separation of ~1550 AU. The transit signal has a period of 4.46529 days."\n\nNote: Only the radii of transiting planets are known.
104284
The Sun named Sol is definitely not only the brightest star, but the brightest celestial object visible from Earth.  However, if you're talking about the night sky (excluding the sun), then the brightest star would be Sirius A.
480373
stars, planets, comets, meteors
444499
The brightest star as seen from the Earth is Sirius, not the sun, whose scientific name is Helios, nor the North Star, whose name is Polaris.  Sirius is located in the constellation Canis Major.  It is also known as the Dog Star.\n\nhttp://en.wikipedia.org/wiki/Sirius
410269
Largest Star (By Size) - VV Cephei - 1900 times diameter of sun\n\nMost Luminous Star - LBV 1806-20 - 40,000,000 times luminous than the sun\n\nHowever, the brightest objects in our universe are the quasars... Check the links below for more info\n\nI hope these were the answers u were lookin for...
126155
I believe it is still a morning star.  Note that when Venus is brighter as a morning star than a evening star.  As a morning star, it has an apparent magnitude of around -4.5.  As an evening star it has an apparent magnitude of around -3.7.  However, not many people are up before sunrise to watch this event, so we most likely can only see it as an evening star which is next year.\n\nAlso, it is not a star, it is a planet.  The term "star" is used because it essentially looks like a brilliant star.
70056
The sun. The sun is, on average, 93 million miles from the earth. Pluto orbits the sun over 2 billion miles away. The nearest star is over 4 light years away. (Light travels 186,000 miles, or about 300,000,000 meters, in a second - try figuring out how far that is in a year!) The nearest galaxy is over 4 million light years away - an amazing distance!
243085
I was gonna look up tonight, but I forgot which way up is again :)\n\nSeriously though folks....Orion is a cool constellation for sure. If you've got a fairly high-powered set of binoculars you can get a neat view of the Orion Nebula (M42). Sweep the binoculars slowly in the area below the three belt stars and you should pick it out.\n\nAlso, the red giant star Betelgeuse is in Orion. It's the bright, orangeish star. It's 520 light years away, with a diameter between 480-800 million miles. If Betelgeuse was where our Sun is, its outer layers would extend out to the orbit of Mars. It's also a prime candidate to become a supernova!\n\nGod is spelled B-I-G B-A-N-G\nPBrax@netscape.com
434755
Well, it's my understanding that there are some sites that mistakenly think/portray some stars to be unnamed. Basically, all "stars" visible to Earth by earthly means or extra-earthly means (satellites, etc.), already have designated names/numbers. I like to think that naming a star after someone is meant in the best of intentions. So, if you go to the Hubble Space Telescope website, or maybe NASA website, you might be able to enter the coordinates of your friend's "star" and hopefully see a picture of it.
1046417
The Sun is the closest star to Earth.\nThe sun is a huge mass of hot glowing gas.\nAt its visible surface the heat is over 5500*C  i.e. 10,000*F.\nInside calculations showed that its temperature is about 15 million degree C.  i.e. about 27 million degree F.
633987
There are a lot of red stars in space. From Nasa's web site: "There are many normal red stars near the Sun, with temperatures of a few thousand degrees and masses much less than that of the Sun. None, however, is bright enough to be seen without a telescope. All of the bright red stars in the night sky are red giants and supergiants, counted among those we term abnormal stars. Examples are the supergiants Betelgeuse in Orion and Antares in Scorpius (each about 520 light years from Earth) and giant Aldebaran (68 light years) in Taurus."
527123
Just to let you know you are not really naming a star, it's just a piece of paper.  The only way you can name a star for free is if you discover it!  Good luck!
651175
If you want to know the names of celestial objects, you need to be familiar with landmarks in the celestial sphere, such as Polaris, the Big Dipper, Orion, etc. These are easy to find constellations and stars that provide guides to harder to find objects. Get a star gazing guide, or the excellent Starry Night Pro software: http://www.starrynight.com/ .\nIf you mean how to tell satellites from planets and stars, note that objects near Earth do not scintillate (twinkle) like stars. Most satellites move very fast, and are obviously moving too fast for the Earth's rotation to be the only cause. Planets are extremely bright compared to stars and do not scintillate.\nDon't expect to see nebulas and other faraway objects without a (good, not department store style) telescope or a strong pair of binoculars. The only galaxy you can see with the naked eye is our own, the Milky Way, and at that only in non-light polluted areas. I have never seen the Milky Way from NYC, but from the equator, it's a beautiful sight (it's a milky white band across the sky).
41532
the sun is a star because it is. There are other stars in the universe that have planets revolving around them. All the stars you see in the sky are like the Sun once you get close enough. From those stars, our Sun just looks like another star in the sky.