Sample Screen Shots of XStar
Here are some samples of what XStar looks like when it is running. It
is hard to capture the feel of a dynamic system with just a few
pictures, but I still think they look nice.
By the very nature of physics, it is impossible to tell which
direction these stars are traveling. If you place the stars at either
end of the lines, with the right velocities, they will trace the exact
same lines. In this particular case, the stars are moving from the
greenish blue end to the dark blue end.
In this picture you can tell which direction the stars are moving because
some of them have collided.
Here is one of the "special star configurations" that XStar
generates. It starts a bunch of stars in a circle and they all orbit
each other. Unfortunately, the very slightest errors in placing the
stars or in moving the stars make this pattern turn into chaos. Since
computers only have a limited number of bits to store each number,
errors can't be eliminated
The two dots in the center are called "collapsars". The are really
just unmovable gravity wells. These can't be created in nature
because everything is effected by gravity and so these collapsars
would have to move.
Here is another "special star configuration". This one creates two
lines of stars that are slightly offset from each other. The results
are lots of very symmetric patterns that look somewhat like the designs
on the dollar bill or on award certificates.
One more "special star configuration". This one has just one line of
stars, but the stars "bounce"! The patterns get more interesting as
they go along.
While I'm not an expert, I believe the information on this page is
correct. Please send suggestions and corrections to
This web site runs on 100%
Open Source Software.
This web page was last changed on 05/15/2004 at 15:15:35.