Re: Programming a calendar system

MJR> So the planet of the Aregans must be 0.6064^2^(1/3) = 0.5325
MJR> AU from their Sun.

JW> [nitpick alert]
JW> R=T^(2/3)
JW> this calculates to about 0.7167 AU by my calculator. Did I do something
JW> wrong here?
JW> [/nitpick]

No, I did.  I entered it as T^2^(1/3) which associates the wrong way -
it's T^(2^(1/3)) instead of (T^2)^(1/3).  Should have just done
T^(2/3) like you did. :)  Your figure is correct, and it's still
in the habitability zone for K-type stars.  Very close to the K/G
line, though, so the star would be more orange than red.

> Cool. Do you have a good source for this type of data?
Google for +"main sequence" +stars.  Lots of data online.  Couldn't
find a formula or table for the habitability zones, though, just
a chart.

> I figure that the star of the culture is say 1.6 solar masses.
That's either G0 or a high-numbered F, so a yellow-white star.