Celestia Forums

The stellar companion for BL Ceti (Luyten 726-8), UV Ceti, has a radius of 100000 km. This should be more like 20000 km... wondering if I'm missing something.

Will wrote:The stellar companion for BL Ceti (Luyten 726-8), UV Ceti, has a radius of 100000 km. This should be more like 20000 km... wondering if I'm missing something.

That's a tiny radius ... where did you get it from?
My figure is ~14% of the radius of the Sun, about right for UV Ceti's stellar class. See, for instance, http://www.solstation.com/stars/luy726-8.htm for confirmation.

Grant

Apparently I got it from my ass. Yeesh. My bad.

My problem was seeing '.03 Rsun' from Celestia, and translating '14%' as '.014.'

I teach Math SAT prep, can you believe it?

Nevermind.

Oh, any suggestions on how to make a stellar companion have a proper spectral shine?

Will wrote:My problem was seeing '.03 Rsun' from Celestia ...

Radii for cool stars are underestimated in Celestia, but not by that much since we introduced a bolometric correction. Are you using 1.3.0?

Will wrote:Oh, any suggestions on how to make a stellar companion have a proper spectral shine?

Nag Chris! .

Grant

This is Will in proper form...

I'm using 1.3.0... Mac, you see. Glad to hear it is more correct in 1.3.1 (I presume). I guess I'll just have to pine for it.