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Author Topic: How Big Is The Biggest Star ?..How Big Can A Star Get ?  (Read 11882 times)

Offline neilep

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Dear Starologists,

Stars are like....well big !!

Even bigger than a mountain or an elephant !...and they are also well big !
Stars are my all time favourite nuclear exploding things of gassy luminescent balls ever !

Look...here's our Sun in comparison to our Earth and Moon !



Check that out !...I took that photo !!...had to hold my breath a well long time !!


So, seeing as we are dwarfed by the giant star that is our Sun.........are there stars out there that put the sun it's place like it has with us ?....What's the biggest known Star ?...How big is it ?...How big can a big star get ?


Strike-a-light and twinkle the star in my belly with a gassy ball orientated answer !



Thank Ewe


Neil
Star Size Questioner


mwah mwah mwah mwah
xxxxxxxxxxxxxxxxxxx





 

lyner

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #1 on: 14/06/2008 21:01:43 »
Neil. YOU are a star!
 

Offline neilep

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #2 on: 14/06/2008 21:15:20 »
Neil. YOU are a star!

*le shucks*......

Modesty prevails that this sheepy is dwarfed by the contribution ewe people (who know stuff) make to this site.....where would we be without your incredible gifts of knowledge ?

Thank YOU Sophiecentaur !
 

Offline Madidus_Scientia

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #3 on: 15/06/2008 14:27:16 »
The largest one we know about is called Canis Majoris, about 5000 light years from earth. Its radius is estimated to be up to 2100 times larger than that of our sun! So if that star were in place of the sun its surface would extend out to about Saturn. Quite large.

Found an interesting page about the subject here: http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/

And to quote from that page about the largest possible star:

Quote
But according to theorists, how big can stars get?

I contacted Roberta Humphreys from the University of Minnesota, the researcher who calculated the size of VY Canis Majoris, and posed this question to her. She noted that the largest stars are the coolest. So even though Eta Carinae is the most luminous star we know of, it's extremely hot - 25,000 Kelvin - and so only a mere 400 solar radii.

The largest stars will be the cool supergiants. For example, VY Canis Majoris is only 3,500 Kelvin. A really big star would be even cooler. At 3,000 Kelvin, a cool supergiant would be 2,600 times the size of the Sun.

That, she believes, is the largest possible star.
 

Offline neilep

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #4 on: 15/06/2008 18:35:22 »
The largest one we know about is called Canis Majoris, about 5000 light years from earth. Its radius is estimated to be up to 2100 times larger than that of our sun! So if that star were in place of the sun its surface would extend out to about Saturn. Quite large.

Found an interesting page about the subject here: http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/

And to quote from that page about the largest possible star:

Quote
But according to theorists, how big can stars get?

I contacted Roberta Humphreys from the University of Minnesota, the researcher who calculated the size of VY Canis Majoris, and posed this question to her. She noted that the largest stars are the coolest. So even though Eta Carinae is the most luminous star we know of, it's extremely hot - 25,000 Kelvin - and so only a mere 400 solar radii.

The largest stars will be the cool supergiants. For example, VY Canis Majoris is only 3,500 Kelvin. A really big star would be even cooler. At 3,000 Kelvin, a cool supergiant would be 2,600 times the size of the Sun.

That, she believes, is the largest possible star.


Holy Guacamole !!

Thank ewe Madidus_Scientia

That is a fantastic link and ...did ewe play that Youtube vid ?....wooo !!!.....

Brilliant !!

 

sooyeah

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #5 on: 15/06/2008 19:09:53 »

Holy Guacamole !!

Thank ewe Madidus_Scientia

That is a fantastic link and ...did ewe play that Youtube vid ?....wooo !!!.....

Brilliant !!



At the end of the video there are 7 more watch 'the biggest star known to man',

VY Canis Majoris

even has funnky sound track. OH my that is massive, it's like 3 times the size of VV Cephei, I had no idea.
« Last Edit: 15/06/2008 19:12:59 by JOLLY »
 

Offline neilep

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #6 on: 15/06/2008 23:58:40 »

Holy Guacamole !!

Thank ewe Madidus_Scientia

That is a fantastic link and ...did ewe play that Youtube vid ?....wooo !!!.....

Brilliant !!



At the end of the video there are 7 more watch 'the biggest star known to man',

VY Canis Majoris

even has funnky sound track. OH my that is massive, it's like 3 times the size of VV Cephei, I had no idea.

WOW !!

Now they are BIG !!

Thanks Jolly !

 

Offline Karen W.

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #7 on: 16/06/2008 00:18:15 »
Those are really incredible... makes me feel like less then a grain of sand!

DOUBLE WOW!!!!

 Neily, Jolly, and Madius, those are incredible...!
 

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How Big Is The Biggest Star ?..How Big Can A Star Get ?
« Reply #7 on: 16/06/2008 00:18:15 »

 

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