Hubble's New Amazing Shot of Proxima Centauri, our Nearest Neighbor
Proxima Centauri lies in the constellation of Centaurus (The Centaur), just over four light-years from Earth. Although it looks bright through the eye of Hubble, as you might expect from the nearest star to the Solar System, Proxima Centauri is not visible to the naked eye. Its average luminosity is very low, and it is quite small compared to other stars, at only about an eighth of the mass of the sun.
However, on occasion, its brightness increases. Proxima is what is known as a flare star,” meaning that convection processes within the star’s body make it prone to random and dramatic changes in brightness.
Credit: ESA/Hubble & NASA – Shining brightly in this Hubble image is our closest stellar neighbor: Proxima Centauri.
The convection processes not only trigger brilliant bursts of starlight but, combined with other factors, mean that Proxima Centauri is in for a very long life. Astronomers predict that this star will remain middle-aged—or a “main sequence” star in astronomical terms—for another four trillion years, some 300 times the age of the current Universe.
Phys.org
Read more here:http://phys.org/news/2013-11-hubble-shot-proxima-centauri-nearest.html
Provided by NASA http://www.nasa.gov/content/goddard/hubbles-new-shot-of-proxima-centauri-our-nearest-neighbor/index.html#.UnVMEXCGrmE
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Whistler Blowers, Insiders
Gee whizz, all the colors of the rainbow in that cross flare.Those optics musta been made in Poland.