100 diameter

[email removed] (Andy Lilly) wrote:

>100 DIAMETERS: EXCEEDING HABITABLE ZONE FOR A STAR
>1) Not all inhabited worlds are in the habitable zone. This is a
>possibility for explaining why outer worlds are inhabited when they
>seem to have no other redeeming feature.

>2) Why keep beyond 100 diameters? Well, in my world, opinion, instant,
>etc. gravity wells disrupt jump-fields and can 'pull' ships off-
>course. I retain the 100-sun diameter limit for inter-system jumps on
>the principal that when travelling several light-years 'through' the
>Nth dimension, you can't afford to have your nav calculations affected
>by such gravity; it's bad enough that the whole universe is expanding,
>planets move around suns, let alone putting another factor in. So for

Just to play the rules advocate for a while :) I (mis)quote some rules
that can be found in various books. For instance in Referee's Companion
page 20 it says that you can enter jump from any spot in the system but
only safely outside the 100 diameter limit.

And on page 13 in SOpM it says that a ship cannot enter within the 100
diameter limit of another body. I believe this is mentioned elsewhere
too.

Now comes the monkeywrench. This is taken from Imperial Navy Handbook
(INH) Revision May 28, 1992. (If you can't find it, it is because it is
a working document put on ice :) )
Rob Prior: The gravity gradient of a dense object extends further out
than one from a less-dense object. A ship can arrive within 100
diameters of a neutron star (which virtually guarantees destruction
from tidal forces) yet must also arrive 100-diametersfrom a red giant
(which is mostly hot vacuum).


>a big star the party's ship arrives at the edge of the system to make
>sure they arrive approximatel where they expected, and not in the
>middle of a planet or sun. Now, in-system jumps... travelling a few
>AUs is so much less distance than inter-system that gravity can be
>allowed for a bit - you don't have to rely on old nav charts - you're
>in system, you can scan around and see exact where you are, where the
>planets and sun are, and even map or calculate gravity variations
>across the local system. Now you're ready to do an in system jump which
>can go within the sun's 100 diameters but still ought stay outside 100
>diameters of planets and the like - fluctuations in the gravity
>'contour map' may still pull you off line, so you want to keep of
>planets, just for safety (i.e. star law 287312 dictates...) In my game
>(personal opinion at this instant, etc.) you can activate a jump drive
>anywhere you like, even on a planet's surface... Of course that doesn't
>mean you'll arrive where you wanted... and in the latter case you'd
>better be hovering, or most of your landing gear's outside the jump
>field.

I do also let my players acticate their jumpdrive where-ever they want,
if they are crazy enough. It is a great way to put them where you want
them :)


Roger "StarWolf" Myhre