maybe a wild thing to say, but have scientists got the age of the Sun wrong?

Question

I have done some thinking (nothing much else to think, as im bored at home), but with people talking about strange solar dimming (i already know that people have said this is due to Global Warming, blocking out od the Sun due to Green House gases blocking the Suns raise, and very inactive Solar Minimums (i also know there predicting a very active solar Maximum), magnetic field weakening (which is an exact paradox to the swapping of the Solar Poles, because when its solar maximum then the poles are swapping polarity)

i know its also a paradox as the Sun becomes more luminous and everything, but maybe the Sun is already a Red Giant (again just thinking, i know its a paradox) but the Sun is a larger size of its type and luminous. 

just a thought, what's yours, i dont care about criticisms, so go for it.

eri · Accepted Answer

We go around the Sun once a year - we have a very good idea of what size it.  A red giant star would have a radius extending almost as far out as the Earth - the Sun would be a whole lot closer.  No, the Sun is not a red giant star.  It won't be one for billions of years.

gRAVEoNE · Answer

The Sun is not a red giant. We measure its size directly, and its spectrum is that of an ordinary G2V star. It is perfectly normal.

Magnetic field reversals are not correlated to solar activity in any way.

Of course, we could have gotten the age of the Sun wrong. But that would mean that pretty much all of the stellar astrophysics (together with most of physics, period) is wrong. Possible? Yes. Likely? Not at all.

TheCreatress · Answer

The Sun is a few times younger than scientists suppose. 
So they got its age quite wrong. 
But they do this with many things. 
This is not an exception at all.

Anonymous · Answer

If there's any correlation with the magnetic polarity of the Earth changing with solar activity cycle where the magnetic polarity of the sun slowly changes every 11 years, scientists apparently have found no correlation. 

http://www.geomag.bgs.ac.uk/reversals.html

creviazuk · Answer

What ARE you on about!!!

Our sun is quite a SMALL star by all accounts, an not to bright either being only an absolute magnitude 4.83 at 'best'. It's neither RED nor GIANT at present - up to magnitude 100.

Harley Drive · Answer

We just don't know just about everything in Astronomy is guesswork, hypothesis or sheer stupidity Don't take anything you hear or read as the truth.

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maybe a wild thing to say, but have scientists got the age of the Sun wrong?

6 Answers