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Latest Binary star Stories

4d32b1514048f2b3a98ae9daa996d5bd1
2010-05-11 09:50:00

A heavy runaway star is rushing away from a nearby stellar nursery at more than 250,000 miles an hour, a speed that will get you to the Moon and back in two hours. The runaway is the most extreme case of a very massive star that has been kicked out of its home by a group of even heftier siblings. The homeless star is on the outskirts of the 30 Doradus nebula, a raucous stellar breeding ground in the nearby Large Magellanic Cloud. The finding bolsters evidence that the most massive stars in...

24e4e97f844b64fdf4bbabf2a1a2ba7e1
2010-04-07 13:35:00

For the first time, astronomers have directly observed the mysterious dark companion in a binary star system that has puzzled skywatchers since the 19th century. Using an instrument developed at the University of Michigan, scientists have taken close-up pictures of Epsilon Aurigae during its eclipse, which happens every 27 years. "Close up" in this case is a relative term, but the images zoom in enough to show the shape of the dark object's shadow. "Seeing is believing," said John Monnier, an...

799ee8020ea57cd4e6e45d2a5ec4c620
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...

78339a15cab78b1bed081b4be049bd9b1
2010-01-14 10:50:05

Astronomers have found a giant magnetic loop stretched outward from one of the stars making up the famous double-star system Algol. The scientists used an international collection of radio telescopes to discover the feature, which may help explain details of previous observations of the stellar system. "This is the first time we've seen a feature like this in the magnetic field of any star other than the Sun," said William Peterson, of the University of Iowa. The pair, 93 light-years from...

8c1f7f7a3d0233e5ffb10a502a69b4c01
2010-01-05 08:45:00

For almost two centuries, humans have looked up at a bright star called Epsilon Aurigae and watched with their own eyes as it seemed to disappear into the night sky, slowly fading before coming back to life again. Today, as another dimming of the system is underway, mysteries about the star persist. Though astronomers know that Epsilon Aurigae is eclipsed by a dark companion object every 27 years, the nature of both the star and object has remained unclear. Now, new observations from NASA's...

4fbebe452a31bf3fe0aafb624c3ecb551
2009-12-23 14:15:55

For almost 50 years, astronomers have puzzled over the youthful appearance of stars known as blue stragglers. Blue stragglers are the timeworn Hollywood starlets of the cosmos: They shine brightly, they are older than they appear, and they have, disconcertingly, gained mass at a late stage of life. "These blue, luminous stars should have used up their hydrogen fuel and flamed out long ago," explains Robert Mathieu, a University of Wisconsin-Madison astronomer. "Yet they are still here. By...

a032652b36ab66241b73a3978837b4211
2009-12-16 09:05:45

A team of Chinese astronomers have discovered a giant planet close to the exotic binary star system QS Virginis. Although dormant now, in the future the two stars will one day erupt in a violent nova outburst. Professor Shengbang Qian of Yunnan Observatory leads the team of scientists who report their work in the journal Monthly Notices of the Royal Astronomical Society. QS Virginis lies in the direction of the constellation of Virgo and is about 157 light years from the Sun. The system is...

1d07820be8d73dac04db040efc6f347e
2009-12-10 10:25:00

Project 1640 sees the unknown using a novel technique known to Galileo Next time you spy the Big Dipper, keep in mind that there is another star, invisible to the unaided eye, contributing to this constellation. According to a new paper published in The Astrophysical Journal, one of the stars that makes the bend in the ladle's handle, Alcor, has a smaller red dwarf companion. Newly discovered Alcor B orbits its larger sibling and was caught in the act with an innovative technique called...

2009-11-05 09:45:27

Cataclysmic variable stars This week, Astronomy & Astrophysics publishes a somewhat unusual research article because it is co-authored by German high-school students. Led by astronomer Klaus Beuermann (University of Göttingen, Germany), the team [1] involves a secondary school physics teacher, three students from two high schools in Göttingen [2], and three professional astronomers. The team made use of a remotely-controlled 1.2-meter telescope in Texas [3], funded by the...

2009-08-04 11:58:00

Small company wins big with the PEO EIS PMSS2 contract award ARLINGTON, Va., Aug. 4 /PRNewswire/ --The Army's Program Executive Office for Enterprise Information Systems (PEO EIS) awarded Binary Group the Program Management Support Services 2 (PMSS2) contract vehicle. Binary is among five contract awardees and is one of only two small business reserve awardees. The contract vehicle provides a venue to compete for task orders among the winning teams. The ceiling value for the PMSS2...


Latest Binary star Reference Libraries

10_92430632dfc26ec0245770cbd79d1d092
2004-10-19 04:45:44

Lyra Constellation -- Lyra (the lyre) is a prominent, although fairly small, northern constellation. It was one of Ptolemy's 48 constellations, and also counts among the modern 88 constellations. Its brightest star is Vega (Alpha Lyrae), which together with Altair (Alpha Aquilae) and Deneb (Alpha Cygni) forms the large asterism known as the Summer Triangle. Beta Lyr is a half separated (i.e. one of the stars reached its Rochevolume) eclipsing binary of a cream-white colour. The...

6_1446abbc556d86191d7944d6c5cf68052
2004-10-19 04:45:43

X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...

6_48ed76f36ff2f4ed0ad83a22964029652
2004-10-19 04:45:43

X-ray Binaries -- X-ray binaries are a class of binary stars that are very luminous in X-rays. The X-rays are produced by matter falling from one component (usually a relatively normal star) to the other component, which is a neutron star or a black hole. The infalling matter releases gravitational potential energy, up to several tens of per cent of its rest mass as X-rays. (Hydrogen fusion releases about 0.7 per cent of rest mass) X-ray binaries are further subdivided into...

6_f1577ee462b741c03ef6a7d23d2cd6905
2004-10-19 04:45:43

Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: -- Mira...

6_56f5b656bab076f112064c1e8bd2f30c2
2004-10-19 04:45:42

Triple Star -- A triple star system consists of three gravitationally bound stars. The stars are in orbits around a common center of mass, usually so that two of the stars form a close binary star and the third is further away. This configuration is often called a hierarchical triple star. Multiple stars containing more than three stars can usually be decomposed to binaries and single stars that are in a hierachically bound system. ----- Click here to learn more on this...

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Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
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