Supplements
                Unsigned Heaven     Travel World     The Cheers News     Forum    



Milky Way's 'brightest star title' maybe in jeopardy

thecheers.org    2008-07-16 02:53:43    

Washington, July 16 : A new star discovered in the center of the Milky Way is a serious contender for the title of the brightest star in our galaxy.
A new star discovered in the center of the Milky Way is a serious contender for the title of the brightest star in our galaxy.

Nicknamed the "Peony nebula star," the bright stellar bulb was revealed by NASA's Spitzer Space Telescope and other ground-based telescopes. It blazes with the light of an estimated 3.2 million suns.

The reigning "brightest star" champion is Eta Carina, with a whopping solar wattage of 4.7 million suns.

But according to astronomers, it's hard to pin down an exact brightness, or luminosity, for these scorching stars, so they could potentially shine with a similar amount of light.

"The Peony nebula star is a fascinating creature. It appears to be the second-brightest star that we now know of in the galaxy, and it's located deep into the galaxy's center," said Lidia Oskinova of Potsdam University in Germany.

"There are probably other stars just as bright if not brighter in our galaxy that remain hidden from view," she added.

Scientists already knew about the Peony nebula star, but because of its sheltered location in the dusty central hub of our galaxy, its extreme luminosity was not revealed until now.

Astronomers estimated that the Peony nebula star kicked off its life with a hefty mass of roughly 150 to 200 times that of our sun.

Stars this massive are rare and puzzle astronomers because they push the limits required for stars to form.

Not only is the Peony nebula star hefty, it also has a wide girth.

It is a type of giant blue star called a Wolf-Rayet star, with a diameter roughly 100 times that of our sun. That means this star, if placed where our sun is, would extend out to about the orbit of Mercury.

With so much mass, the star barely keeps itself together. It sheds an enormous amount of stellar matter in the form of strong winds over its relatively short lifetime of a few million years.

This matter is pushed so hard by strong radiation from the star that the winds speed up to about 1.6 million kilometers per hour in only a few hours.

Ultimately, the Peony nebula star will blow up in a fantastic explosion of cosmic proportions called a supernova.

In fact, Oskinova and her colleagues say that the star is ripe for exploding soon, which in astronomical terms mean anytime from now to millions of years from now.

"When this star blows up, it will evaporate any planets orbiting stars in the vicinity," said Oskinova. "Farther out from the star, the explosion could actually trigger the birth of new stars," he added. (ANI)
© 2007 ANI

Click for more News about Milky Way

TAGS: Science   

The Cheers NEWS is looking for new local reporters


more
Why the veggie burger tastes just as good as a non-veg one

While a scrumptious non-veggie burger may be treat for your taste buds, the taste for meat could be based in part on expectation rather than reality, says a new study led by an Indian researcher, which shows that personal values deceive taste buds.

Scientists to drill into a crack in the edge of the world

An international consortium of scientists is preparing to drill into a crack in the edge of the world - the South Island's Alpine Fault in New Zealand.

US warrant surrendering Dr. Death to Oz Police imminent
18.Jul 2008
Ending a three-year quest to bring controversial In...read

Icebergs scouring ocean seabed could have severe effects on marine creatures
18.Jul 2008
New data has suggested that due to an increase in ...read

Humming fish gives clues to the origins of vocalization
18.Jul 2008
A male midshipman - a close relative of the toadfi...read



"Assisted migration of species" necessary for saving wildlife from global warming

Antarctica and North America may once have been connected

Indian-origin researchers find way to create heat pumps, energy converters from 'nanosculpture'

NASA's Deep Impact films Earth as an alien world

Men and women really do have different brains





The Cheers magazine: About us | Contact us | The Cheers Story | Advertising
Work with The Cheers: Writers guide | Write for us | Writer application | Reporter application 
The Cheers:Terms and conditions | Privacy policy | Sponsoring | Sitemap
Sister sites: Tech Blog |  Best Auto Zine | Travel destinations by weather | Okai - critical commentary | Stock trading game | Wifi hotspots and wireless laptops | The Daily Bonk | Best Poker Zine | Business thoughts | Political commentary | Most expensive things | World News in ShortTop 10 listsPolitically incorrect blog
Listen: Online radio station
Travel World: World travel locations
Travel: Travel blogs | Travel destinations | Hotel reviews | Beer around the world
Watch: Watch series online
Trade: The Stock game | Trading competitions | Trading education
Entertainment Blogs
Entertainment blog
Copyright © 2004-2012 The Cheers magazine / Milky Way





web stats