Neil - Hi!<br /><br />Well, if the perturbations are already set, then in effect the object is following a set course.<br /><br />I suspect the verse is talking about actually escaping the laws of our universe somewhat like the people being illustrated have left God's moral laws:<br /><br />(Jude 13) . . .stars with no set course, for which the blackness of darkness stands reserved forever.<br /><br />I.e., escaping the light cone of our universe.<br /><br />Note that I am engaged in scientific speculation, the correct interpretation of both the scientific facts and the verse are not determined at this time, to my knowledge.<br /><br />Well, to get a complete picture of the Biblical astronomy model one would also have to consider 1 Corinthians 15:41 - "star differs from star in glory."<br /><br />The different types of stars you describe would also demonstrate this difference in radiant glory.<br /><br />And lifespan is also involved as the cold dark stars you refer to are also old, bringing to mind Hebrews where our heavens are described as growing old and so severely changed it is compared to death or destruction:<br /><br />(Hebrews 1:10-12) . . .And: "You at [the] beginning, O Lord, laid the foundations of the earth itself, and the heavens are [the] works of your hands. 11 They themselves will perish, but you yourself are to remain continually; and just like an outer garment they will all grow old, 12 and you will wrap them up just as a cloak, as an outer garment; and they will be changed, but you are the same, and your years will never run out."<br /><br />Note that the word "perish" in Greek literally means "will destroy themselves" (Footnote, NW translation).<br /><br />Now, other verses show the sun, moon and earth will remain forever. The verses do not contradict so therefore these bodies will be so severely changed it could be compared to destruction- yet Psalms 37:29 indicates earth will always be populated with good people.<br /><br />But getting back to Jude 13, note that th