"I do not quite understand what you mean," returned Gant.
"We compute stellar positions in latitude from the angle above or below the equator of Terra, which we call 'Declination' and in longitude by their rise as the planet rotates, which we call 'Right Ascension'. Therefore the so-called 'Celestial equator' is a projection of the Earth's equator upon the sky, and the colures pass from celestial pole to celestial pole, which are projections of Terra's axis. Now, since the Earth's equator is tilted with respect to the Earth's orbit, and the Earth's orbit is tilted with respect to the Galactic Equator, I'll be darned if I know how to explain in mutual terms. Oh, we assume that the galactic center is in a region of the sky we call 'Sagittarius' but that is meaningless."
"I agree. Wait a moment."
Gant turned from the window in Dusty's viewpanel and walked away from it by several yards. He worked over a complicated keyboard for some minutes and then returned.
"Dusty," he said, "I think we can handle this as follows. To your left hand near the top of the control board you will find a key-lever marked Phanobeacon. Pull it towards you."
Dusty looked, found the key, and pulled. A bright spot of light appeared on the view panel, high in the left hand corner. "That is the true position of Marandis," said Gant Nerley. "If you tried to make it at transgalactic speeds you'd plough into about forty stars and hit about nineteen gas-clouds. You'd either blow up, or spend the rest of your life running at safe velocities. However, if you take off and steer your spacecraft so as to put that beacon spot on the calibration lines G-705, F-318, you should find the next rift-beacon somewhere near to the crosshairs of the viewpanel. Got it?"
"I think so."
"Good. Now, for take-off instructions. Ready?"
"Ready."