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Latest Star Stories

massive Star forming cluster discovered
2013-12-16 15:57:27

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the Smithsonian's Submillimeter Array (SMA) have discovered a giant star-forming region. Known as W49A, the region is located 36,000 light-years away from Earth on the opposite side of the Milky Way. Astronomers say the star-forming region shines 100 times brighter than the Orion nebula. In order to view W49A, astronomers had to aim SMA through dusty fog, after which the telescope helped reveal an active site of star...

Where Brown Dwarfs End And Stars Begin
2013-12-15 04:37:49

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online Stars form as interstellar gas accumulates, increasing in density and temperature. Eventually, the environment at the core of the object reaches a state where hydrogen begins fusing at a high enough rate that the outward radiation pressure and the inward gravitational force reach a balance, and a star is born. However, if the forming proto-star is not quite massive enough, the fusion process is not able to produce enough...

Crab Nebula Surprises Astronomers With Noble Gas Molecules
2013-12-13 04:31:42

[ Watch the Video: Supernova Remnant Shows Signs Of Noble Gas ] redOrbit Staff & Wire Reports - Your Universe Online Astronomers from the UK have discovered argon hydride within the Crab Nebula, marking the first time that noble gas molecules have been detected in space, according to research appearing in Friday’s edition of the journal Science. As part of their study, Mike Barlow of the University College London Department of Physics and Astronomy and his colleagues used the...

Mysterious Radio Bursts May Originate From Nearby Flaring Stars
2013-12-13 04:17:34

redOrbit Staff & Wire Reports - Your Universe Online Extremely quick, extremely bright radio pulses known as “fast radio bursts” may originate from flaring stars located within our own galaxy, researchers from the Harvard-Smithsonian Center for Astrophysics (CfA) claim in a new study. Based on their characteristics, scientists had believed that these radio bursts came from galaxies located billions of light-years away. However, the pulses – which typically only last for...

2013-12-04 23:26:37

To inspire the lifelong reading habit, students and teachers can now use the Lexile® book database from MetaMetrics® to create custom book lists in Total Reader™. The book database offers selections within the Lexile range that best supports reading growth for the individual student. San Diego, CA (PRWEB) December 04, 2013 To inspire the lifelong reading habit, students and teachers can now use the Lexile® book database from MetaMetrics® to create custom book lists...

Neutron Star Mystery Heats Up
2013-12-02 04:34:10

redOrbit Staff & Wire Reports - Your Universe Online New research appearing in the latest edition of the journal Nature is casting doubts on currently accepted theories has to how the surface of a neutron star heats itself up. Neutron stars are super-dense stars that form once a large star explodes, causing the core to collapse upon itself. Scientists had long believed that nuclear reactions within the crust contributed to the heating of the star’s surface, but Michigan State...

2013-11-30 23:04:55

bestwebdesignagencies.com discloses rankings of best infographic design agencies for November 2013. (PRWEB) November 30, 2013 The independent authority on web design and development, bestwebdesignagencies.com, has promoted the list of the November 2013 best infographic design services in the web design industry. The ratings are promoted at the start of each month in order to account for the latest developments and achievements of the best performing infographic design services. The...

Ancient Brown Dwarfs
2013-11-21 15:05:41

John P. Millis, PhD for redOrbit.com - Your Universe Online The galaxy is a diverse place, containing stars, planets, nebulous gas, black holes, and all matter of other objects, some of which we still do not understand. But among this vast array sits an object that is neither a star, nor a planet. These brown dwarfs have masses only a fraction of that of our Sun, but are still at least 13 times more massive than Jupiter. But because of the lack of substantial fusion, the surface of...

2013-11-20 20:24:21

Updated program enhanced with Common Core Reports BREWSTER, N.Y., Nov. 20, 2013 /PRNewswire/ -- Questar Assessment, Inc., (Questar), a leading educational assessment provider for states, school districts, and higher education institutions, announced today that the Degrees of Reading Power® (DRP) assessment is now available in an online platform. New test forms and new diagnostic reports reflecting essential Common Core requirements are featured. (Logo:...

2013-11-20 12:23:16

NEW YORK, November 20, 2013 /PRNewswire/ -- PA Consulting Group today announced the appointment of Marcus Agius as Non-Executive Chairman as of January 1 2014. The appointment comes after the earlier announcement that Jon Moynihan, currently Executive Chairman of PA, would be retiring at the end of the year. Simultaneously, the Board had commenced a series of changes to refresh its membership, other long-serving members having expressed their wish to retire along with...


Latest Star Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

7_9d2e259c13e5a649c6295922288878812
2004-10-19 04:45:43

UV Astronomy -- UV astronomy is the branch of astronomy and astrophysics which deals with objects visible in ultraviolet (UV) radiation. UV radiation ranges approximatively from 10nm (extreme UV) to 380nm (near UV). Ultraviolet line spectrum measurements are used to discern the chemical composition, densities, and temperatures of interstellar medium, and the temperature and composition of hot young stars. UV observations can also provide essential information about the evolution of...

7_4b235c0bfbfc8504a41844f9c48ad8962
2004-10-19 04:45:43

Hertzsprung-Russell Diagram -- In stellar astronomy, the Hertzsprung-Russell diagram (H-R diagram) shows the relation between the absolute magnitude and the spectral types of stars. It was invented around 1910 by Ejnar Hertzsprung and Henry Norris Russell. There are two equivalent forms. One is the observer's form which plots the color of the star on one axis and the absolute magnitude on the other axis. The theoretician's form plots the temperature of the star on one axis and 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_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...

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