The polar co-ordinates disappeared completely from the center of the viewpanel and centered around the phanobeacon spot. They made larger and larger arcs as the circles approached the top of the panel. "Now this is going to be tricky. You must twist the 'Tee' bar slowly and let the ship rotate, but you must also move it so that the phanobeacon stays near its present off-center position. But before you do this, let me explain what you are actually doing in space. Picture a needle-shaped spacecraft with a line along the axis running out before the ship, marking the line of drive, or direction. At some distance from the line lies a spot which denotes the phanobeacon. Somewhere out beyond, there is another spot that must be sighted within the confines of an angle not greater than the angle made between the point of aim, or line of drive, and the imaginary line running from the nose of the ship to the phanobeacon. So you must cause the ship to rotate on a false axis, making the line of flight describe a cone of revolution with the phanobeacon on the axis of the cone. Now, go ahead and try." "Okay." Dusty moved the 'Tee' bar and the stars moved in jaggledy little scallops along a greater arc. The center of the beacon held the polar lines, but they moved with the stars and with the beacon. It made Dusty dizzy and his eyes began to ache. "What am I looking for?" he asked plaintively. "Look along the outer circles for a winking st--" "Got it!" "Good. Turn the 'Tee' bar to neutral," said Gant. "Return the 'Co-ordinate' switch back to the center of the 'H' pattern. Center the stellar course beacon on the point of aim." The winking star flashed at Dusty like a flag. It danced crazily as he manipulated the 'Tee' bar with all of the thumb-handedness of the rookie pilot on his first attempt at the controls. There was so much to do, so many things to handle, so many motions to make. Dusty gripped the 'Tee' bar tightly, too tightly. When he let go with one hand to flip a switch or to make an adjustment, the grip of his other hand moved the bar. It became sweaty and sticky, then it became slippery and he gripped it even tighter, which made it worse because his fine control left him as he strove to hold the handles tighter and tighter. In a jagged line like the trail of a rising smoke, the winking star proceeded to the center of the viewpanel. There it hung, wabbling around in tiny circles and occasionally making a brief jerky dart to one side or the other. Dusty mopped his face and the beacon star jumped; he grabbed the handle again and the star leaped across the center and wabbled on the other side of zero-zero. "Got it," he said in a quavering voice. "Now rotate the ship until the phanobeacon is on the vertical hairline. Then flip the switch to 'Rectangular' again."