Catalogue of star ages

[Cormoran]

Hello all,

I was wondering if anyone is aware of a catalogue of stellar ages (I would assume estimated from metallicity)?

All part of my continuing obsession with mapping the heavens in 3D

Thanks,

Cormie

[ajtribick]

This isn't entirely what you want, but it's a fairly extensive list of age estimates for stars known to have extrasolar planets.

On the Ages of Exoplanet Host Stars

[Malenfant]

If you wade through the list at http://www.solstation.com/stars.htm you can find age estimates for some of the stars described there...

Beyond that there's not all that much out there unless you're looking for ages of globular clusters, it's not easy to figure out the ages of stars it seems...

[Dollan]

Here's a page that focuses on some older stars: http://ancientsuns.com/planets/humanity ... trich.html

...John...

[Ynjevi]

You might like to check the The Geneva-Copenhagen survey of the Solar neighbourhood catalog, which contains lots of data (including ages) on Sunlike stars in the solar neighborhood.

[Magua]

Hello, this is very interesting theme. Does somebody know, is there any calculations of star diameters and luminosity in their geological pasts, espescially for our Sun? I have read that Sun's diameter decreases about 1.5m per hour (but it was untrusted source).

Sorry, I don't speak english good

[Cormoran]

Gentlemen,

Thank you for your assistance. I will examine these sources over the weekend.

In my current activities, I am discovering quite how much we DON'T know about stars (and the good reasons behind that lack of knowledge). Also, I am finding how approximate some of the mathematical approximations of stellar behaviour are. Try working out the radius of Deneb using its temperature and luminosity. The formulae I have found to translate Absolute magnitude to luminosity as the first part of the above process seem to result in figures that send the results of the next step or two into impossibility....

Those are questions for other days, I think. I had enough trouble loading Tycho-3 into my catalogue database, and then discovering the parallaxes to be almost useless? Not fun

See ya later, folks

Cormie

[Cormoran]

Gentlemen, and in particular Ynjevi,

I have now examined the Geneva-Copenhagen data, and found it to be just what I was looking for, so many thanks indeed.

I'll be taking that data and cross-referencing it with the other sources cited for comparison and completeness.

Thank you again,

Cormie