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SKY-MAP.ORG / WIKISKY • View topic - * Most Massive Star Discovered
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* Most Massive Star Discovered

PostPosted: Fri Jun 08, 2007 10:06 pm
by Tuguldur
The most massive star known in the universe has been discovered and "weighed," astronomers announced today.

The star, part of a binary system, topped the scales at 114 times the mass of the sun.

Though astronomers suspected that stars with masses up to 150 times the mass of the sun must exist, this discovery marks the first time a star has broken the 100-solar-mass barrier. The previous record holder was only a measly 83 solar masses.

The newly weighed star, known simply as A1, is the brightest hot star at the heart of a giant, but dense, young star cluster called NGC 3603, which lies 20,000 light-years from Earth. The star's companion has a mass 84 times that of the sun.

Image

These massive stars were "weighed" by inspecting their orbits with the Very Large Telescope and combining that data with eclipses observed by the Hubble Space Telescope.

Stars have a mass limit of 150 solar masses because above that, the pressure pushing outward from the star overwhelms the inward pull of gravity and causes the star to become unstable.

In the early universe, however, stars with masses up to several hundred times that of the sun are believed to have existed because the pressure in the stars was not as high because the heavier elements had not yet been "cooked" by the nuclear fusion taking place in the cores of stars.

The discovery was announced at the annual meeting of the Canadian Astronomical Society.

PostPosted: Sun Jun 10, 2007 11:06 am
by Parsec
Yes, very interesting.

Man! I thought Eta Carina was massive (relitavely I guess it still is).
But A1 is still has a factor of 150 solar masses to 100 solar masses for EC.

Time and space will be in for a weird ride on the back side of the Swartzchild radius when this thing collapses in the far future.

If the RASC (am a member) does any article's on this I will pass them/it to you.
:D

PostPosted: Sun Jun 10, 2007 11:18 am
by Tuguldur
many thanks Ron!

about Eta Carinae; I am one of those people, who believe Eta Carinae will be the next SuperNovae which is gonna occur in our Milkyway!

BTW, last one was Kepler SuperNova observe in 17th century. :)

clear skies,
Tuugii

PostPosted: Sun Jun 10, 2007 6:57 pm
by Parsec
I am one of those people, who believe Eta Carinae will be the next SuperNovae which is gonna occur in our Milkyway!


Yes, I suppose there is a very good chance this could be.

What a show that would put on.

I don't think the initial blast of gamma radiation would do much harm here on the earth surface. Although orbiting satellites may take a bit of a 'hit'

PostPosted: Mon Jun 11, 2007 12:06 am
by Tuguldur
yeah, it would be very bright object probably will be visible in broad daylight! imagine what thing we're observing chinese in 1054-the crab!

Unfortunately we'll need to travel south....hehe


BTW, Eta Carinae is about 7500ly away, so as you've said only the satellites may get a tiny 'hit'. :)

Tuugii

Re:

PostPosted: Wed Apr 06, 2011 12:46 am
by jimm1909
Tuguldur wrote:yeah, it would be very bright object probably will be visible in broad daylight! imagine what thing we're observing chinese in 1054-the crab!

Unfortunately we'll need to travel south....hehe


BTW, Eta Carinae is about 7500ly away, so as you've said only the satellites may get a tiny 'hit'. :)

Tuugii


Have they found any other bigger stars yet? I've seen bigger on Las Vegas Maps haha.

Thanks in advance,

-Jim

Re: Re:

PostPosted: Mon May 23, 2011 7:46 am
by cristobal
jimm1909 wrote:
Tuguldur wrote:yeah, it would be very bright object probably will be visible in broad daylight! imagine what thing we're observing chinese in 1054-the crab!
Unfortunately we'll need to travel south....hehe
BTW, Eta Carinae is about 7500ly away, so as you've said only the satellites may get a tiny 'hit'. :)
Tuugii

Have they found any other bigger stars yet? I've a seen bigger one on a Vegas Casino Map and Las Vegas Map Downtown shows it all :)

Thanks in advance!
Cristobal

Re: * Most Massive Star Discovered

PostPosted: Fri Jun 10, 2011 2:03 am
by chengliu
Speaking to the media, Samiti general secretary Nithyananda Volakad, who is also a councillor of the Udupi City Muncipal Council said: "By this time, rain should have poured heavily. People of the district especially farmers have been suffering due to want of sufficient as rains. So we organised the frog marriage to please the rain god. We hope it will pour soon." As it was an unusual ceremony in the Coastal Karnataka, some termed it publicity gimmick by the organisers. Many objected the torturing of frogs.
ssion.