Loactions of Stars (was RE: [FT] Size of "Countries" in FT)
From: "Moody, Danny M." <DMoody@b...>
Date: Fri, 27 Nov 1998 12:28:22 -0600
Subject: Loactions of Stars (was RE: [FT] Size of "Countries" in FT)
On Friday, 27 November 1998 12:01, Thomas Barclay
[SMTP:Thomas.Barclay@sofkin.ca] wrote:
> Michael spake thusly upon matters weighty:
>
> What is CHView and what would the output be? JPG? GIF? Do you have
> the current system list (and is it affected by anything Jon T just
> contributed?)
"ChView is intended as a three-dimensional aid to: viewing some of the
nearer stars of our galaxy; navigating the distances between them;
accessing basic information (and updating what we know); and, hopefully,
having some fun. Data files updated to Hipparcos distances currently
provide nearly 8,500 stars and other celestial objects believed to lie
within 150 light-years (ly) of Earth, in a 300-ly diameter sphere.
Future plans include modules for selecting a star (or multiple star
system) and, based on available data and known astronomical
relationships, for creating your own star system (of planets, moons,
asteroids, Kuiper belt, Oort cloud/cometary halo, and even human
colonies or space communities), for voyaging in faster-than-light (FTL)
"starships", and the like."
It can be found at http://www.maths.tcd.ie/~jaymin/chview/.
The latest CHView data files use the Hipparcos data - the most recent
and most accurate wrt distances and location of stars.
This is a listing of all stars <10 ly from Terra:
>From To Distance
Earth-Sol Proxima Centauri 4.22214
Earth-Sol A. Centauri3 4.45703
Earth-Sol Barnard's Star 5.98041
Earth-Sol Wolf 359 7.782
Earth-Sol Lalande 21185 8.30947
Earth-Sol Sirius2 8.61066
Earth-Sol Luyten 726-8 8.78784
Earth-Sol Ross 154 9.69588
None of them, except for ACent, would make really good sites for
habitable planets.
At 15ly, you get a only couple useful systems (Tau Ceti, 61 Cygni).
At 25ly, you get a good number (Xi Ursae Majoris, etc), maybe about a
dozen and a half.
So, I would postulate this (assuming that most worlds are earth-type (to
allow more DSII games)):
Core Worlds:
Sol (G2V)
Centaurus (G2V)
Barnard's Star (M3V)
Inner Colonies: (out to about 25ly from Sol)
includes-
Beta Hydri (G1IV)
61 Cygni (K3V)
Tau Ceti (G8V)
Delta Pavonis (G5V)
82 Eridani (G5V)
Procyon (F5V)
Xi Bootis (G8V)
Xi Ursae Majoris (G0V)
...and others
Outworlds: (worlds beyond 25ly from Sol)
...other worlds
It would not be to difficult to whip up a CHView file with systems
labled for FT. The only question that realy needs to be answered is:
what is the speed/endurance of FT's FTL drives?
vargr1 UPP-8D9B85
---------------------------- Omnia dicta fortiora, si dicta latina.
Meyers-Briggs personality type: ENTJ vargr1@jcn1.com
"...the ENTJ is not one to be trifled with." dmoody@bridge.com