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Latest Proxima Centauri Stories

Incoming Coronal Mass Ejection Coming On June 16
2012-06-15 13:39:44

[ Watch the Video ] Lee Rannals for redOrbit.com The sun is a ferocious, hot mess, and this week it showed off through a coronal mass ejection just how messy it can get. An active region on the sun fired off two M-class flares and two coronal mass ejections (CMEs) this week. NASA said the first flare lasted for three hours, and peaked on June 13 at 9:17 a.m. EDT.  The CME associated with the flare traveled up at approximately 375 miles per second. The second flare peaked...

Wise Finds Fewer Brown Dwarfs Than Expected
2012-06-10 04:49:55

Astronomers are getting to know the neighbors better. Our sun resides within a spiral arm of our Milky Way galaxy about two-thirds of the way out from the center. It lives in a fairly calm, suburb-like area with an average number of stellar residents. Recently, NASA's Wide-field Infrared Survey Explorer, or WISE, has been turning up a new crowd of stars close to home: the coldest of the brown dwarf family of "failed" stars. Now, just as scientists are "meeting and greeting" the new...

ROSAT Fell To Earth Late Saturday Night
2011-10-23 05:37:41

The German-built Röntgensatellit (ROSAT) fell back to Earth Saturday evening, officials from the National Aeronautics and Space Administration (NASA) told ABC News. In a statement posted to their official website, the German Aerospace Center (DLR) said, "On Sunday, 23 October 2011, between 1:45 UTC (3:45 CEST) and 2:15 UTC (4:15 CEST) the German Roentgen Satellite ROSAT has re-entered Earth's atmosphere. There is currently no confirmation if pieces of debris have reached...

2011-08-23 15:19:00

WASHINGTON, Aug. 23, 2011 /PRNewswire-USNewswire/ -- Scientists using data from NASA's Wide-field Infrared Survey Explorer (WISE) have discovered the coldest class of star-like bodies, with temperatures as cool as the human body. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO ) Astronomers hunted these dark orbs, termed Y dwarfs, for more than a decade without success. When viewed with a visible-light telescope, they are nearly impossible to see. WISE's infrared vision...

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2011-08-23 20:19:17

  Scientists using data from NASA's Wide-field Infrared Survey Explorer (WISE) have discovered the coldest class of star-like bodies, with temperatures as cool as the human body. Astronomers hunted these dark orbs, termed Y dwarfs, for more than a decade without success. When viewed with a visible-light telescope, they are nearly impossible to see. WISE's infrared vision allowed the telescope to finally spot the faint glow of six Y dwarfs relatively close to our sun, within a...

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2010-04-06 09:15:00

As our telescopes grow more powerful, astronomers are uncovering objects that defy conventional wisdom. The latest example is the discovery of a planet-like object circling a brown dwarf. It's the right size for a planet, estimated to be 5-10 times the mass of Jupiter. But the object formed in less than 1 million years "” the approximate age of the brown dwarf "” and much faster than the predicted time it takes to build planets according to some theories. Kamen Todorov of Penn...

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2009-04-24 08:15:00

Twenty-four unusual stars, 18 of them newly discovered, have been observed in new Hubble telescope images. The stars are white dwarfs, a common type of dead star, but they are odd because they are made of helium rather than the usual carbon and oxygen. This is the first extensive sequence of helium-core white dwarfs to be observed in a globular cluster, a dense swarm of some of the oldest stars in our galaxy. A study, accepted for publication in the Astrophysical Journal, suggests that these...

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2008-12-10 09:15:00

Twentieth Century Fox makes history by transmitting the first motion picture in to deep space, making THE DAY THE EARTH STOOD STILL the world's first galactic motion picture release. The first deliberate deep space transmission of this highly anticipated science fiction thriller will begin this Friday, December 12, 2008, to coincide with the film's opening day on Planet Earth. If any civilizations are currently orbiting Alpha Centauri, they will be able to receive and view the film...

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2008-03-11 10:25:00

A rocky planet similar to Earth may be orbiting one of our nearest stellar neighbors and could be detected using existing techniques, according to a new study led by astronomers at the University of California, Santa Cruz. The closest stars to our Sun are in the three-star system called Alpha Centauri, a popular destination for interstellar travel in works of science fiction. UCSC graduate student Javiera Guedes used computer simulations of planet formation to show that terrestrial planets...

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2005-07-28 09:37:25

NASA -- NASA's Chandra X-ray Observatory survey of nearby sun-like stars suggests there is nearly three times more neon in the sun and local universe than previously believed. If true, this would solve a critical problem with understanding how the sun works. "We use the sun to test how well we understand stars and, to some extent, the rest of the universe," said Jeremy Drake of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. "But in order to understand the sun, we need to...


Latest Proxima Centauri Reference Libraries

10_229495c009fca33ec67cb53f830d8a202
2004-10-19 04:45:44

Centaurus Constellation -- Centaurus (the centaur) was one of the 48 constellations listed by Ptolemy, and counts also among the 88 modern constellations. A constellation of the southern hemisphere, mentioned by Eudoxus (4th century B.C.) and Aratus (3rd century B.C.), Ptolemy catalogued thirty-seven stars in it. It contains Proxima Centauri, the red dwarf that is the nearest known star (other than the Sun) to Earth, as well as Alpha Centauri, which is a double star to which Proxima...

6_9182d2d493640e91b36f6c6769af79e62
2004-10-19 04:45:42

Red Dwarf -- A red dwarf is a small star on the main sequence, either late K or M spectral type. They have a diameter and mass of less than one-third that of the Sun (down to 0.08 solar masses, which are Brown dwarves) and a surface temperature of less than 3,500 K. They emit little light, sometimes as little as 1/10,000th that of the sun. Due to the slow rate at which they burn hydrogen red dwarves have a enormous lifespan, estimates range from a tens of billions up to trillions of...

3_430c9969154cd2928ecbcfb45cf0d8dd2
2004-10-19 04:45:40

Proxima Centauri -- The red dwarf star Proxima Centauri (also Alpha Centauri C), part of the Alpha Centauri star system, is the nearest star to our Earth other than the Sun. Proxima Centauri is roughly 4.22 light years from Earth, 270,000 times as far as the sun. Its apparent magnitude is 11 (very weak, as red dwarfs in general are: far too weak to be observable with the naked eye). Proxima Centauri has often been suggested as a logical first destination for interstellar travel....

3_aaa6f0d4aeab03d9ae4d6b2e552621d02
2004-10-19 04:45:40

Brown Dwarf -- Brown dwarfs are a special type of low-mass star (approximately 13-70 Jupiter masses) that do not have nuclear fusion occurring in their cores during their time on the main sequence. Early in their development most brown dwarf stars do have lithium fusion in their cores, and a lack of lithium is a test for low-mass objects that are suspected of being brown dwarfs. Many brown dwarfs continue to glow in the red and infrared after their lithium is exhausted. This glow is...

3_9b544732a3ec053113238c19e714a11b2
2004-10-19 04:45:40

Alpha Centauri -- Alpha Centauri is the brightest star system in the southern constellation of Centaurus, and is the third brightest in the entire night sky (although too far south to be visible in most of the northern hemisphere). It is also the closest star system to Earth. It bears the proper name Rigil Kentaurus (often shortened to Rigil Kent), meaning "foot of the centaur" in Arabic, but is nonetheless usually referred to by its Bayer designation Alpha Centauri. Alpha Centauri is...

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