[TML] Noncanonical TU 3D.

[Garry Ward]

----- Original Message ----- 
From: "Thad Coons" <tocoons at gmail.com>
To: "The Traveller Mailing List" <tml at travellercentral.com>
Sent: Wednesday, January 02, 2008 7:47 PM
Subject: Re: [TML] Noncanonical TU 3D.


> On 1/1/08, Greg <greg at nokes.name> wrote:
>>
>>
>> Have you played with StarGen [1] by Jim Burrows? It's based on the old
>> Accrete system as I recall, plays well with *nix, Mac and Winders, and
>> generates a nice HTML output detailing out the stellar systems.
>>
>> [1] http://home.comcast.net/~brons/NerdCorner/StarGen/StarGen.html
>
>
> My version of Windows choked on some non-standard part of it.  I tried out
> the
> web version. The difficulty is that it takes only one input parameter, 
> star
> mass, and generates everything else from that. I don't have an easy way to
> correlate that to the spectral type.
> I am looking at Gillett's
> World-Building<http://www.amazon.com/World-Building-Science-Fiction-Writing-Stephen/dp/0898797071>book
> which appears to be fairly close to what I'm looking for. One of the
> reviewers mentioned that he had put the equations in a spreadsheet and 
> liked
> playing with the results. That sounds like what I'd like to do.
I have also made use of that book, supplementing materials in Traveller, 
both in a Lotus spread sheet and in a C#.NET program.

I've set it up so that given the spectral class (say G2) and magnitude (say 
4.85), I can get Luminosity, size, mass, various gravity boundaries and 
assorted orbital data (orbital period, base surface temp) for planets in the 
standard Traveller orbits.

Works rather nicely.

Garry
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