Realistic Systems Details

[Berg]

I'm looking to do some system generation via H&E and was wondering, of the available system generation rules that it offers, which one is the most realistic. Since Mal's isn't programmed (hint ) I'm going with H&E for a sector with UWP's already done.

The options that it has are...
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• CT GS/GC</font>
• MT WBH</font>
• TNE WTH</font>
• GURPS FI</font>

The reason I want something realistic is I'm going to design each system in Celestia, so I don't want anything impossible, but I don't mind stuff that is a little rare

Tom

 

[Malenfant]

First In is the most realistic out of those.

Though whether H&E implements it accurately is another matter. I seem to recall it producing some very odd results that didn't tally with the rules.

 

[Berg]

Here is an example system I generated for Perrior in the Trojan Reaches.
I used FI so maybe you can give me an opinion

Tom

 

[Malenfant]

Well for starters, when it says "magnitude" and has "D" in that box, does that mean it's a white dwarf?

If that is a "G2 D" primary then you won't have hydrographics or atmosphere on the planets.

 

[Berg]

I'm guessing this is from Trojan Reaches "canon" It's using the UWP but, are the star types canon. Could I go through the sector data and instead of changing the UWP, change the star type?
Here is the world data

Tom

 

[Malenfant]

Changing the star type would be more sensible (and easier probably). I mean, look at that last data sheet, you have a base temperature of -240C and there's liquid water?!

If you don't have them already, here's my realistic stellar generation tables.

Change the type from a D to a V and you'll solve most of the problems right there.

 

[kafka47]

There you go again...Mal. Saying just what I want to say and making my life easier with doing all the work of revising the rules. You rock! <pun intended for the planetary scientist>

As I said in another post, Traveller ought to set its standards very high, work making Traveller more realistic goes a long way thanks for doing some of the legwork here.

 

[Gruffty]

That's essentially what I've been doing with Spica - looking at the stars rather than the planets then tweking planet orbits using Mal's system. And my, it's taking a loooonnngggg time....

 

[Berg]

I've been using Mr Mal's tables and pretty much changing D's to V's. Here is a Trinary system...

Corban 2704 Trojan Reaches

B545455-8 PBG:814
F 5 D
M 9 D
M 7 D

I changed the primary star to F5V, then rolled up the system details above with H&E FI rules. I know according to the tables a size "D" is just a D but, the program doesn't like that . Should I change the other stars and do I need to tweak the orbits? Thanks in advance O'wise ones

Tom

 

[Malenfant]

White dwarfs are D, there are white dwarf classifications but they don't go by the OBAFGKM system, so M9 D is meaningless.

If a white dwarf is in the system then that makes life a lot more difficult for worlds orbiting other stars in the system, since they have to endure the WD going through its red giant phases. Might be better to turn the M stars into a binary system orbiting the F V in a far orbit - F V stars are not likely to have M V stars in near orbits, the mass difference is too great.

And in fact, both those M V stars could be Brown Dwarfs, they're so late in number. Maybe the F V captured a binary brown dwarf pair? Though that's somewhat unlikely in itself... it's a bit of an odd system.

 

[Berg]

H&E star data is like this...

BAFGKM - Type

0-9 - Class

IIa,IIb,III,IV,V,VI,D for size

I just found that if it's a "D" then I can leave the rest blank. I'm just wondering how the program shows the star locations? Above it just shows "binary" and "trinary" with no explanation as to where

I did do another system and it had the other stars intersperced(sic?) with the planets

Is that possible? sounds hazardous to Travellers

Thanks for the help

And when I get a system worth showing in Celestia I'll post the results in the IGTR. Now about those ships...

Tom

 

[Berg]

It does seem to need the extra data for a "D" star or the program doesn't include them

Is there a work around to have "D"'s in a binary or trinary system that H&E will accept? maybe this is what they were before? I'm ignorant of the finer points of this, and am appreciative of the help. I don't want to go through all the star data and change it

I could make them all G5V's

Tom

 

[Peter Schutze]

>Maybe the F V captured a binary brown dwarf pair? Though that's somewhat unlikely in itself... it's a bit of an odd system.

the only thing unlikely based on current knowledge is that we havent found many brown dwarfs .... then again they added a lot of M stars to the local neighbourhood in the last couple of years and they're a lot easier to find than brown dwarfs