Path: utzoo!utdoe!generic!pnet91!taob
From: taob@pnet91.cts.com (Brian Tao)
Newsgroups: comp.sys.apple2
Subject: Accrete
Message-ID: <238@generic.UUCP>
Date: 30 Nov 90 16:15:08 GMT
Sender: root@generic.UUCP
Organization: People-Net [pnet91], Etobicoke, ON
Lines: 39

[moved from comp.binaries.apple2]

From ART100@psuvm.psu.edu (Andy Tefft):

> This is not a binary but I thought it might be useful for people
> to see what this program does before downloading it. It is
> *very slow* - took about 3 hours on my //c - and it doesn't
> print anything except for the occasional "SMASH!" on the screen
> (There were 8 of these in the 2 hours I paid attention). The program
> ends by writing an output file like the following:
> 
> seeds: 0 0 -8286 -27406
>                         SYSTEM  CHARACTERISTICS
> Mass of central star (in solar masses): 1.21
> Luminosity of central star (relative to the sun):  2.51
> Total main sequence lifetime (in million yrs):   4824.979
> Current age of stellar system (in million yrs):   2530.437
> Radius of habitable ecosphere (AU): 1.585

    I also downloaded this simulation, and it is certainly interesting to read
through the reams of data it pours out.  Have you been able to find seeds
which will create a system with an Earth-type planet (a "class M" planet)? 
I've done 5 runs so far and most of my planets are barren ice worlds or
cloud-covered balls of hot rock.  If you find any interesting seeds, please
post them here!  This type of simulation is GREAT for space RPG's like
Traveller where you need a realistic star system for your campaign.  I just
need some guidelines for choosing the seeds to produce habitable planets.

    I'm surprised it takes so long on a //c  I'm running it on my GS, and it
takes about 30 minutes on average per simulation.  This is at the standard 2.8
MHz clock speed.  From that figure, a 1-MHz machine should finish it in about
90 minutes or so.

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