"Most comets reach the inner part of the solar system after an inward journey of around a light year. Some of them get trapped by Jupiter's gravity and end up in elliptical orbits - like the Jupiter family comets shown here."
SET TIME PERIOD 500;
LOAD SETTINGS :MEDIA:GTours:4_Comets:4_01.RS3;
REFRESH;
SET TIME DELAY 3;
FILTER
358 1
;
REFRESH;
SET TIME DELAY 2;
FILTER
362 -81
363 -4
;
REFRESH;
SET TIME DELAY 2;
FILTER
362 120
363 3
;
REFRESH;
SET TIME DELAY 2;
FILTER
362 -16
363 1
;
REFRESH;
SET TIME DELAY 2;
FILTER
362 -156
363 -2
;
REFRESH;
}
{
"The most famous of all short-period comets, Halley's comet, returns every 76 years. Its period, though apparently long, is much shorter than the thousands of years before most comets revisit the inner solar system."
SET PANEL TIME 2 102;
SET PANEL TIME ON;
SET TIME VALUE -304 0.00000000000000;
SET TIME VALUE -17 0.00000000000000;
SET TIME VALUE -6575 -0.00009259255603;
SET POSITION VALUE 0.000001 0.000001 20.000000000000;
FILTER
352 -1
362 119
590 -2
591 -3
592 -2
593 1
594 1
598 -2
;
SET POSITION VALUE -5.585054 0.000000 0.000000000000;
SET POSITION VALUE 0.000000 -0.716099 0.000000000000;
SET POSITION VALUE 0.000000 0.226893 0.000000000000;
SET POSITION VALUE 0.000000 0.000291 0.000000000000;
SET POSITION VALUE 0.000000 0.000223 0.000000000000;